Zoning, building permits and septic rules in Coral Gables, Florida

At a glance

Building permit

Issued by the City of Coral Gables Building Division, not the county²

Zoning

City Zoning Code applies inside city limits; district rules not confirmed here¹

Septic

County health department permits and inspects; county DERM approves new and replacement systems⁴

RV living

Recreational vehicles are not permitted in the city³

Manufactured homes

Not permitted in the city⁵

Who to call

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

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

Yes. The City of Coral Gables applies its own Zoning Code inside city limits¹. Miami-Dade County's zoning code governs only unincorporated land, so the county's district rules do not apply here⁶.

On RVs, the city code is blunt: recreational vehicles, park trailers and manufactured homes are not permitted in the City of Coral Gables³. That rule sits in the flood damage prevention chapter, and the section states no exceptions³. Living in an RV or a manufactured home on a lot in Coral Gables is therefore not an option⁵.

We could not confirm the city's tiny-home rules, accessory dwelling rules, minimum lot sizes, setbacks or height limits. Ask the Planning & Zoning Division at the Development Services Department².

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

Inside Coral Gables, building permits come from the city, not from Miami-Dade County. The city's Building Division is in charge of the permitting process and the Florida Building Code plan review and inspections². The county's own permit process covers unincorporated Miami-Dade only, and the county states that incorporated municipalities administer permits within their city limits⁷.

Florida's statewide Florida Building Code applies throughout the state without local adoption⁸. We could not confirm Coral Gables' permit fees, owner-builder terms or whether specific small projects are exempt, so call the Building Division before you assume anything². Do not rely on the county's owner-builder rules, which are written for unincorporated land⁹.

How do septic permits work inside Coral Gables?

Septic is not a city matter. The county health department offices do the permitting and inspection for septic tanks, and Miami-Dade County DERM reviews and approves new and total replacement systems⁴. Conventional septic systems are not allowed for new and total replacement systems serving development anywhere in Miami-Dade County¹⁰.

Soils point the same way: none of the county's soils rate as not limited for a conventional drain field, so expect a site evaluation and an engineered system¹¹. Start with the Florida Department of Health in Miami-Dade County¹². We could not confirm whether a lot in Coral Gables is required to connect to public sewer, so ask the Building Division and the county Water and Sewer Department.

How do you build a home in Coral Gables, step by step?

1. Look up your lot's zoning district in the city's Zoning Code and confirm what the Planning & Zoning Division allows there².
2. If the site would use a septic system, contact the Florida Department of Health in Miami-Dade County before design¹².
3. Apply for the building permit through the City of Coral Gables Building Division, not the county².
4. Schedule inspections with the Building Division as work proceeds².
5. Confirm flood requirements: the city's flood damage prevention chapter is where its RV and manufactured-home ban sits³.

What stays with Miami-Dade County, and what should you check before buying?

Septic and wells run through county and state health offices, not the city⁴. For land outside Coral Gables city limits, use the Miami-Dade County page, because the county's unincorporated rules differ from the city's⁷.

Before buying, check the lot's zoning district, flood zone, and whether the Building Division requires anything special for your project. County-level figures give context only: Miami-Dade County's effective property tax rate is 0.8%¹³, and the typical home value is about $522,601¹⁴.

Watch-outs

• Recreational vehicles and manufactured homes are not permitted in Coral Gables, so an RV or mobile-home plan will not work inside city limits³.
• Search results often show Miami-Dade County's permit pages, which cover unincorporated land only; inside Coral Gables, call the city's Building Division instead¹⁵.
• New septic systems in Miami-Dade County must be advanced systems, not conventional ones, so budget for that¹⁰.
• We could not confirm the city's setbacks, lot coverage, height limits, fees or owner-builder rules; ask the Development Services Department².

Sources

1. Coral Gables Code Sec. 82-30 Tree application procedure (Coral Gables), quoted and re-checked
2. City of Coral Gables Development Services Department (Building, Planning & Zoning, Code Enforcement) (coralgables.com)
3. Coral Gables Code Sec. 113-13 Manufactured homes and recreational vehicles (Coral Gables), quoted and re-checked
4. Onsite Sewage Tanks and Disposal Systems, quoted and re-checked
5. Coral Gables Code Sec. 113-13 Manufactured homes and recreational vehicles (Coral Gables), quoted and re-checked
6. Miami Dade Zoning, quoted and re-checked
7. Homeowners General Permit Information, quoted and re-checked
8. Florida Statutes § 553.73 — Florida Building Code (Florida statewide rule), quoted and re-checked
9. Homeowners General Permit Information, quoted and re-checked
10. Onsite Sewage Tanks and Disposal Systems, quoted and re-checked
11. 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
12. Florida Department of Health in Miami-Dade County (Onsite Sewage Tanks and Disposal Systems) (miamidade.floridahealth.gov)
13. Effective property tax rate: Bolthole Index county data
14. Typical home value (Zillow): Bolthole Index county data
15. How to Apply for Permits, quoted and re-checked

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.