Building permits, zoning and septic in Town of Nolensville, Tennessee

At a glance

Building permit

Required for new residential construction; apply to the town through GeoCivix¹

Zoning

Town zoning applies inside Nolensville limits²

Building codes

Town adopted the 2024 I-Codes⁵

Septic

Williamson County Department of Sewage Disposal Management³

Building height

Depends on the applicable zoning district standards⁶

RV and tiny-home living

We could not confirm occupancy permissions; ask Town Planning⁴

Who to call

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Do you need a building permit in Town of Nolensville, TN?

Nolensville requires a town building permit for new residential construction, submitted through GeoCivix.¹ Nolensville adopted the 2024 I-Codes in 2025, so use the town’s code requirements when preparing a home design.⁵ The residential building application includes plumbing, mechanical, sprinkler and deck work.⁷ A complete application goes to the Building Official, Town Engineer and Town Planner for approval; an erosion-control inspection must pass and payment must process successfully before the building permit is issued.¹ Residential construction also requires inspections requested through GeoCivix.⁸

Who handles building permits and zoning in Town of Nolensville?

The Town of Nolensville Building Codes Department is the office for town building-code and building-permit questions; its building page links to the GeoCivix application portal.⁷ For zoning questions or a planning meeting, contact the Town Planning Department at (615) 776-6704 or [email protected].⁴ Since June 2026, town planning requests and applications go through GeoCivix.⁴ Town building and zoning review does not transfer septic administration to the town: onsite systems remain with Williamson County Department of Sewage Disposal Management.²³

Does Town of Nolensville have zoning, and can you live in an RV or tiny home?

Nolensville’s zoning ordinance governs development, land use, buildings and lots inside town jurisdiction.² Building height must follow the applicable district-standard table, rather than a single townwide height limit.⁶ Subdividing or re-subdividing land generally requires compliance with the ordinance, zoning map and a reviewed and certified development plan, subject to the ordinance’s exemptions.⁹ Before choosing a parcel, ask Town Planning to identify the zoning district and the lot-area and setback standards for your proposed home.⁴ We could not confirm permission for RV living, temporary camping, tiny homes, manufactured homes or accessory dwellings; ask Town Planning about the proposed use and duration before committing to land.⁴

How do septic permits work inside Town of Nolensville?

Williamson County Department of Sewage Disposal Management administers individual onsite septic systems throughout the county, including land inside Nolensville.³ The county determines the appropriate system type for each property and requires a valid Construction Permit and Permit to Install before applicable construction or installation, with qualifying exemptions.³ Tennessee requires septic approval before dirt work or construction, including the building pad; Williamson County is a contract county where septic packages are submitted directly to the county.¹⁰¹¹ Call Sewage Disposal Management at (615) 790-5751 about site approval, installation and inspection procedures.¹² Williamson County’s soil data rate only 14.1% of soils “not limited” for conventional drain fields; that countywide screening figure calls for a site evaluation and does not mean septic is impossible.¹³

Building a home in Town of Nolensville: what are the steps?

1. Ask Town Planning to confirm the intended land use and applicable district standards before finalizing a design.²⁴
2. Resolve wastewater service: contact the county for septic approval before dirt work, or follow the town application’s direction to contact Nolensville/College Grove Utility District and Metro Sewer about water and sewer tap fees.¹⁰⁷
3. Submit the residential building application through GeoCivix, including plot and erosion-control plans, contractor licensing and insurance documents, and evidence of paid county privilege tax and water and sewer tap fees.¹⁷
4. Complete town review, pass the erosion-control inspection and pay the building-permit fees before issuance.¹¹⁴
5. Request required residential inspections through GeoCivix; the town no longer accepts inspection requests by email.⁸⁷
6. Obtain the certificate of occupancy after building, mechanical, plumbing, sprinkler, engineering and planning final inspections pass.⁷

What should you check before buying land in Town of Nolensville?

Confirm whether the parcel is inside Nolensville: the town zoning rules apply within its jurisdiction, while Williamson County’s guide covers the county’s building and zoning requirements for unincorporated land.²¹⁵¹⁶ For mapped flood hazards inside town limits, Tennessee directs buyers to the municipal floodplain administrator; ask Town Planning to connect you with that role before planning grading or construction.¹⁷⁴ A driveway built, modified or changed in use on state highway right-of-way requires a TDOT permit; that does not establish the rule for every town street.¹⁸ Tennessee’s agricultural exemption from county zoning does not apply to municipalities, so a farm use is not a basis for bypassing Nolensville zoning.¹⁹

Watch-outs

• Nolensville’s RV and tiny-home occupancy permissions remain unconfirmed; ask Town Planning before buying a parcel for either use.⁴
• Williamson County posts notice of proposed amendments to sewage-disposal regulations; ask Sewage Disposal Management which requirements apply when you submit a septic application.¹²
• A state owner-builder licensing exemption does not waive Nolensville’s residential building-permit requirement; ask Building Codes which owner-builder documents the town accepts.²⁰¹

Sources

1. Building in Nolensville (Town of Nolensville), quoted and re-checked
2. Nolensville Zoning Ordinance, § 4.3.9 Uses (Town of Nolensville), quoted and re-checked
3. Sewage Disposal, quoted and re-checked
4. Town of Nolensville Planning Department (nolensvilletn.gov)
5. Building Codes (Town of Nolensville), quoted and re-checked
6. Nolensville Zoning Ordinance, § 4.3.5 Building Standards (Town of Nolensville), quoted and re-checked
7. Town of Nolensville Building Codes Department (nolensvilletn.gov)
8. Building in Nolensville (Town of Nolensville), quoted and re-checked
9. Nolensville Zoning Ordinance, § 8.5.6 Development Plan Review (Town of Nolensville), quoted and re-checked
10. Septic System Construction Permit (Tennessee statewide rule), quoted and re-checked
11. Septic System Construction Permit (Tennessee statewide rule), quoted and re-checked
12. Williamson County Department of Sewage Disposal Management (williamsoncounty-tn.gov)
13. 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
14. Building in Nolensville (Town of Nolensville), quoted and re-checked
15. Zoning, quoted and re-checked
16. Williamson County, Tennessee Zoning Ordinance, quoted and re-checked
17. Statewide Floodplain Administrator Directory (Tennessee statewide rule), quoted and re-checked
18. Highway Entrance Permits (Tennessee statewide rule), quoted and re-checked
19. Exemption from County Zoning Regulation for Buildings on Land Used for Agriculture, Opinion No. 22-07 (Tennessee statewide rule), quoted and re-checked
20. Residential Permit FAQs, quoted and re-checked

Written October 11, 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.