Building permits, zoning and septic rules in Southgate, Kentucky

At a glance

Building permits

City-contracted Campbell County Planning and Zoning handles questions about new structures, fences and alterations¹

Zoning

Southgate adopts its own zoning text and map; inspect them at the City Building²

Building permit fees

Separate city fee schedule; request the applicable amount before applying⁵

Septic permits

Northern Kentucky Health Department; construction permit required before installation or alteration³⁴

Owner-installed plumbing

Homeowners may obtain plumbing permits for their own personal residences⁶

Private wells

Kentucky requires a certified water well driller; no owner permitting application or fee for construction or abandonment⁷

Who to call

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Do you need a building permit in Southgate, KY, and who handles building work?

Southgate directs permit inquiries for new structures, fences and changes to existing structures to Campbell County Planning and Zoning under a city contract; call 859-292-3880 with the project description and address.¹ Southgate’s code places building-permit and inspection fees in a separate schedule, so request the city-applicable schedule before budgeting the application.⁵

Kentucky does not itself require a single-family dwelling building permit unless a local ordinance requires one; that statewide exception does not settle Southgate’s local requirement.⁸ We could not confirm the complete Southgate building-permit triggers or certificate-of-occupancy requirements; ask the contracted office which approvals and inspections your particular project needs.¹

Does Southgate have zoning, and where do you find lot sizes and setbacks?

Southgate has adopted city zoning regulations, including a zoning text and map available for inspection at the City Building during normal business hours.² The adopted text can be inspected at 122 Electric Avenue, Southgate, Kentucky.⁹ Ask the City Clerk’s Office to help locate the current zoning text and map, then ask the contracted planning service to identify the parcel’s district and the standards for the proposed use.⁹¹⁰¹

We could not confirm Southgate’s district-specific minimum lot sizes, setbacks, building heights or minimum dwelling sizes; obtain the applicable district provisions before choosing a house footprint or accessory structure location.⁹ For land outside Southgate city limits, use the Campbell County guide for the county’s unincorporated-area building-permit answer.¹¹

How do septic permits work inside Southgate?

Northern Kentucky Health Department is the septic authority serving Campbell County, including Southgate.³ Kentucky requires a local health department permit before constructing, installing or altering an onsite sewage disposal system, following a site evaluation and submission of a drawing, specifications and required fees.⁴ The health department lists a $300 site-evaluation fee, separate from the installation permit fee.¹²

Protect the approved disposal area from grading, heavy equipment traffic and stored building materials, and arrange the installation inspection before covering the system.¹² Kentucky plumbing rules require an independent sewage connection; where sewer is unavailable, the house drain must connect to an approved private sewage disposal system.¹³ Ask the city and health department whether an onsite system is an option at the Southgate address before commissioning a design.¹⁰¹²

Can you live in an RV or tiny home on land in Southgate?

We could not confirm whether Southgate allows residential RV occupancy, temporary camping, tiny homes or manufactured-home occupancy on an individual parcel; ask the city’s contracted planning service for the proposed use’s zoning classification and approval path.¹ Southgate’s adopted zoning text and map are the place to establish which uses the city permits at that address.²

Kentucky’s temporary vehicle-sleeping provision does not establish permission for permanent RV occupancy on private land.¹⁴ A small dwelling also does not bypass sewage approval: Kentucky requires an approved private sewage disposal system where sewer is unavailable, with the applicable septic permit before installation.¹⁵⁴ Request a city answer about occupancy before treating RV parking or a tiny-home purchase as a housing plan.¹

Building a home in Southgate: what steps should you take before construction?

1. Locate the Southgate zoning text and map at the City Building, identify the parcel’s district, and request the use and dimensional standards for the proposed home.⁹
2. Contact Campbell County Planning and Zoning through Southgate’s contracted service to establish the building-work approval requirements; request Southgate’s separate permit and inspection fee schedule.¹⁵
3. Establish the sewage connection: Kentucky requires a sewer connection or an approved private sewage disposal system where sewer is unavailable; arrange the health department evaluation and septic construction permit if an onsite system is proposed.¹³⁴
4. Obtain a plumbing construction permit before plumbing work; homeowners may apply for work in their own personal residences.⁶
5. If the site lies in an identified floodplain, obtain both state and local floodplain permits and ask the city to identify its local floodplain coordinator.¹⁶

Watch-outs

• Southgate’s city contract directs building-work questions to Campbell County Planning and Zoning; septic evaluation and installation approval remain separate health department matters.¹¹²
• We could not confirm Southgate’s RV or tiny-home occupancy rules; obtain a parcel-specific answer from the contracted planning service before buying a unit.¹
• A private well in Southgate still requires a Kentucky certified water well driller even though the state requires no owner construction or abandonment permitting application or fee.⁷

Sources

1. Campbell County Planning and Zoning — Southgate contracted service (southgateky.org)
2. codelibrary.amlegal.com (Southgate), quoted and re-checked
3. Northern Kentucky Health Department - Septic Systems (2026 county census)
4. 902 KAR 10:110. Issuance of on-site sewage disposal system permits (Kentucky statewide rule), quoted and re-checked
5. § 152.16 State Building Code Adopted (Southgate), quoted and re-checked
6. Division of Plumbing Fee Change and Permit Information (Kentucky statewide rule), quoted and re-checked
7. Water Well Information for Home Owners (Kentucky statewide rule), quoted and re-checked
8. 815 KAR 7:125, Kentucky Residential Code (Kentucky statewide rule), quoted and re-checked
9. codelibrary.amlegal.com (Southgate), quoted and re-checked
10. Southgate City Clerk’s Office (southgateky.org)
11. Campbell County Code sec. 154.277 Building Permits (2026 county census)
12. Northern Kentucky Health Department (nkyhealth.org)
13. 815 KAR 20:130. House sewers and storm water piping; methods of installation (Kentucky statewide rule), quoted and re-checked
14. KRS 511.110 — Unlawful camping (Kentucky statewide rule), quoted and re-checked
15. 815 KAR 20:130. House sewers and storm water piping; methods of installation (Kentucky statewide rule), quoted and re-checked
16. Find Your Flood Zone (Kentucky statewide rule), quoted and re-checked

Written October 12, 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.