ADU (Accessory Dwelling Unit) Permit in Louisville (2026)

A ADU (Accessory Dwelling Unit) permit is required in Louisville, KY. The Louisville Metro Planning and Design Services handles permit applications for Louisville. Below you will find the current thresholds, fees, and process for obtaining a adu (accessory dwelling unit) permit in Louisville.

When Is a Permit Required?

When a ADU (Accessory Dwelling Unit) Permit Is Required in Louisville: All ADU construction

Permit Fees

ADU (Accessory Dwelling Unit) Permit Fees in Louisville: $2,000–$8,000. Estimated timeline: 6-10 weeks.

Estimated timeline: 6-10 weeks

How to Get a ADU (Accessory Dwelling Unit) Permit in Louisville

1. 1

   Verify whether your project meets the permit threshold in Louisville: All ADU construction.

2. 2

   Prepare your permit application and plans. Contact the Louisville Metro Planning and Design Services at https://louisvilleky.gov/government/develop-louisville for required documentation.

3. 3

   Submit your application online at https://louisvilleky.gov/government/construction-review or in person at the Louisville Metro Planning and Design Services.

4. 4

   Pay the permit fee: $2,000–$8,000.

5. 5

   Wait for plan check approval. Estimated timeline: 6-10 weeks.

6. 6

   Schedule required inspections through https://louisvilleky.gov/government/construction-review. All inspections must pass before project is finalized.

7. 7

   Important: Louisville Metro building permit required. MSD sewer and LG&E connection fees for independent utilities.

Louisville Metro Planning and Design Services

Frequently Asked Questions