Room Addition Permit in Louisville (2026)
Room Addition permit requirements, fees, and process for Louisville, KY. Find out if you need a permit and how to apply.
Yes, a Room Addition permit is required in Louisville, KY.
A Room Addition 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 room addition permit in Louisville.
When Is a Permit Required?
When a Room Addition Permit Is Required in Louisville: All structural additions
Permit Fees
Room Addition Permit Fees in Louisville: Based on value — typically $800–$4,500. Estimated timeline: 4-8 weeks.
Estimated timeline: 4-8 weeks
How to Get a Room Addition Permit in Louisville
Verify whether your project meets the permit threshold in Louisville: All structural additions.
Prepare your permit application and plans. Contact the Louisville Metro Planning and Design Services at https://louisvilleky.gov/government/develop-louisville for required documentation.
Submit your application online at https://louisvilleky.gov/government/construction-review or in person at the Louisville Metro Planning and Design Services.
Pay the permit fee: Based on value — typically $800–$4,500.
Wait for plan check approval. Estimated timeline: 4-8 weeks.
Schedule required inspections through https://louisvilleky.gov/government/construction-review. All inspections must pass before project is finalized.
Important: Louisville Metro building permit required. Setbacks and lot coverage must comply with LDC.
Louisville Metro Planning and Design Services
Phone: See official source
Website: https://louisvilleky.gov/government/develop-louisville
Online Permits: https://louisvilleky.gov/government/construction-review
Hours: See official source
Frequently Asked Questions
Source: Louisville Building Code — Room Addition Requirements. Last verified April 6, 2026. View source