Archives December 2025

Site Development & Planning in Phoenix: Engineering Success in the Desert

Expert Civil Engineering for Successful Desert Development

Successful site development and planning in Phoenix, Arizona requires far more than standard civil engineering. From extreme heat and monsoon flooding to water conservation mandates and challenging desert soils, every project must be carefully engineered for long-term performance in the Sonoran Desert.

At Schembri Engineers, we bring 40+ years of Arizona-specific experience to site development and planning projects throughout Phoenix and the surrounding metro area. Our team designs resilient, code-compliant sites that move smoothly from concept to construction—while protecting your investment.


What Is Site Development and Planning?

Site development and planning is the comprehensive engineering process that evaluates, designs, and prepares land for construction. It determines how a property can be developed safely, efficiently, and in full compliance with local, state, and environmental regulations.

In Phoenix, site development is uniquely complex due to:

  • Extreme desert heat
  • Intense monsoon storms and flash flooding
  • Caliche and expansive desert soils
  • Water conservation and sustainability mandates
  • Strict municipal and county approval processes

Proper planning at this stage directly impacts permitting timelines, construction costs, drainage performance, and long-term site functionality.


Phoenix Site Development & Planning Services

Schembri Engineers provides full-service civil engineering for site development and planning in Phoenix, including:

Site Planning & Layout Design

Optimized placement of buildings, parking, roadways, and access points aligned with Phoenix zoning codes and climate conditions.

Grading & Drainage Engineering

Engineered grading and drainage solutions designed to manage monsoonal rainfall and Arizona’s flash flood risks.

Stormwater Management

Designs compliant with City of Phoenix and Maricopa County stormwater regulations, including sustainable desert drainage strategies.

Utility Design & Coordination

Water, sewer, gas, and electrical planning with a strong focus on water conservation and long-term system performance.

Land Development & Permitting

Expert navigation of permitting processes in Phoenix, Scottsdale, Mesa, and surrounding jurisdictions.

Infrastructure & Public Works

Design of roadways, sidewalks, and public improvements built for desert durability and regulatory compliance.


Why Site Development and Planning in Phoenix Requires Specialized Expertise

Extreme Desert Climate

Phoenix regularly experiences temperatures exceeding 110°F, creating engineering challenges that impact pavement performance, utility systems, and site usability.

Key considerations include:

  • Heat-mitigating site orientation and shading
  • Thermal expansion in pavements and utilities
  • Cool pavement technologies
  • Desert-adapted landscaping and irrigation

Water Scarcity & Sustainability Requirements

Arizona’s 100-year water supply requirement and Phoenix’s Sustainable Desert Development Guidelines have permanently changed how sites are planned.

Our designs address:

  • Long-term water availability compliance
  • Native and drought-tolerant landscaping
  • Efficient irrigation systems
  • EPA WaterSense standards

Unique Soil & Geological Conditions

Phoenix-area soils demand experienced engineering solutions:

  • Caliche layers requiring specialized excavation
  • Expansive soils that shift with moisture
  • Wind and water erosion control
  • Foundation coordination with structural systems

Monsoon & Flash Flood Management

Despite the desert climate, Phoenix monsoon storms can cause severe flooding. Effective drainage and stormwater planning is non-negotiable for every site.


The Schembri Engineers Advantage

Since 1985, Schembri Engineers has delivered trusted site development and planning solutions across Arizona. As a family-owned firm deeply rooted in the region, we bring local insight that national firms simply cannot replicate.

Our Proven Process

1. Feasibility & Due Diligence
Zoning analysis, environmental constraints, soil conditions, drainage patterns, and water availability.

2. Strategic Site Planning
Collaborative layouts that balance program goals with Phoenix climate, sustainability, and code requirements.

3. Detailed Engineering Design
Comprehensive grading, drainage, erosion control, and utility plans prepared by licensed Professional Engineers.

4. Permitting & Regulatory Coordination
Efficient navigation of city, county, and agency approvals to minimize delays.

5. Construction Phase Support
Inspections, RFIs, design clarifications, and as-built documentation.


Integrated Engineering & Design Expertise

Our site development work is fully coordinated with our Engineering and Design Services, ensuring seamless integration between civil and structural systems.

For a deeper understanding of how civil engineering impacts Arizona development, explore Your Complete Guide to Civil Engineering in Arizona.


Raw Land vs. Redevelopment in Phoenix

Raw Desert Land Development

  • Protected vegetation and wash regulations
  • Long-distance utility extensions
  • Virgin soil compaction requirements
  • Integration of open space and public amenities

Redevelopment & Urban Infill

  • Aging or non-compliant infrastructure
  • Environmental remediation
  • Limited access and tight site constraints
  • Upgraded stormwater systems

Sustainable & Climate-Resilient Site Development

Phoenix’s goal of carbon neutrality by 2060 influences modern site development strategies.

Energy Efficiency

  • Passive solar orientation
  • EV charging infrastructure
  • Renewable energy coordination

Water Stewardship

  • Rainwater harvesting
  • Native landscaping
  • Smart irrigation systems
  • Permeable pavements and bioswales

Urban Heat Mitigation

  • Shade-focused site design
  • Cool pavements and reflective materials
  • Reduced impervious surfaces

Market Sectors We Serve

  • Residential & Master-Planned Communities
  • Commercial & Mixed-Use Developments
  • Industrial & Technology Facilities
  • Public Infrastructure & Municipal Projects
  • Healthcare & Education
  • Hospitality & Recreation

Why Expert Site Development and Planning Matters

Poor planning leads to:

  • Permitting delays
  • Construction overruns
  • Drainage failures
  • Environmental violations
  • Costly redesigns and legal exposure

Investing in experienced civil engineering early prevents these risks.


Partner With Phoenix’s Trusted Site Development Engineers

When it comes to site development and planning in Phoenix, Arizona, experience matters. With 40+ years of local expertise and over 14,000 completed projects, Schembri Engineers delivers engineering solutions designed for Arizona’s most demanding conditions.

Servicing Area - Scottsdale

The Complete Guide to Finding a Commercial Civil Engineer in Scottsdale Arizona

When starting on a commercial development project in Scottsdale, Arizona, partnering with an experienced commercial civil engineer is essential for success. Whether you’re developing retail space in Old Town, constructing an office building in the Airpark, or planning a mixed-use development in North Scottsdale, understanding what commercial civil engineers do and how to select the right professional can save you time, money, and costly mistakes.

This comprehensive guide covers everything you need to know about commercial civil engineering services in Scottsdale, from the services provided to selecting the right engineering partner for your project.

What Does a Commercial Civil Engineer Do?

Commercial civil engineers specialize in planning, designing, and overseeing construction projects for business and commercial properties. Unlike residential engineers who focus on homes, commercial civil engineers tackle larger-scale projects with complex requirements, multiple stakeholders, and stringent regulatory compliance needs.

Core Responsibilities of Commercial Civil Engineers

Site Development and Planning: Commercial civil engineers conduct comprehensive site assessments to evaluate land suitability for proposed developments. This includes analyzing topography, soil conditions, drainage patterns, and environmental factors that could impact construction. In Scottsdale’s unique desert environment, this assessment is particularly critical due to expansive clay soils and caliche layers that can significantly affect foundation design and site preparation.

Grading and Drainage Design: Proper grading ensures water flows away from structures and toward designated drainage areas. Commercial civil engineers design grading plans that optimize site elevations while managing stormwater runoff—a crucial consideration during Arizona’s intense monsoon season. These designs must comply with local retention requirements and prevent flooding or erosion.

Utility Coordination and Design: Every commercial project requires careful planning of water distribution, sanitary sewer collection, gas services, electrical power, and telecommunications infrastructure. Civil engineers coordinate these utilities to ensure they’re properly sized, located, and integrated with existing municipal systems.

Infrastructure Design: From parking lots and access roads to sidewalks and landscaping areas, civil engineers design all the infrastructure elements that make commercial properties functional and accessible. This includes ADA-compliant pathways, fire access routes, and delivery zones.

Regulatory Compliance and Permitting: Commercial civil engineers navigate the complex web of federal, state, and local regulations governing commercial development. In Scottsdale, this includes compliance with the city’s unique development standards, environmental regulations, and building codes. Engineers prepare permit applications, coordinate with regulatory agencies, and ensure projects meet all compliance requirements.

Construction Oversight: During construction, civil engineers provide oversight to verify that work aligns with approved plans and specifications. They conduct site visits, review contractor work, and address any field conditions that differ from design assumptions.

Why Scottsdale’s Environment Requires Specialized Civil Engineering

Scottsdale’s desert location presents unique challenges that demand specialized engineering expertise:

Expansive Clay Soils

Scottsdale sits atop soil conditions that include expansive clays—soils that swell when wet and shrink when dry. This movement can cause foundation damage, cracking, and structural problems if not properly addressed. Commercial civil engineers conduct geotechnical investigations to understand soil behavior and design foundations that accommodate this movement.

Caliche Layers

Caliche is a concrete-like layer of calcium carbonate commonly found in Arizona desert soils. This hardened layer can impede drainage and complicate excavation. Civil engineers must account for caliche removal and management in their site development plans.

Monsoon Season Drainage

Scottsdale experiences intense rainfall during monsoon season, typically from June through September. Commercial developments require robust drainage systems to handle sudden, heavy rainfall. Civil engineers design detention basins, drainage channels, and stormwater management systems that protect properties and comply with municipal drainage requirements.

Extreme Temperature Fluctuations

Desert temperature swings cause materials to expand and contract. Civil engineers select appropriate materials and design expansion joints to accommodate thermal movement without compromising structural integrity.

Water Conservation Requirements

Arizona’s limited water resources mean commercial developments must incorporate water-efficient designs. Civil engineers integrate xeriscaping-compatible grading, efficient irrigation systems, and stormwater harvesting where appropriate.

Commercial Civil Engineering Services Offered by Schembri Engineers

At Schembri Engineers, we provide comprehensive civil engineering and design services tailored to Scottsdale’s commercial development needs. As one of Arizona’s Trusted Engineering Design & Inspection Services, we bring decades of expertise to every commercial project:

Site Development and Planning

Our team evaluates your proposed site, conducts feasibility studies, and develops conceptual plans that optimize your property’s potential. We consider zoning requirements, access constraints, topography, and existing utilities to create development plans that maximize value while minimizing costs.

Grading and Drainage Solutions

We design grading plans that ensure proper site drainage while meeting municipal retention requirements. Our drainage solutions protect your investment from water damage while complying with Scottsdale’s stormwater management regulations.

Hillside Engineering

Scottsdale’s northern areas feature dramatic hillside terrain. Our engineers specialize in hillside development, designing cut-and-fill operations, retaining walls, and drainage systems that work with the natural topography while meeting the city’s hillside development ordinances.

Housepads and Building Pad Engineering

Commercial building pads require precise engineering to provide a stable platform for construction. We design properly compacted, adequately drained building pads that account for soil conditions and support your structure’s foundation system.

Excavation Planning

Our civil engineers provide detailed excavation plans that address caliche removal, over-excavation requirements, and proper disposal of unsuitable materials. These plans ensure contractors understand exactly what’s required for successful site preparation.

Topographic and Boundary Surveys

Accurate surveys form the foundation of every successful civil engineering project. We conduct comprehensive topographic surveys that document existing site conditions and boundary surveys that establish property lines and easements.

Slope Analysis

For hillside and sloped properties, we perform detailed slope stability analyses to ensure safe development. Our engineers design slopes that resist erosion, meet safety factors, and comply with local regulations.

Types of Commercial Projects Requiring Civil Engineering

Retail and Shopping Centers

From neighborhood strip malls to large retail complexes, shopping centers require extensive civil engineering for parking layout, loading zones, stormwater management, and utility coordination. Scottsdale’s robust retail sector, particularly in areas like Scottsdale Fashion Square and Kierland Commons, demands high-quality civil engineering to manage traffic flow and site functionality.

Office Buildings and Business Parks

Office developments require careful site planning to accommodate parking ratios, employee amenities, and professional landscaping. The Scottsdale Airpark, one of Arizona’s premier business addresses, hosts numerous office buildings that rely on expert civil engineering for site development.

Hotels and Hospitality

Scottsdale’s tourism industry drives demand for hotels and resorts. These projects require civil engineering for site grading, drainage around pools and water features, utility coordination for high water demands, and access design for guest and service vehicles.

Medical Facilities

Healthcare facilities have unique requirements including accessibility compliance, emergency vehicle access, specialized utility demands, and often helicopter landing pads. Civil engineers ensure these complex sites function safely and efficiently.

Industrial and Warehouse Facilities

Industrial projects require heavy-duty pavement design, truck maneuvering areas, utility infrastructure for high power demands, and often specialized drainage for wash-down areas or chemical handling zones.

Mixed-Use Developments

Mixed-use projects combine residential, retail, and office spaces in single developments. These complex projects require sophisticated civil engineering to coordinate multiple use types, shared parking arrangements, and varied utility demands.

Restaurants and Entertainment Venues

Scottsdale’s vibrant dining and entertainment scene includes establishments requiring civil engineering for outdoor patios, parking areas, grease trap systems, and often rooftop amenities.

The Commercial Civil Engineering Process in Scottsdale

Understanding the civil engineering process helps property owners and developers set realistic expectations and timelines:

Phase 1: Initial Consultation and Site Assessment

The process begins with understanding your vision, budget, and timeline. Civil engineers review existing site information, discuss your project goals, and identify potential challenges or opportunities. This phase may include preliminary site visits to assess conditions firsthand.

Phase 2: Feasibility Study

Before investing significantly in design, civil engineers conduct feasibility studies to evaluate whether your project is viable on the proposed site. This includes reviewing zoning requirements, utility availability, access constraints, environmental considerations, and preliminary cost estimates.

Phase 3: Geotechnical Investigation

A geotechnical engineer conducts soil testing to determine composition, bearing capacity, moisture characteristics, and the presence of problematic soils like expansive clays or caliche. This report guides foundation design and site preparation requirements.

Phase 4: Design Development

With site data in hand, civil engineers develop detailed design plans including site plans showing building locations, parking, and landscaping; grading and drainage plans with elevations and slopes; utility plans for water, sewer, gas, electric, and communications; erosion control and stormwater management plans; and construction details and specifications.

Phase 5: Regulatory Review and Permitting

Civil engineers prepare permit applications and coordinate with Scottsdale’s Planning and Development Services Department, the Maricopa County Flood Control District, and other regulatory agencies as needed. They respond to plan review comments and revise drawings to achieve approval.

Phase 6: Construction Support

During construction, civil engineers provide services including pre-construction meetings with contractors, periodic site inspections to verify compliance with plans, review of contractor submittals, response to field conditions and questions, and coordination with building inspectors.

Phase 7: Final Inspections and Close-Out

Upon project completion, civil engineers coordinate final inspections with regulatory agencies, prepare record drawings documenting as-built conditions, and obtain final approvals and certificates of occupancy.

Scottsdale’s Commercial Development Landscape

Understanding Scottsdale’s commercial market helps contextualize the need for quality civil engineering:

Old Town Scottsdale

This historic area features a mix of art galleries, boutiques, restaurants, and entertainment venues. Development here requires sensitivity to historic character, compliance with design guidelines, and careful integration with existing infrastructure.

Scottsdale Airpark

The Airpark is Arizona’s largest employment center, housing corporate headquarters, professional offices, and light industrial facilities. Projects here require efficient site design, professional landscaping, and infrastructure that supports business operations.

North Scottsdale

This rapidly developing area features luxury retail, high-end office space, and upscale restaurants. The dramatic desert landscape and hillside terrain require specialized civil engineering to preserve natural features while creating functional commercial spaces.

Kierland and DC Ranch

These master-planned areas feature mixed-use developments combining retail, office, and residential uses. Civil engineering here must coordinate multiple property types and create cohesive site development.

McDowell Corridor

This area along Loop 101 sees ongoing commercial development including medical facilities, business parks, and retail centers. Projects benefit from good freeway access but require careful drainage design and utility coordination.

How Civil Engineering Impacts Commercial Project Success

Quality civil engineering directly influences project outcomes in measurable ways:

Cost Savings

Experienced civil engineers optimize site designs to minimize earthwork, reducing expensive cut-and-fill operations. They right-size utilities and infrastructure, avoiding both under-design that fails to meet needs and over-design that wastes money. Proper drainage design prevents expensive water damage repairs. Efficient permitting reduces holding costs by shortening approval timelines.

Risk Mitigation

Civil engineers identify and address potential problems during design when solutions are inexpensive, rather than during construction when changes cost exponentially more. Their expertise ensures compliance with regulations, avoiding costly violations or project delays. Proper geotechnical investigation and foundation design prevent structural failures that could result in lawsuits and reputation damage.

Functionality and Value

Well-designed civil infrastructure enhances property functionality, making sites more attractive to tenants and customers. Proper parking layout, clear circulation, and attractive landscaping areas contribute to commercial success. These elements directly impact property values and rental rates.

Long-Term Performance

Quality civil engineering creates infrastructure that performs reliably for decades. Proper drainage prevents ongoing maintenance issues. Appropriately designed utilities accommodate future needs without expensive retrofits. Durable pavements and site improvements minimize repair and replacement costs.

Selecting the Right Commercial Civil Engineer in Scottsdale

Choosing your civil engineering partner is one of the most important decisions in your project. Consider these factors:

Arizona Professional Engineering License

Verify that your engineer holds a current Arizona Professional Engineering (PE) license. Only licensed engineers can sign and seal engineering plans for permit submittal. Arizona’s State Board of Technical Registration maintains a searchable database of licensed professionals.

Local Experience and Knowledge

Scottsdale has unique development standards, review processes, and regulatory requirements. Engineers familiar with the city’s Development Services Department, standard practices, and relationships with plan reviewers can navigate the permitting process more efficiently. They understand local soil conditions, climate challenges, and construction practices.

Commercial Project Portfolio

Review the engineer’s experience with commercial projects similar to yours. An engineer who primarily works on residential subdivisions may lack the specific expertise required for complex commercial developments. Ask for examples of completed projects, references from previous clients, and outcomes achieved.

Integrated Services

Projects often require multiple engineering disciplines. Firms offering civil, structural, mechanical, electrical, and plumbing engineering under one roof provide better coordination and can identify potential conflicts early. Schembri Engineers provides this integrated approach, coordinating all engineering disciplines for seamless project delivery.

Communication and Responsiveness

Your civil engineer should communicate clearly, respond promptly to questions, and keep you informed throughout the project. During your initial consultation, assess whether they listen to your concerns, explain concepts in understandable terms, and demonstrate genuine interest in your project’s success.

Value vs. Cost

The lowest bid isn’t always the best value. Experienced engineers may charge more upfront but save you significantly through optimized designs, fewer change orders, shorter permit approval times, and prevention of expensive problems. Consider the total project cost, including potential issues avoided, not just the engineering fee.

Professional Reputation

Research the firm’s reputation through online reviews, Better Business Bureau ratings, professional organization memberships, and conversations with local contractors or developers who have worked with them. Schembri Engineers maintains an excellent reputation with over 50 five-star reviews and recognition as an Angi Super Service Award winner.

Common Commercial Civil Engineering Challenges in Scottsdale

Drainage and Flood Control Compliance

Scottsdale’s monsoon season creates intense rainfall that must be managed properly. The Maricopa County Flood Control District has strict requirements for stormwater detention and drainage. Civil engineers must design systems that meet these requirements while minimizing costs and land use.

Water Quality Regulations

Commercial developments must comply with EPA and Arizona Department of Environmental Quality regulations regarding stormwater pollution. Civil engineers design stormwater pollution prevention plans that protect water quality while allowing construction to proceed.

Traffic Impact and Access

Commercial developments affect traffic patterns and may require traffic studies, turn lanes, traffic signals, or other improvements. Civil engineers coordinate with the city’s transportation department to ensure adequate access and traffic safety.

Utility Capacity and Coordination

Existing utility infrastructure may lack capacity to serve new development. Civil engineers assess utility availability early in the planning process and coordinate necessary extensions or upgrades with utility providers.

Environmental Regulations

Sensitive lands, protected species habitat, or archaeological sites can constrain development. Civil engineers work with environmental consultants to design projects that comply with federal, state, and local environmental regulations.

Neighborhood Concerns

Commercial development adjacent to residential areas often faces opposition regarding traffic, noise, lighting, or aesthetics. Civil engineers can design mitigation measures that address legitimate concerns while allowing projects to proceed.

Cost Considerations for Commercial Civil Engineering

Understanding typical costs helps you budget appropriately:

Civil Engineering Design Fees

Civil engineering fees typically range from 1-3% of total project construction costs for commercial developments. Complex projects with difficult sites, extensive earthwork, or significant drainage challenges may cost more. Simple projects on flat, well-drained sites with good access and utilities may cost less.

Geotechnical Investigation Costs

Geotechnical reports for commercial sites typically cost $3,000-$10,000 depending on site size and complexity. This investment is essential and often saves many times its cost by identifying soil issues before construction begins.

Survey Costs

Topographic surveys for commercial sites typically cost $2,000-$8,000 depending on acreage and site complexity. Boundary surveys cost $1,500-$5,000. These surveys provide the accurate data engineers need for proper design.

Permit Fees

Scottsdale’s permit fees vary based on project size and type. Civil engineering permit fees (grading, drainage, utilities) typically range from several thousand to tens of thousands of dollars for large commercial projects. Your engineer can provide estimates based on project specifics.

Construction Costs

Site development construction costs vary enormously based on existing conditions and project requirements. Typical cost ranges include site clearing and demolition from $5,000-$50,000, earthwork and grading from $2-$10 per cubic yard, utilities from $50,000-$500,000+ depending on distances and capacities, paving and concrete from $4-$12 per square foot depending on thickness and finish.

Schembri Engineers: Your Scottsdale Commercial Civil Engineering Partner

Since 1985, Schembri Engineers has provided commercial civil engineering services throughout Scottsdale and the greater Phoenix metropolitan area. Our team of Arizona-licensed engineers brings deep expertise in desert construction, local regulations, and proven project management.

Why Choose Schembri Engineers for Your Commercial Project

Four Decades of Arizona Experience: We’ve completed thousands of projects throughout Arizona, giving us unmatched understanding of local conditions, building codes, and permitting processes. Our experience translates directly to more efficient designs and smoother project delivery.

Integrated Engineering Services: Rather than coordinating multiple firms, work with a single team that handles civil, structural, mechanical, plumbing, and electrical engineering. This integrated approach improves coordination, identifies conflicts early, and streamlines communication.

Licensed and Insured Professionals: All our engineering work is performed by Arizona-licensed Professional Engineers who carry appropriate professional liability insurance. Every design we provide includes the required calculations and drawings signed and sealed by registered engineers.

Client-Focused Approach: We view our role as your advocate and partner, not just a vendor. Our engineers take time to understand your goals, constraints, and concerns, then develop solutions that align with your vision while protecting your investment.

Local Knowledge: Our familiarity with Scottsdale’s development services department, standard practices, and review processes expedites permit approval. We maintain professional relationships throughout the city that benefit our clients.

Proven Track Record: With over 15,000 satisfied clients and consistent five-star reviews, Schembri Engineers has earned a reputation for excellence in engineering and exceptional client service. We’re recognized by Angi as a Super Service Award winner.

Frequently Asked Questions

Do I need a civil engineer for my commercial project?

Most commercial projects in Scottsdale require civil engineering for site development, grading, drainage, and utilities. Even simple projects benefit from engineering to optimize costs and ensure regulatory compliance. Contact Schembri Engineers for a consultation to discuss your specific project needs.

How long does civil engineering design take?

Design timelines vary based on project complexity and our workload. Simple projects may take 2-4 weeks, while complex commercial developments may require 2-3 months for complete civil engineering. Once we understand your project scope, we provide a realistic timeline estimate.

What information do I need to provide?

Start with your site address, a description of your proposed development, any preliminary architectural plans, and your project timeline. We’ll identify what additional information is needed during our initial consultation.

Can you help with permitting?

Yes. We prepare all civil engineering permit applications and coordinate with Scottsdale’s Development Services Department throughout the review process. We respond to plan review comments and revise drawings to achieve approval.

Do you work with my architect and contractor?

Absolutely. We routinely collaborate with architects, contractors, developers, and other professionals. Our integrated approach ensures all project team members work toward common goals with coordinated designs.

What are your fees?

Design fees require review of your specific project requirements. Once we understand the full scope, we provide a detailed service agreement outlining fees and deliverables. We strive to provide competitive pricing while delivering the quality and expertise your project demands.

Are there extra fees if plans are returned for corrections?

In most cases, responding to municipal review comments is included in our original fee, unless they require designs that weren’t part of the original services agreement.

The Impact of Quality Civil Engineering

The difference between adequate and excellent civil engineering extends far beyond initial design. Quality engineering creates commercial properties that function efficiently, maintain their value, attract tenants, and generate revenue reliably for decades.

Consider two retail centers built in Scottsdale: One was developed with minimal engineering, focused solely on meeting minimum code requirements. The other engaged experienced civil engineers from project inception. The first center experiences drainage problems every monsoon season, requiring expensive repairs. Its parking lot developed failures within five years, necessitating costly reconstruction. Poor utility design required expensive modifications when tenants moved in.

The second center, with quality civil engineering, operates without drainage issues. Its infrastructure serves tenants’ needs without modifications. The well-designed parking and circulation patterns contribute to tenant success. Over twenty years, the total cost of ownership is dramatically lower, and the property commands premium lease rates due to its superior functionality.

This scenario plays out repeatedly across Scottsdale’s commercial landscape. Quality civil engineering represents an investment that pays dividends throughout a property’s life.

Getting Started with Your Commercial Project

Ready to begin your Scottsdale commercial development? The first step is consulting with an experienced civil engineer who can evaluate your site, discuss your vision, and provide guidance on the path forward.

Schembri Engineers offers initial consultations to discuss your project needs, assess site conditions and challenges, explain the civil engineering process, and provide preliminary guidance on feasibility and approach. These consultations help you understand what’s involved and make informed decisions about moving forward.

Contact Schembri Engineers today to schedule your consultation:

Engineering and Design Services
Phone: (602) 399-3255
Email: dave@schembriengineers.com

Conclusion: Building Scottsdale’s Commercial Future

Commercial development in Scottsdale requires more than architectural vision—it demands the technical expertise, local knowledge, and practical experience that commercial civil engineers provide. From initial site assessment through final construction, civil engineers ensure projects are safe, functional, code-compliant, and built to perform reliably in Arizona’s challenging desert environment.

Whether you’re developing retail space, office buildings, hospitality properties, or industrial facilities, partnering with an experienced commercial civil engineer protects your investment and sets your project up for long-term success. Scottsdale’s unique combination of expansive soils, dramatic topography, monsoon drainage challenges, and sophisticated development standards demands engineers who understand these factors intimately.

At Schembri Engineers, we bring over four decades of Arizona experience, integrated engineering capabilities, and a proven commitment to client success. Our licensed professionals have designed civil engineering solutions for thousands of commercial projects throughout Scottsdale and the Phoenix metropolitan area.

Don’t leave your commercial project’s success to chance. Contact Schembri Engineers today to discuss how our commercial civil engineering expertise can help bring your Scottsdale development vision to reality while protecting your investment and ensuring long-term performance.


Schembri Engineers is a family-owned Arizona engineering firm established in 1985, providing civil, structural, mechanical, plumbing, and electrical engineering services throughout Scottsdale and the Phoenix metropolitan area. We are licensed, insured, and committed to delivering excellence in engineering and exceptional client service.

building foundation

The Complete Guide to Engineering and Designing Housepads in Arizona

A housepad, also known as a building pad, is a leveled and compacted area of land engineered to serve as the stable base upon which a structure’s foundation will be built. For home construction in Arizona, the engineering and designing of housepads is critical due to the region’s challenging soil conditions, including expansive clays and caliche layers. This essential preparation is a crucial first step in any successful Arizona building project, ensuring the long-term structural integrity of the home. Engineering and Design Services are necessary to manage the unique geotechnical challenges presented by the desert environment.


What is a Housepad?

A housepad, also called a building pad, is a leveled and compacted area of land that serves as the prepared site where a structure will be built. Think of it as the stable platform that supports your foundation and ultimately your entire home. In Arizona’s unique desert terrain, proper housepad engineering and preparation is not just recommended—it’s essential for long-term structural integrity.

The housepad acts as the interface between the natural ground and your building’s foundation. It provides a uniform, stable surface that can support the weight of your structure while managing water drainage and resisting soil movement.

Why Housepads are Critical in Arizona

Arizona’s desert environment presents unique challenges that make professional housepad engineering and design particularly important:

  • Expansive Soils: According to the Arizona Geological Survey, expansive clay and collapsing soils are widespread throughout the state. These soils expand when wet and shrink when dry, causing significant foundation movement if not properly addressed by specialized structural design.
  • Caliche Layers: Caliche is a concrete-like layer of calcium carbonate commonly found in Arizona desert soils. This hardened layer can impede drainage and root penetration, requiring specialized removal techniques and engineering considerations.
  • Monsoon Seasons: Arizona experiences intense seasonal rainfall that can quickly saturate unprepared sites. Proper housepad design includes drainage solutions to channel water away from foundations.
  • Extreme Temperature Fluctuations: The desert climate causes soil to crack and shift due to dramatic temperature changes between day and night, and between seasons.
  • Soil Compaction Issues: Arizona soils often lack organic matter and have poor natural aggregation, making proper compaction techniques essential for stability.

The Housepad Engineering Process

Professional housepad engineering involves multiple disciplines working together to create a stable building platform. Here’s what the process entails:

1. Site Assessment and Geotechnical Investigation

Before any dirt is moved, a thorough site assessment must be conducted. This includes:

  • Geotechnical Report: An Arizona registered engineer performs soil testing to determine composition, bearing capacity, and moisture characteristics. This report provides critical guidance on excavation depth, compaction requirements, and foundation design.
  • Topographical Survey: Surveyors create detailed maps of the site’s current elevation and contours, identifying property corners and establishing benchmark elevations.
  • Drainage Analysis: Engineers assess how water flows across and around the site, particularly important for Arizona’s monsoon-prone areas.

2. Site Planning and Design

With assessment data in hand, engineers develop the housepad design:

  • Elevation Planning: The pad must be raised above surrounding terrain to facilitate drainage. Arizona typically requires a minimum 6-inch elevation difference within 10 feet of the foundation.
  • Size Specifications: The housepad should extend at least 5 feet beyond the building footprint in all directions, providing space for construction access and proper water runoff.
  • Grading Plans: Engineers design slopes and contours that direct water away from the structure while complying with local retention requirements.
  • Drainage Solutions: Plans may include French drains, swales, retention basins, and other features to manage water flow effectively.

3. Excavation and Preparation

Once housepad engineering plans are approved, the physical work begins:

  • Clearing: All vegetation, topsoil, organic materials, and debris must be completely removed.
  • Over-Excavation: Based on the geotechnical report, soil is removed to a specified depth to remove unstable material.
  • Caliche Management: If caliche layers are present, they must be broken through using specialized equipment.

4. Soil Compaction and Testing

Proper compaction is crucial for housepad stability and represents one of the most technical aspects of the process:

Compaction Process:

  1. Clean fill material is placed in thin layers called “lifts,” typically 8-12 inches thick.
  2. Each lift is moisture-processed to achieve optimal water content for compaction.
  3. Heavy equipment compresses each lift to specified density.

Testing and Verification:

  • Soil engineers conduct field density tests every 12 inches of depth.
  • Tests verify that compaction meets specifications (typically 90-95% of maximum density).
  • Failed tests require reworking that layer until specifications are met.

Choosing the Right Engineering Partner for Your Housepad

When selecting an engineering firm for your housepad project, consider:

  • Arizona Experience: Familiarity with local soil conditions, caliche, expansive soils, and regional climate challenges.
  • Integrated Services: Firms offering geotechnical, structural, and civil engineering, like Schembri Engineers, provide better coordination.
  • Local Knowledge: Understanding of municipal requirements and relationships with local building departments.
  • Professional Licensing: All engineers must be licensed in Arizona.

Conclusion

Engineering and designing housepads in Arizona requires specialized knowledge of desert soils, climate conditions, and local building practices. The housepad is the foundation of your foundation—proper engineering at this stage prevents costly problems for decades to come.

From geotechnical investigation through final compaction testing, each step in the housepad process serves a critical purpose. Expansive soils, caliche layers, monsoon drainage, and extreme temperatures all demand professional engineering solutions tailored to Arizona’s unique environment.

Investing in quality housepad engineering protects your most significant investment—your home. By working with experienced Arizona engineers who understand local conditions and regulatory requirements, you ensure your project starts on literally solid ground.

At Schembri Engineers, we bring deep expertise in Arizona housepad engineering and design, guiding projects from initial site assessment through final approval. Our integrated approach coordinates geotechnical, structural, and civil engineering disciplines to deliver housepads that provide lasting stability and performance in Arizona’s challenging desert environment.

Ready to discuss your housepad project? Contact Schembri Engineers to learn how proper engineering and design can ensure your building starts with a foundation built to last.

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Your Complete Guide to Civil Engineering in Arizona

A civil engineer in Arizona is a licensed professional who designs, plans, constructs, and maintains the essential physical infrastructure, from vital transportation networks to complex water systems and commercial developments. Schembri Engineers specializes in providing critical engineering and design services, ensuring Arizona’s built environment functions safely, efficiently, and sustainably. In this essential guide, we detail the unique role civil engineers play in a desert climate, tackling challenges like extreme heat, complex soil conditions, and water resource management to support Arizona’s rapid growth.


What Is a Civil Engineer?

A civil engineer is a licensed professional who designs, plans, constructs, and maintains the physical infrastructure that forms the backbone of modern society. From highways and bridges to water systems and commercial developments, civil engineers ensure that Arizona’s built environment functions safely, efficiently, and sustainably.

In Arizona, civil engineers play a critical role in addressing the unique challenges of developing infrastructure in a desert climate while supporting one of the nation’s fastest-growing populations.

The Role of Civil Engineers in Arizona

Civil engineers in Arizona handle diverse projects that directly impact communities across the state. Schembri Engineers focuses on delivering competence and professionalism in a range of services, including structural and civil design engineering.

Core Responsibilities

  • Infrastructure Design and Planning: Civil engineers develop comprehensive plans for roads, highways, bridges, and transportation networks that connect Arizona’s cities and rural communities. They evaluate traffic patterns, assess environmental impacts, and create designs that balance functionality with sustainability.
  • Water Resource Management: In Arizona’s arid climate, water is one of the most precious resources. Civil engineers design and maintain water distribution systems, wastewater treatment facilities, stormwater management systems, and innovative solutions for water conservation. Projects like the historic Central Arizona Project demonstrate the critical importance of civil engineering expertise in bringing water resources to population centers.
  • Site Development: Civil engineers prepare land for residential, commercial, and industrial development. This includes grading and earthwork, utility infrastructure placement, drainage design, and ensuring compliance with local zoning requirements and environmental regulations. For a deeper dive into one crucial aspect, The Complete Guide to Civil Excavation Engineering in Arizona.
  • Construction Management: Beyond design work, civil engineers provide oversight throughout construction projects. They conduct site inspections, coordinate with contractors, perform material testing, and ensure that projects meet specifications and stay on schedule.
  • Structural Analysis: Schembri Engineers specializes in this critical area. Civil engineers evaluate the integrity and safety of buildings, bridges, and other structures. They assess how different loads affect structural components and select appropriate materials to ensure long-term performance under Arizona’s extreme temperature fluctuations and seismic considerations.

Arizona-Specific Challenges

Civil engineers in Arizona face unique environmental and geological challenges that require specialized knowledge:

  • Desert Soil Conditions: Arizona’s desert soil contains caliche, a hard calcium carbonate layer that requires specialized equipment. The soil’s composition of sand, silt, and clay can behave unpredictably, requiring careful geotechnical analysis and planning.
  • Extreme Heat: Arizona’s hot weather affects materials, causing ground cracking and shifting that civil engineers must account for in their designs. It also demands strict safety measures and material selection for longevity.
  • Water Scarcity: Rising temperatures increase evaporation rates while precipitation remains limited, creating ongoing challenges for projects. Civil engineers must develop innovative solutions for water conservation and efficient resource management.
  • Erosion and Watershed Management: In desert terrain with sparse vegetation, erosion becomes a significant concern during excavation and construction. Civil engineers implement erosion control measures and design systems that work with natural watershed functions rather than against them.

Major Civil Engineering Disciplines in Arizona

Civil engineering encompasses several specialized fields, each addressing specific infrastructure needs:

  • Structural Engineering: This is a core service area for Schembri Engineers, specializing in structural and foundation evaluation. Structural engineers focus on designing and analyzing buildings, bridges, dams, and other load-bearing structures. They ensure structures can withstand Arizona’s seismic activity, extreme temperatures, and other environmental stresses.
  • Transportation Engineering: Transportation engineers design and optimize Arizona’s roadway networks, highways, and transit systems. They analyze traffic flow patterns, improve pedestrian safety, and develop transportation infrastructure that accommodates the state’s growing population.
  • Water Resources Engineering: Water resources engineers develop systems for water supply, distribution, treatment, and flood control. In Arizona, this specialty is particularly critical, involving projects from municipal water systems to large-scale initiatives like detention basins and innovative water harvesting systems designed for desert climates.
  • Geotechnical Engineering: Geotechnical engineers study soil and rock mechanics to provide foundation design recommendations and assess slope stability. In Arizona’s diverse terrain—from desert valleys to mountainous regions—geotechnical expertise ensures that structures have adequate support and can handle unique soil conditions like expansive clays and caliche layers.
  • Environmental Engineering: Environmental engineers develop solutions for pollution control, waste management, and sustainable development. They conduct environmental impact assessments, design green infrastructure, and ensure projects comply with environmental regulations while minimizing ecological footprints.

How to Become a Civil Engineer in Arizona

Educational Requirements

Aspiring civil engineers must earn a bachelor’s degree in civil engineering from an ABET-accredited program. Arizona’s major universities offer comprehensive civil engineering programs:

  • Arizona State University: The Fulton Schools of Engineering provide extensive civil engineering education with specializations in structural engineering, transportation systems, and environmental sustainability.
  • University of Arizona: The College of Engineering offers civil and architectural engineering programs emphasizing seismic safety, flood prevention, water treatment, and sustainable construction practices.

These programs typically include coursework in mathematics, physics, chemistry, structural mechanics, fluid mechanics, geotechnics, materials science, and environmental engineering. Students also gain practical experience through laboratory work, design projects, and internships.

Licensing Process

To practice as a professional engineer (PE) in Arizona, candidates must obtain licensure through the Arizona Board of Technical Registration (ABTR). The process involves several steps:

  1. Fundamentals of Engineering (FE) Exam: Candidates must demonstrate at least 48 months of education and/or experience or be in the final year of an acceptable degree program to take the FE exam. Passing this exam grants Engineer-in-Training (EIT) status.
  2. Gain Professional Experience: After passing the FE and PE exams, applicants must show at least 96 months of combined education and experience to qualify for full registration.
  3. Principles and Practice of Engineering (PE) Exam: This comprehensive exam tests competency in a specific engineering discipline and must be passed before licensure.
  4. Apply for Registration: Arizona offers several pathways to licensure for new and experienced engineers.
  5. Maintain License: Arizona professional engineer licenses are renewed every three years from the original date of licensure. While continuing education is not strictly required for renewal, it is highly recommended for professional development.

Major Civil Engineering Projects in Arizona

Arizona’s civil engineers have designed and managed numerous landmark infrastructure projects:

  • Central Arizona Project (CAP): The CAP stands as one of the most significant civil engineering achievements in state history. This system delivers Colorado River water to central and southern Arizona, supporting millions of residents and agricultural operations.
  • Transportation Infrastructure: Arizona’s highway system continues to evolve through civil engineering innovation. Current research projects focus on infrastructure resilience, sustainability, and safety improvements.
  • Sustainable Development Projects: Civil engineers across Arizona are pioneering sustainable infrastructure solutions, including green building developments, solar energy facility infrastructure, water harvesting systems, and urban heat mitigation strategies in metropolitan Phoenix.

Working with Civil Engineers in Arizona: What to Expect

When you engage a civil engineer in Arizona for a project, the typical process includes:

  • Initial Consultation: Discussion of project goals, site conditions, and timeline expectations. Civil engineers assess feasibility and provide preliminary recommendations.
  • Site Analysis: Comprehensive evaluation of topography, soil conditions, drainage patterns, utility availability, and regulatory requirements. This may include surveying, geotechnical investigations, and environmental assessments.
  • Design Development: Creation of detailed plans, specifications, and calculations. Civil engineers coordinate with architects, surveyors, and other professionals to develop comprehensive design documents.
  • Permitting and Approvals: Navigation of local, state, and federal regulatory requirements. Civil engineers prepare permit applications, respond to agency comments, and obtain necessary approvals.
  • Construction Support: Ongoing oversight during construction, including site visits, material testing, contractor coordination, and resolution of field issues.
  • Project Closeout: Final inspections, as-built documentation, and certification that the project meets design specifications and regulatory requirements.

Selecting a Civil Engineer

When choosing a civil engineering firm in Arizona, consider the following, especially the specialized expertise offered by Schembri Engineers:

  • Licensure: Verify that the firm and its engineers hold valid Arizona PE licenses through the ABTR.
  • Experience: Look for firms with relevant project experience in your specific type of development, particularly in structural and civil design. Schembri Engineers has been serving Arizona since 1985 with a focus on structural and foundation evaluation.
  • Local Knowledge: Firms familiar with Arizona’s unique challenges, local regulations, and climate conditions provide valuable expertise.
  • Communication: Choose engineers who explain technical concepts clearly and maintain responsive communication throughout projects.
  • Technology: Modern firms utilize advanced software for design, modeling, and project management.

The Future of Civil Engineering in Arizona

Arizona’s civil engineering profession continues evolving to address emerging challenges and opportunities:

  • Infrastructure Modernization: Federal infrastructure investments are directing substantial funding toward transportation, manufacturing, and utility facility improvements throughout Arizona. Civil engineers will play central roles in planning and executing these modernization projects.
  • Climate Resilience: Engineers are developing innovative approaches to design infrastructure that withstands increasing extreme weather events, prolonged drought conditions, and rising temperatures.
  • Sustainable Development: The green building materials market continues expanding, with civil engineers increasingly incorporating sustainable practices into projects.
  • Digital Innovation: Civil engineering is embracing advanced technologies including Building Information Modeling (BIM), drone surveying, and sophisticated modeling software for complex analysis.
  • Water Security: As Arizona faces ongoing water challenges, civil engineers are developing innovative solutions for water conservation, alternative water sources, and efficient irrigation systems.

Why Arizona Needs Civil Engineers

Arizona’s rapid population growth, aging infrastructure, and unique environmental challenges create sustained demand for civil engineering expertise. Civil engineers ensure that Arizona’s development occurs responsibly, sustainably, and safely. They solve complex technical problems, balance competing demands for limited resources, and create infrastructure that will serve generations to come.

Whether you’re considering a career in civil engineering or seeking to hire a civil engineer for a project, Arizona’s civil engineering community, including experienced firms like Schembri Engineers, stands ready to shape the state’s future through innovation, technical excellence, and commitment to public welfare.