Building permits in Louisville, Kentucky
Of the 13 common home projects we have verified in Louisville, 6 need a permit outright and 6 depend on size or scope. Click any project for the full rule, fee, and how to apply.
By Mario Bailey Last checked · 2 official sources
Verified against official sources- Project types verified
- 13
- in Louisville
One thing Louisville does not make you permit
Worth knowing before you call anyone. Most jurisdictions we cover require all of these.
- Patio Permit
Not required for a ground-level patio
Louisville Metro Develop Louisville, Office of Construction Review (Codes and Regulations)
- 444 S. 5th Street, Louisville, KY 40202
- Phone: (502) 574-3321
- Official permit page
- Permit portal
- Official fee schedule
Look up a permit in Louisville
Louisville runs an online permit portal. Many local portals let you check application status, search permit records, and view inspection results without calling the office.
What needs a permit in Louisville
Of the 13 common home projects we have verified in Louisville, 6 need a permit outright and 6 depend on size or scope. Click any project for the full rule, fee, and how to apply.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Bathroom Remodel Permit | It depends | When adding a bathroom, moving plumbing fixtures, or adding wiring | Metro building permit for a partial alteration: $50 plus $2.50 per $1,000 of estimated... |
| Deck Permit | It depends | area of a freestanding deck; an attached deck always needs a permit | ...(revised 2/6/2024): partial alterations and structures other than buildings are $50... |
| Electrical Permit | Permit required | Any size | ...new service, repairs or additional wiring in a one- or two-family residence is $75... |
| EV Charger Permit | Permit required | Any size | ...(revised 2/6/2024): additional wiring in a one- or two-family residence is $75 for... |
| Fence Permit | It depends | fence height (retaining walls: over 4 feet) | ...(revised 2/6/2024): partial alterations and structures other than buildings are $50... |
| HVAC Permit | Permit required | Any size | ...fees (revised 2/6/2024): 1 & 2 family dwellings, new and replacement systems, $105... |
| Patio Permit | No permit needed | Exempt | Not published |
| Plumbing Permit | Permit required | Any size | ...Section 4): base fee for a one- or two-family residential plumbing permit is $50.00... |
| Pool Permit | It depends | Before installing an in-ground pool, or a raised deck beside an above-ground pool | ...(revised 2/6/2024): partial alterations and structures other than buildings are $50... |
| Roof Replacement Permit | It depends | Only when structural elements such as the roof deck or rafters are replaced | ...(revised 2/6/2024): partial alterations and structures other than buildings are $50... |
| Shed Permit | It depends | floor area of the accessory structure | ...(revised 2/6/2024): partial alterations and structures other than buildings are $50... |
| Solar Permit | Permit required | Any size | Per Metro's solar guide: fees for electrical start at $50 and for simplified building... |
| Water Heater Permit | Permit required | Any size | ...replaced within a single building, the only fee for the plumbing permit is... |
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Louisville permit fees compared with nearby Kentucky localities
| Kentucky locality | Deck Permit | HVAC Permit | Electrical Permit |
|---|---|---|---|
| Louisville | ...and structures other than buildings are $50 plus... | ...2 family dwellings, new and replacement systems, $105... | ...wiring in a one- or two-family residence is $75 for... |
| Lexington | $150), plus the $25 Residential Plan Review Fee | ...Based on Per System": "1st System" $105.00, "Each... | LFUCG electrical page: "Electrical permits cost $10 each."... |
Each cell is the opening clause of that Kentucky jurisdiction's own fee schedule; the full wording and source sit on each permit page.
Louisville penalty for work started without a permit
Louisville publishes what it charges when work begins before the permit, quoted here from the schedule or permit page we verified.
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Starting electrical work before a permit carries a $1,000 penalty for the first offense and $2,000 after.
Louisville electrical permit page · last checked
The Kentucky statute, the after-the-fact permit path and who may pull the permit: building without a permit in Kentucky.
Louisville permit questions, answered from the data
- Do you need a permit in Louisville?
- For most projects, yes. Of the 13 permit types we have verified for Louisville, 6 always require a permit (for example an electrical permit), 6 depend on size or scope (a bathroom remodel permit, for instance), and 1 needs no permit at all in Louisville. Each Louisville permit type's page states the exact rule and its source.
- How much does a permit cost in Louisville?
- Louisville publishes a fee for 12 of the 13 permit types we cover, each quoted on its page from the jurisdiction's own schedule (linked on every page that carries one). Fees are set by Louisville Metro Develop Louisville, Office of Construction Review (Codes and Regulations); we do not estimate or mark them up.
- Where do you apply for a permit in Louisville?
- Louisville Metro Develop Louisville, Office of Construction Review (Codes and Regulations) issues permits in Louisville, with an online portal for applications, plan uploads and status checks, and takes questions at (502) 574-3321. The Louisville official page and portal are linked in the office section above.
- What is the penalty for building without a permit in Louisville?
- Louisville publishes its own charge for work started before the permit: Starting electrical work before a permit carries a $1,000 penalty for the first offense and $2,000 after. That is the local bill; the Kentucky statute, the after-the-fact permit path and who may pull the permit are on the Kentucky building-without-a-permit page.
How the Louisville pages were verified. 13 permit types, 11 distinct official sources, most recently checked . Every rule is read from Louisville Metro Develop Louisville, Office of Construction Review (Codes and Regulations) or the applicable code and cited on its page; anything we could not confirm for Louisville is marked rather than estimated. How we verify.