Construction Services in
Phoenix, Arizona
Infill custom builds, Arcadia renovations, urban ADUs, investment properties — we cover all of Phoenix from Midtown to the far East and West Valley.
Phoenix's Full-Service General Contractor
Phoenix is the 5th largest city in the United States and one of the fastest-growing construction markets in the country. From historic neighborhood renovations in Willo and F.Q. Story to new custom homes in Ahwatukee and Desert Ridge, Echelon Valley brings the same process and quality to every Phoenix neighborhood. We understand Phoenix permitting, infill lot challenges, and the specific building envelope requirements of the urban heat island.
Phoenix operates under the Phoenix Zoning Ordinance (Chapter 6 of the City Code), administered by the Planning and Development Department, with 26 total zone classifications across nine residential districts alone. Setback requirements vary meaningfully by zone — an R1-6 lot allows a 5-foot side setback and 15-foot rear setback with 40% max lot coverage, while an R1-10 lot requires a 10-foot side setback and 25-foot rear setback with only 30% max coverage. We pull your exact zoning designation through the city's My Community Map tool before we ever draw a plan.
Phoenix currently permits under the 2018 International Building Code with local amendments, and plan review runs through the Shape Phoenix portal or in person at Phoenix City Hall. The city takes unpermitted work seriously — a stop-work order is typically the first consequence, and lenders routinely refuse to finance a property with open code violations at resale. Every project we build in Phoenix is fully permitted from the first day of work.
Building Code: 2018 IBC with Phoenix amendments
ADU Ordinance: Zoning Text Amendment Z-TA-2-24
ADU Max Size: 1,000 sq ft (lots ≤10,000 sf) · lesser of 3,000 sf or 10% of lot (larger lots)
ADU Parking: One space typically required on lots under 10,000 sq ft
Building a Casita in Phoenix
Phoenix adopted Zoning Text Amendment Z-TA-2-24 to comply with Arizona's ADU legislation, allowing accessory dwelling units in single-family residential zones across most of the city — though a handful of zones, including RE-43, RE-24, RE-35, and R1-14, carry their own specific rules worth confirming before design begins. Only one ADU is permitted per single-family lot in Phoenix, and it must be fully self-contained with its own kitchen, bathroom, and sleeping area.
Owner-occupancy is not required, which makes Phoenix a genuinely accessible market for investors and remote landlords who want rental income without living on-site. One detail that catches homeowners off guard: unlike Chandler or Scottsdale, Phoenix typically still requires at least one off-street parking space per ADU on lots under 10,000 square feet, though properties near transit corridors may qualify for an exception. We confirm your specific parking obligation with Planning and Development before finalizing your site plan.
Our Services in Phoenix
Custom Home Construction
Ground-up custom builds in Phoenix. Single point of contact from permit to keys.
Learn More →Renovation & Remodeling
Kitchens, baths, whole-home remodels, and additions throughout Phoenix.
Learn More →ADU / Casita Builds
Detached and attached ADUs in Phoenix, built to Zoning Text Amendment Z-TA-2-24.
Learn More →Outdoor Living Spaces
Pool decks, patios, pergolas, and outdoor kitchens built for Phoenix's climate.
Learn More →Other Arizona Communities
Frequently Asked Questions
What is the maximum ADU size allowed in Phoenix?
1,000 square feet on lots of 10,000 square feet or less, and the lesser of 3,000 square feet or 10% of the lot on larger parcels, under Zoning Text Amendment Z-TA-2-24.
What building code does Phoenix currently use?
The 2018 International Building Code with local amendments, with plan review through the Shape Phoenix portal or in person at Phoenix City Hall.
Do setback requirements vary by zone in Phoenix?
Yes. An R1-6 lot allows a 5 foot side setback and 15 foot rear setback with 40% max lot coverage, while an R1-10 lot requires a 10 foot side setback and 25 foot rear setback with only 30% max coverage.
What happens if I build without a permit in Phoenix?
The city takes unpermitted work seriously. A stop work order is typically the first consequence, and lenders routinely refuse to finance a property with open code violations at resale.
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