County building permit guide
Maricopa County, Arizona building permits — complete guide (2026)
Maricopa County is the 4th most populous US county. Phoenix metro drives massive construction volume. Extreme heat (115F+) is the dominant factor -- HVAC efficiency, roof reflectance, and energy code are critical.
Avg cost: $150-$800
Processing: 2-5 weeks
~55K permits/yr
~4.5M residents
$150-$800Avg permit cost
2-5 weeksProcessing time
55,000Permits/year
ADU-friendlyADU-friendly
Ready to apply for your Maricopa County, Arizona permit?
County serves unincorporated areas. Phoenix, Scottsdale, Mesa, Tempe, Chandler, Gilbert all have their own departments.
Apply via Maricopa County
Maricopa County, Arizona Building Department
Online Available
Maricopa County Planning & Development
(602) 506-3301
Mon-Fri 7am-5pm AZ
501 N 44th St, Suite 200, Phoenix, AZ 85008
Online Permit Portal
Maricopa County reaches 115F+ in summer. Pool barrier fence requirements strictly enforced due to high child drowning rate.
Permit fees — Maricopa County, Arizona, 2026
| Permit type | Fee range | Processing | Notes |
|---|---|---|---|
| New Construction | $500-$2,200 | 3-8 weeks | Very high volume; IRC 2018; hot-dry energy code |
| Pool | $250-$800 | 2-4 weeks | Highest volume in US; barrier fence strictly enforced |
| Room Addition | $300-$1,200 | 2-5 weeks | Desert energy compliance |
| Roofing | $100-$350 | 1-2 weeks | Reflective/cool roof encouraged; tile dominant |
| HVAC | $75-$250 | 1-2 weeks | Extremely high AC demand; SEER2 required |
| Solar | $75-$250 | 1-2 weeks | Excellent resource (300+ sunny days); SolarAPP+ |
| Electrical | $75-$250 | 1-2 weeks | Panel upgrades; EV charger growing |
| Plumbing | $75-$200 | 1-2 weeks | Water conservation requirements |
| Block Wall/Fence | $50-$150 | 1-2 weeks | Block wall fencing dominant in AZ |
| ADU | $200-$700 | 2-4 weeks | Phoenix/Scottsdale have ADU programs |
How to get a permit in Maricopa County, Arizona
1
Determine jurisdiction
24 incorporated cities. Phoenix, Scottsdale, Mesa, Tempe, Chandler, Gilbert all have their own departments.
2
Energy code
Hot-dry climate: enhanced insulation, SEER2 HVAC, reflective roofing, energy-efficient windows.
3
Pool barrier requirements
5 ft min fence with self-closing/self-latching gates. Non-compliance = stop-work order.
4
Apply online
Phoenix uses ePlans. Most cities have online portals. Simple permits: 1-3 business days.
5
HOA requirements
Most subdivisions have HOAs. Get architectural approval before building permit.
6
Inspections
Available within 1-2 business days. Fast turnaround.
Jurisdictions within Maricopa County, Arizona
Special zone requirements
Extreme Heat Zone
County-wide
115F+ common. Enhanced energy code for HVAC, roofing, insulation, windows.
FEMA Flood Zones
Salt River, Gila River, Indian Bend Wash
Flash flood risk in desert washes. Elevation certificates and flood-resistant construction in mapped zones.
HOA Control
Most subdivisions
Among highest HOA penetration in US. Architectural committee approval required.
Frequently asked questions — Maricopa County, Arizona
Does Maricopa County issue permits?
Only for unincorporated areas. Cities handle their own.
Pool permit requirements?
Building + electrical + gas. Barrier fence plan must be approved before construction. 5-ft min fence with self-closing gates.
Why is HVAC the most common permit?
Extreme heat = AC systems fail at 10-12 years (vs 15-20 in milder climates). SEER2 efficiency required.
ADU in Phoenix?
Phoenix adopted ADU-friendly zoning in 2023. Detached ADUs up to 1,000 sq ft permitted by-right in most residential zones.
Census BPS 2024 - Maricopa County Planning