Do you need a permit for your project?
Find out in 60 seconds. Free for any city in the US.
How it works
Get your answer in three simple steps
Enter your zip code
We'll identify your city and building department so we can check the right rules.
Select your project
Choose from 15 project types and answer a few quick questions about your specific plans.
Get a clear answer
See whether you need a permit, estimated fees, timelines, and your building department's contact info.
Popular cities
Check permit requirements in these cities and more
Frequently asked questions
Yes! Our basic permit lookup is completely free. You can check whether your project needs a permit, see estimated fees and timelines, and get building department contact info at no cost. We also offer a Pro Report with additional details for $7.99.
Our data is researched from official building codes and verified against local building department information. We show the verification date and confidence level for every result. However, requirements can change — always confirm with your local building department before starting work.
If we don't have specific local rules for your city, we'll show results based on the International Residential Code (IRC) that most US cities follow. We'll clearly indicate when a result is based on the baseline code rather than your specific local rules.
It depends on the project. Many small projects like painting, replacing faucets, or building a small shed are exempt. But larger projects like room additions, electrical panel upgrades, or in-ground pools almost always require permits. Doing unpermitted work can lead to fines, having to tear out work, and problems when selling your home.