Williamson County
County-wide property tax by city and school-tax district, unincorporated zoning, septic and greenbelt
Williamson County · Unincorporated community
College Grove, Tennessee
An unincorporated community governed by Williamson County, with private club communities nearby
College Grove is an unincorporated community in Williamson County, Tennessee, so Williamson County, not a city, sets its zoning and property tax. The county’s College Grove Village Special Area Plan guides land use and says sewer capacity does not currently exist, so septic and well records matter. Two private club communities, The Grove and Troubadour, are nearby.
In short: College Grove is an unincorporated Williamson County, Tennessee community, so the county sets its zoning and property tax, and the county’s plan says sewer capacity does not currently exist.
Private, strategy-first conversations. Consultation requests do not trigger drip campaigns.
Overview
College Grove at a glance
| Fact | Value | Source |
|---|---|---|
| Status | Unincorporated community in Williamson County (Wikipedia, a secondary source) | Note 1 |
| ZIP code | 37046 (Wikipedia, a secondary source) | Note 1 |
| Who governs land use | Williamson County. The county has a College Grove Village Special Area Plan, adopted under its 2007 Comprehensive Land Use Plan | Notes 2, 6 |
| Village zoning standards | Part of the county zoning ordinance, Article 10, Section 10.02(O) | Note 2 |
| Plan goal for lot size | A 5-acre minimum for residential construction is a goal in the plan; the codified lot size was not verified | Note 3 |
| Sewer | The plan says sewer capacity does not currently exist; the plan is undated in the text reviewed, so confirm the current situation with the county | Note 3 |
| Major road | Highway 31-A (Horton Highway) runs through the village | Note 3 |
| Property tax | No city tax of its own; the county-wide rate is $1.30 per $100 for 2026 (the same as 2025). A Franklin Special School District tax applies only to parcels inside that district. Confirm the parcel’s rates with the Trustee | Notes 10, 11, 12 |
For county-wide rates and rules, see the Williamson County guide. Nearby: Leiper’s Fork and Franklin.
Setting
What is College Grove’s setting?
The county’s special area plan and zoning ordinance shape how land can be used, and two private club communities lie nearby.
- College Grove has no city government. The county identifies College Grove, Leiper’s Fork, Grassland and Triune as special area plan areas (Notes 6, 1).
- Highway 31-A (Horton Highway) is identified in the county plan as a major thoroughfare for eastern Williamson County that runs through the village (Note 3).
- The Grove describes itself as a private, gated club community in College Grove (Note 4).
- Troubadour Golf & Field Club describes itself as a private residential community with an 18-hole golf course. Its site places it between College Grove and Arrington and does not describe it as gated (Note 5).
Local rules
Which rules govern land in College Grove?
Because College Grove is unincorporated, the Williamson County Zoning Ordinance and Subdivision Regulations apply (Note 6).
- The College Grove village zoning standards were created with the community and are part of the county zoning ordinance (adopted May 14, 2012, effective January 1, 2013), Article 10, Section 10.02(O) (Notes 2, 13).
- The plan sets a community goal of a 5-acre minimum for residential construction. That is a plan goal; the actual minimum depends on the parcel’s district, so ask county Planning (Note 3). A local newspaper reported a November 2020 county change from one unit per acre to one unit per five acres in some unincorporated districts (Note 14); see the Williamson County guide.
- The ordinance’s district list includes Agricultural (A), Rural (R), Estate (E), Suburban (S) and Village (V) districts, and its resource-protection article includes historic and cultural resource standards (Note 7).
- The ordinance also includes a flood hazard article tied to the National Flood Insurance Program, and an article on non-traditional wastewater systems that refers to the county’s on-site sewage regulations (Note 7).
The ordinance copy reviewed was a 2023-dated secondary copy. Confirm the current text and the parcel’s district with Williamson County Planning.
Due diligence
What should you check before buying in College Grove?
| Check | Why it matters here | Source |
|---|---|---|
| Zoning district and plan | The parcel’s county district and the village standards decide what can be built and how land can be divided | Note 2 |
| Septic and well records | The plan says sewer capacity does not currently exist (the plan is undated in the text reviewed). Tennessee requires a septic permit, and the county’s sewage department enforces local rules. Ask for the permit, system type and service history | Notes 3, 8, 9 |
| Flood status | The county ordinance has a flood hazard article. Check the address on FEMA’s map service and ask for any elevation certificate | Note 7 |
| Subdividing or adding a dwelling | County subdivision regulations apply to dividing land in unincorporated areas | Note 6 |
| Club membership | The Grove and Troubadour each have their own membership terms, separate from the home purchase. Ask the club directly | Notes 4, 5 |
| Tax bill | No city tax applies. The county-wide rate is $1.30 per $100 for 2026; a parcel inside the Franklin Special School District tax district would pay an additional district rate. Confirm the parcel’s rates with the Trustee | Notes 10, 11 |
This is a checklist, not advice. Confirm each item with Williamson County and your attorney.
Comparison
How does College Grove compare with nearby places?
| Community | Setting | How it differs |
|---|---|---|
| Leiper’s Fork | Another unincorporated community with a county special area plan | Its plan centers on a historic village; College Grove’s centers on a village where the plan says sewer capacity does not currently exist |
| Franklin | City to the northwest | City zoning, city tax and city utilities, against county rules in College Grove |
| Thompson’s Station | Town to the west | A town with its own Land Development Ordinance and city tax |
Working with ABODE
How does ABODE help in College Grove?
On acreage, the due diligence is the land: zoning district, septic and well, flood and survey. ABODE International Realty LLC is licensed in Tennessee (Real Estate Firm 263936), and its Murfreesboro office lists College Grove as a service area. Conversations are private.
Keep reading
Which related guides should you read next?
Leiper’s Fork
An unincorporated village with a National Register historic district
Franklin
The county seat, with its own rate and a Franklin Special School District tax district
Thompson’s Station
A town with its own Land Development Ordinance and transect zoning
Nolensville
A town with a 2023 zoning ordinance and its own tax rate
Questions
College Grove real estate: frequently asked questions
Is College Grove a city?
No. College Grove is an unincorporated community in Williamson County, Tennessee, so the county sets its zoning and property tax. Wikipedia lists its ZIP code as 37046; the county’s College Grove Village Special Area Plan guides land use there.
Does College Grove have public sewer?
The county’s College Grove plan says sewer capacity does not currently exist, but the plan is undated in the text reviewed. Ask the county whether public sewer is available at a specific property, and ask for any septic permit and service history.
What are The Grove and Troubadour?
The Grove describes itself as a private, gated club community in College Grove. Troubadour Golf & Field Club describes itself as a private residential community with an 18-hole golf course, between College Grove and Arrington. Membership terms are each club’s own.
What zoning applies in College Grove?
Williamson County zoning applies, including village standards in Article 10, Section 10.02(O) of the county ordinance. The plan has a 5-acre minimum for residential construction as a goal, not a verified codified lot size, so check the parcel’s actual district with county Planning.
What property tax applies in College Grove?
There is no city tax. The county-wide rate is $1.30 per $100 of assessed value for 2026 (the same as 2025), and residential property is assessed at 25% of appraised value. A Franklin Special School District tax applies only to parcels inside that district. Confirm a parcel’s rates with the County Trustee.
Does ABODE International Realty work in College Grove?
ABODE International Realty LLC is licensed in Tennessee as Real Estate Firm 263936, and its Murfreesboro office lists College Grove among its service areas. Request a consultation to discuss a purchase or sale.
Private consultation
Request a private College Grove consultation
Tell us what you are weighing. An ABODE advisor replies privately. We aim to reply within one business day.
Sources and notes
- College Grove, Tennessee (Wikipedia). Secondary source for its status as an unincorporated community and for ZIP code 37046. Census place figures were not available, so no population is shown. Checked October 5, 2026.
- Williamson County: College Grove Village Special Area Plan. The county’s community plan for College Grove, resulting from the 2007 Comprehensive Land Use Plan. Checked October 5, 2026.
- Williamson County: College Grove plan, 5-acre goal. A plan goal, not a verified codified lot size. Checked October 5, 2026.
- The Grove (official site). The Grove describes itself as a private, gated club community in College Grove. Membership terms are the club’s own. Checked October 5, 2026.
- Troubadour Golf & Field Club (official site). Describes itself as a private residential community with an 18-hole golf course. Its site says it lies between College Grove and Arrington and does not use the word “gated”. Checked October 5, 2026.
- Williamson County: Regulations and Plans. The county names four special area plans: College Grove, Leiper’s Fork, Grassland and Triune. Checked October 5, 2026.
- Williamson County Zoning Ordinance (2023-dated copy hosted by Tranzon). Secondary copy of the ordinance. Minimum lot sizes were not shown in the text reviewed, and later amendments are not captured. Use the county’s own current ordinance. Checked October 5, 2026.
- Tennessee Department of Environment and Conservation: septic system permits. A Septic System Construction Permit is required statewide. Checked October 5, 2026.
- Williamson County: onsite sewage disposal regulations (county document). The county Department of Sewage Disposal Management administers onsite regulations under the Board of Health. Checked October 5, 2026.
- Williamson County: how property taxes are set and billed. The county and each city or town set their own rates; the Trustee bills. Checked October 5, 2026.
- Williamson County: 2026 property tax rates and calculator (county page). The county-wide rate is $1.30 per $100 for tax year 2026, with a separate Franklin Special School District additional tax inside that district. Checked October 5, 2026.
- Williamson County: 2025 property tax rates (county document). The county-wide rate was $1.30 per $100 for tax year 2025. Checked October 5, 2026.
- Williamson County: Zoning Ordinance. States the ordinance’s adoption (May 14, 2012) and effective (January 1, 2013) dates. The county says its online copy is a convenience and not a legal document. Checked October 5, 2026.
- Williamson Herald: county passes zoning changes to decrease development. Secondary news report of the November 2020 change to one unit per five acres in some unincorporated areas. Confirm the district and current rule with county Planning. Checked October 5, 2026.