Permit records
Williamson County permit search
Williamson County permit records are public. The jurisdiction publishes them through an online record search.
By Mario Bailey Last checked · 10 official sources
- Project types verified
- 10
- in Williamson County
- Search verified
- 12 Jul 2026
- we opened it ourselves
Search Williamson County permit records
The county's Electronic Plan Review portal has a public projects search; full record access requires sign-in.
Open the Williamson County record searchApplying rather than searching? Use the Williamson County permit portal
We opened this address ourselves on . Official government links only, and we check them on a schedule.
If the permit does not turn up
Older permits are often missing from online records, and a permit filed under a contractor's name will not surface in an address search that expects the owner. Williamson County Building Codes Department can check the paper file.
- 1320 West Main Street, Suite 400, Franklin, TN 37064
- Phone: 615-790-5718
- Official permit page
- Official fee schedule
What needs a permit in Williamson County
Every project type we have verified in Williamson County, with the rule, the threshold, and the fee that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Deck Permit | Permit required | Not specified | Deck permits follow the county's general building permit valuation table: no fee for... |
| Electrical Permit | Permit required | Not specified | State-issued via the TN CORE system: a $5 issuing fee plus ampere-based inspection fees... |
| Fence Permit | Not confirmed | Not specified | No fence-specific line |
| HVAC Permit | Permit required | Not specified | Mechanical Permit Fee Schedule: $10.00 permit fee plus $10.00 for the first $1,000 of... |
| Patio Permit | Not confirmed | Not specified | No patio-specific line |
| Plumbing Permit | Permit required | Not specified | Plumbing Permit Fee Schedule: $10.00 for issuing each permit, plus $5.00 for water and... |
| Pool Permit | It depends | Swimming pools designed or able to hold water more than 30 inches deep in unincorporated Williamson County require a building permit; pools designed to hold 30 inches of water or less, temporary pools, above-ground pools with no permanent filter system or decking, and pools not left up year-round are exempt from the permit requirement. | No pool-specific line |
| Roof Replacement Permit | No permit needed | Not specified | No permit or fee |
| Shed Permit | Not confirmed | Not specified | No shed-specific line |
| Solar Permit | Not confirmed | Not specified | The structural mounting permit bills under the Section B101 valuation table starting at... |
Everything we have verified about permits in Williamson County