Last reviewed October 2026
The short answer
A concrete pad on your own lot in Phoenix, no more than 30 inches above grade, does not need a building permit. The City's "Work Exempt from Permit" bulletin lists "platforms, sidewalks and driveways not more than 30 inches above grade and not over any basement or story below and which are not part of an accessible route" among the exemptions, and its commentary adds sport courts and similar uncovered uses.
What needs a permit and what does not
| Work | Permit? | Rule |
|---|---|---|
| Pad, patio, walkway or driveway on your lot, at grade | No building permit | Work Exempt from Permit, IBC 105.2 item 7 |
| Driveway in the right of way, roll or ribbon curb, up to 10.5 ft | No separate driveway permit | Driveway Policy for Single Family Development |
| Driveway in the right of way over 10.5 ft | Driveway permit | Driveway Policy for Single Family Development |
| Driveway onto a street with no curb or sidewalk | Driveway permit, MAG Detail 205 tie-in | Driveway Policy for Single Family Development |
| Detached shed up to 200 sq ft, no utilities | Exempt | Work Exempt from Permit |
| Shed over 200 sq ft, attached structures, most carports | Building permit | Work Exempt from Permit |
| Retaining wall over 3 ft | Building permit | Work Exempt from Permit |
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City of Phoenix Planning & Development bulletins TRT/DOC 00618 and 00071 (rev. 03/26). Other Valley cities have similar but not identical rules; check yours.
The driveway rule at the street
Phoenix City Code 31-44 controls driveway access to public streets, and the City's single-family driveway policy explains how it applies. Where the street already has roll or ribbon curb and gutter, up to 10.5 feet of concrete driveway inside the right of way counts as part of the on-site job. Past that, a separate permit is needed, and the policy sets residential driveway concrete in the right of way at 6 inches thick. Streets with no curb, gutter or sidewalk always need a driveway permit and an at-grade tie-in.

The parking rules that apply to a pad
Phoenix
Phoenix City Code 36-145 and Zoning Ordinance 702 require parking and maneuvering areas in front and side yards to be dust-free: asphalt, cement concrete, or on a single-family lot at least 3 inches of crushed rock or gravel inside a permanent border. The rear yard of a single-family lot is exempt.
Mesa, Gilbert and Glendale
Mesa requires concrete, asphalt or bordered crushed rock in front and side yards and keeps RVs off driveways after 48 hours. Gilbert keeps RVs out of the front and street-side setbacks and wants them screened. Glendale requires side-yard RVs to sit on concrete, pavers or asphalt. Each city page on this site quotes its own rules; start from the service area page.
Maricopa County
Maricopa County Air Quality Rule 310.01 requires residential parking and maneuvering areas of 3,000 square feet or more to be paved or stabilized as the local code allows, and limits dust from unpaved lots.