Zoning, building permits and septic rules in Dunnellon, Florida

At a glance

Zoning

Yes, the City of Dunnellon has its own zoning code¹

Building permits

Issued by the City of Dunnellon, not Marion County, inside city limits²

Septic

Florida DEP permits septic systems in Marion County; required before the building permit where sewer is unavailable³⁴

Sewer connection

New buildings must show gravity connection to city sewer unless sewer is unavailable or too costly to reach⁵

Mobile homes

Only in an approved park or subdivision, or a zone that allows them⁶

Who to call

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

Does Dunnellon, Florida have zoning?

Yes. The City of Dunnellon enforces its own zoning code inside city limits, and the community development manager is the officer assigned to enforce it¹. The code names several districts, including neighborhood business residential, and sets standards for development in each⁷.

We have not confirmed the lot-size, setback, height or accessory-dwelling rules for Dunnellon's residential districts, so ask the community development office which district a parcel sits in before you plan a build². Florida lets a local government allow accessory dwelling units in single-family zones by ordinance⁸, but we could not confirm that Dunnellon has done so.

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

Inside Dunnellon city limits, building permits go through the City of Dunnellon's community development office, which also schedules inspections by email or phone at (352) 465-8500². Marion County's building division serves unincorporated land, so a parcel inside the city should not be sent to the county counter.

Florida applies one statewide building code, and no local government has to adopt it first⁹. We could not confirm which edition the city enforces, the fee schedule or any owner-builder rules, so ask the office before you buy.

How do septic permits work inside Dunnellon?

Septic permits in Marion County, Dunnellon included, are now handled by the Florida Department of Environmental Protection rather than the county health department³. Florida law requires a permit to install, modify, repair or abandon a septic system¹⁰.

Dunnellon's code ties this to the building permit: where sanitary sewer is unavailable, or lowering service or pumping would cost disproportionately more than the land and improvement are worth, the applicant must get a septic permit before a building permit will be issued⁴. Otherwise new structures must show they can connect to the city sewer by gravity flow, and the owner pays to lower service or pump if they cannot⁵. Marion County's soils rate poorly for conventional drain fields, with only 5.7% rated not limited, so expect a site evaluation and possibly an engineered system¹¹.

Can you live in an RV, tiny home or mobile home in Dunnellon?

Mobile homes are the one answer we have confirmed: nobody may live in a mobile home inside Dunnellon except in an approved mobile home park or subdivision, or in a zone that permits mobile homes⁶. Mobile homes also may not be parked or stored in residential districts except in an enclosed structure, other than in MH districts⁶.

Florida requires an off-site-built dwelling to be allowed wherever a single-family detached home is allowed¹², so ask the city whether a given home qualifies. We could not confirm rules for living in an RV or tiny home on private land inside the city; the community development office is the place to ask².

Building a home in Dunnellon: the steps, in order

1. Call the City of Dunnellon community development office and confirm the parcel's zoning district².
2. Ask whether city sewer reaches the lot; if not, apply to Florida DEP for a septic permit first⁴³.
3. Apply for the building permit with the city².
4. Schedule inspections by email or by phone with the same office².

What stays with Marion County and the state?

Septic permits sit with the state DEP office³. Land outside Dunnellon city limits falls under unincorporated Marion County rules; see the Marion County page for that answer. Wells need a permit from the water management district or its delegate before construction¹³.

County-level context: Marion County's effective property tax rate is 0.8%¹⁴, and its typical home value is about $273,513¹⁵.

Watch-outs

• We could not confirm Dunnellon's lot-size, setback, minimum home size or RV rules; ask the community development office before you buy².
• Septic permits are handled by the Florida DEP in Marion County, not the county health department or the city³.

Sources

1. Dunnellon Zoning Appendix A, Section 2.2 Terms defined (Dunnellon), quoted and re-checked
2. City of Dunnellon Community Development (Building Department) (dunnellon.org)
3. Florida Department of Environmental Protection — Onsite Sewage Program (floridadep.gov)
4. Dunnellon Zoning Appendix A, Section 3.22 Grade requirements (Dunnellon), quoted and re-checked
5. Dunnellon Zoning Appendix A, Section 3.22 Grade requirements (Dunnellon), quoted and re-checked
6. Dunnellon Zoning Appendix A, Section 9.2 Supplemental review criteria (Dunnellon), quoted and re-checked
7. Dunnellon Zoning Appendix A, Section 8.10-2 NBR development standards (Dunnellon), quoted and re-checked
8. Florida Statutes § 163.31771: Accessory dwelling units (Florida statewide rule), quoted and re-checked
9. Florida Statutes § 553.73 — Florida Building Code (Florida statewide rule), quoted and re-checked
10. OSTDS Application Information (Florida statewide rule), 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 Statutes § 553.385, Zoning of off-site constructed residential dwellings; parity (Florida statewide rule), quoted and re-checked
13. Water Well Contractor Licensing and Permitting (Florida statewide rule), quoted and re-checked
14. Effective property tax rate: Bolthole Index county data
15. Typical home value (Zillow): 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.