Building permits, zoning and septic rules in Chandler, Arizona

At a glance

Building permits

Issued by the City of Chandler Building Safety division²

Zoning

Chandler's own zoning code, Chapter 35 of the city code¹

Building codes

2024 International Codes with the 2023 National Electrical Code, for plans submitted on or after July 1, 2025⁴

Septic

Final inspection requested through Maricopa County; the system needs discharge or backfill authorization³

RV living

Inhabiting an RV parked on a residential street is prohibited⁵

Accessory dwellings

Allowed in the AG-1 district under Section 35-2202.2 of the city code⁶

SF-8.5 lot size

8,500 square feet minimum, 70 feet wide⁷

Floodplain

Permits required for building or site alterations in flood zones⁸

Who to call

Contact details are copied from each office’s official page and were checked against it on October 16, 2026.

Does Chandler, Arizona have zoning?

Yes. Chandler's zoning code is Chapter 35 of the City of Chandler Municipal Code, and it applies to land inside city limits¹. Maricopa County's separate zoning ordinance covers only unincorporated land, so it does not govern a Chandler lot⁹.

Rules change by district. In the single-family SF-8.5 district, the minimum lot is 8,500 square feet and 70 feet wide⁷, and buildings may cover no more than 40 percent of the lot¹⁰. In the AG-1 agricultural district, accessory dwelling units are allowed if they meet Section 35-2202.2 of the city code⁶.

We could not confirm height limits, minimum dwelling size, tiny-home rules, manufactured-home occupancy or agricultural exemptions for Chandler lots. Ask the Planning & Zoning office, and use the planner of the day line before you buy¹¹.

Do you need a building permit in Chandler, and who issues it?

Inside Chandler city limits, the city issues building permits, not Maricopa County. Chandler's Building Safety division reviews plans, issues permits and conducts inspections².

Chandler adopted the 2024 International Codes and the 2023 National Electrical Code, and plans submitted on or after July 1, 2025 must comply with them⁴. A pre-technical review is required before any proposed subdivision, site plan development, new building or substantial building addition¹².

We could not confirm whether Chandler offers an owner-builder exemption, so ask Building Safety before planning to pull a permit yourself.

How do you apply for a building permit in Chandler?

Chandler offers electronic plan review for all projects and recommends electronic submittal; applicants register for the Citizen Access portal¹³. Walk-in plan review runs Monday to Friday for residential and small commercial projects, and the plan reviewer decides whether a given project qualifies¹³.

Building Safety is at 215 E. Buffalo St., Chandler, AZ 85225, phone 480-782-3000². Chandler publishes a development fee schedule and a building permit fee page; check those for current amounts rather than relying on an estimate.

How do septic permits work inside Chandler?

Septic is handled by Maricopa County, not the city. For a new or altered onsite wastewater system inside Chandler, a final inspection is requested through the county process, and the system must receive discharge authorization or authorization to backfill³. Existing systems with additions or remodeling may need a minor plan review³.

To request the inspection, complete the Request for Discharge Authorization form and email it to SepticQuestions@maricopa.gov¹⁴. The county's Environmental Services Department runs the Onsite Wastewater Program in unincorporated areas, issued on the state's behalf¹⁵.

We could not confirm a rule requiring new homes to connect to public water or sewer; ask Chandler Development Services whether your address has a sewer connection.

Can you live in an RV or tiny home in Chandler?

Chandler prohibits inhabiting an RV or other prescribed vehicle while it is parked on a residential street; the rule allows only loading and unloading for up to 48 hours⁵. That rule addresses street parking, not every case of living in an RV on private property, and we could not confirm a separate rule for private lots.

We also could not confirm any Chandler rule for tiny-home occupancy⁵. Ask Planning & Zoning before you buy a lot for either plan¹¹.

Building a home in Chandler: the steps, in order

1. Confirm the lot's zoning district and its lot-size and coverage rules with Planning & Zoning¹¹.
2. Complete the city's pre-technical review for a new building or subdivision¹².
3. Plan driveway access from a local or collector street, because new residential access from an arterial street is not allowed¹⁶.
4. Check whether the lot is in a flood zone, where permits are required for any building or site alterations⁸.
5. Submit plans to Building Safety, designed to the 2024 codes⁴.
6. If the lot uses septic, request the final inspection through Maricopa County³.

What stays with Maricopa County, and what to check before you buy

Septic final inspections go through the county³, and Arizona's statewide well rule requires notice of intent to drill, although we could not confirm how it applies to a Chandler lot¹⁷. For land outside city limits, read the Maricopa County page, because the county's building and zoning rules apply there instead.

County-level context: Maricopa County's typical home value is $461,315¹⁸, its effective property tax rate is about 0.5 percent¹⁹, and annual precipitation averages about 8.6 inches²⁰.

Watch-outs

• Chandler's rules apply only inside city limits; a parcel with a Chandler mailing address may sit in unincorporated Maricopa County, where the county's own building and zoning rules apply, so confirm the jurisdiction with Planning & Zoning¹¹.
• Plans submitted on or after July 1, 2025 must meet the 2024 codes, so older plan sets may need redesign⁴.
• We could not confirm Chandler's rules on owner-builder permits, height limits, minimum dwelling size, tiny homes or agricultural exemptions; call Planning & Zoning or Building Safety before you commit¹¹.

Sources

1. Zoning Code and Amendments (Chandler), quoted and re-checked
2. City of Chandler Development Services, Building Safety (chandleraz.gov)
3. Onsite Wastewater Forms / Applications (Chandler), quoted and re-checked
4. Building Safety: Plan Review, Permits and Inspections (Chandler), quoted and re-checked
5. 12-4.6. Parking oversized vehicles, trucks or trailers on residential streets prohibited (Chandler), quoted and re-checked
6. Article IV. AG-1—Agricultural District (Chandler), quoted and re-checked
7. 35-703. Height and area regulations (Chandler), quoted and re-checked
8. Floodplains in Chandler (Chandler), quoted and re-checked
9. Maricopa County Zoning Ordinance Update, quoted and re-checked
10. 35-703. Height and area regulations (Chandler), quoted and re-checked
11. City of Chandler Planning & Zoning (chandleraz.gov)
12. Development Services (Chandler), quoted and re-checked
13. Building Safety: Plan Review, Permits and Inspections (Chandler), quoted and re-checked
14. Maricopa County Environmental Services, Onsite Wastewater Program (swm.maricopa.gov)
15. Site Investigation and Soils Evaluation for an On-Site Wastewater Treatment Facility Instructions, quoted and re-checked
16. City of Chandler Engineering Design Standards Manual (Chandler), quoted and re-checked
17. Permitting and Wells Overview, quoted and re-checked
18. Typical home value (Zillow): Bolthole Index county data
19. Effective property tax rate: Bolthole Index county data
20. Annual precipitation: Bolthole Index county data

Written October 16, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.