Building permits, zoning and land rules in Nogales, Arizona

At a glance

Building permit

City development review is documented; ask Community Development which residential work requires a permit¹⁶

Zoning

Nogales has its own Zoning and Development Standards Code⁷

Septic

Santa Cruz County handles conventional systems; ADEQ handles other categories⁴⁵

Floodplain

City standards apply, with county floodplain staff serving Nogales³⁸

Subdivision

City subdivision platting procedures apply inside Nogales²

Owner-builder

A state contractor-licensing exemption may apply, but it does not remove local building review⁹

Who to call

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

Do you need a building permit in Nogales, Arizona?

Nogales publishes a municipal development-review framework covering review authority, administration, enforcement, site plans, access, subdivision platting and fees, but the available material does not establish a complete general rule for which new homes or alterations require a building permit.¹ Start with City of Nogales Community Development before designing or ordering a structure; the office recommends a pre-application process after the initial project conversation.⁶

Arizona's owner-builder exemption is an exemption from contractor licensing for qualifying owner-occupied work, not an exemption from a local building permit.⁹ We could not confirm a Nogales-specific owner-builder rule, inspection schedule or certificate-of-occupancy requirement, so ask Community Development about all three for the proposed work.⁶

Who handles building permits and zoning in Nogales?

City of Nogales Community Development is the first stop for a parcel inside city limits. The Planning Division publishes pre-application, site-plan review, conditional-use, rezoning, variance, special-use, subdivision-plat and lot-split materials.⁶ Call 520-287-6571 or visit 777 North Grand Avenue, Nogales, AZ 85621.⁶

Santa Cruz County's Building Department and Planning office administer rules for unincorporated land, not ordinary city building and zoning review.¹⁰⁷ A Nogales mailing address does not by itself settle jurisdiction, so confirm that the parcel is inside city limits with Community Development before relying on the city code.⁶

Does Nogales have zoning, and what does it mean for RVs and tiny homes?

Nogales administers its own Zoning and Development Standards Code inside city limits, separate from Santa Cruz County's rules for unincorporated land.⁷ The city code includes municipal review authority, administration and enforcement, while its development standards cover site plans and access.¹

We could not confirm current district-specific minimum lot sizes, setbacks, lot coverage, building heights or minimum dwelling sizes from the available material. Ask Community Development for the parcel's zoning district and dimensional table before making an offer.⁶ We also could not confirm a comprehensive Nogales rule for RV living, temporary camping, tiny-home occupancy, manufactured-home occupancy or accessory dwellings; the statewide long-term-rental law for spaces in RV or mobile-home parks does not answer whether you may live in an RV on a private Nogales lot.¹¹

How do septic permits work inside Nogales?

For a conventional septic system serving residential or commercial property inside Nogales, Santa Cruz County manages the septic permit; other onsite wastewater permit categories go directly to the Arizona Department of Environmental Quality.⁴⁵ A construction authorization is required where a conventional onsite system is used.¹²

Santa Cruz County Environmental Health reviews plans and inspects every new septic system installed in the county, and it also inspects major repairs.¹³ Call 520-375-7900 before commissioning a site design.¹³ Only 14.7% of Santa Cruz County soils rate as free of severe limitations for a conventional drain field, so a site evaluation may materially affect the design and budget.¹⁴ We could not confirm when a Nogales property must connect to city sewer instead of using septic; ask City Community Development and the utility provider for the parcel.⁶

Building a home in Nogales: what are the steps?

1. Confirm that the parcel is inside Nogales and ask Community Development for its zoning district, allowed residential use and dimensional standards.⁶
2. Use the city's recommended pre-application process and identify every building, site-plan, access and grading approval the project needs.⁶¹
3. Confirm whether city sewer serves the parcel; if a conventional onsite system is allowed, obtain the septic construction authorization through Santa Cruz County Environmental Health.¹²¹³
4. Check flood status before fixing the house location because Nogales development standards include floodplain, grading and drainage provisions.³
5. Submit the city applications Community Development identifies and confirm the required inspection sequence before construction begins.⁶

What should you check before buying land in Nogales?

Check municipal jurisdiction, the zoning district, legal access, sewer availability and flood status before treating a Nogales parcel as buildable. City development review covers site plans and access, and the code separately identifies floodplain, grading and drainage standards.¹³ Santa Cruz County floodplain staff publish procedures for flood-prone property in the City of Nogales and can be reached at 520-375-7685.⁸

If septic is necessary, resolve feasibility early because only 14.7% of Santa Cruz County soils rate as free of severe limitations for a conventional drain field.¹⁴ Santa Cruz County's effective property tax rate is about 0.6%, and the median annual property tax bill is about $1,387; both figures are county-level context rather than a quote for a particular parcel.¹⁵¹⁶

Watch-outs

• Do not use Santa Cruz County's unincorporated building or zoning standards for a parcel inside Nogales; the city administers its own development code.⁷
• A city building review does not replace septic approval: conventional septic systems go through Santa Cruz County, while other onsite-system categories go to ADEQ.⁴⁵
• We could not confirm a comprehensive Nogales rule for RV living or tiny homes on private land; ask Community Development before buying for either use.⁶

Sources

1. Development Standards Code Update - 2024 (Nogales), quoted and re-checked
2. Development Standards Code Update - 2024 (Nogales), quoted and re-checked
3. Development Standards Code Update - 2024 (Nogales), quoted and re-checked
4. Onsite Wastewater Treatment Facility (Septic System) (Nogales), quoted and re-checked
5. Onsite Wastewater Treatment Facility (Nogales), quoted and re-checked
6. City of Nogales Community Development (nogalesaz.gov)
7. Community Development, quoted and re-checked
8. Santa Cruz County Flood Control District and Floodplain Administration (santacruzcountyaz.gov)
9. Persons not required to be licensed; penalties; applicability (Arizona statewide rule), quoted and re-checked
10. Building Department, quoted and re-checked
11. 33-2101 - Application; duration of stay; exclusions; notice and pleading requirements (Arizona statewide rule), quoted and re-checked
12. Onsite Wastewater Treatment Facility (Septic System) (Nogales), quoted and re-checked
13. Santa Cruz County Environmental Health (santacruzcountyaz.gov)
14. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
15. Effective property tax rate: Bolthole Index county data
16. Median property tax bill: Bolthole Index county data

Written October 10, 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.