Building codes & permits for every U.S. jurisdiction — national to city.
Permit Helper
National · State · County · City

Every code that applies. Anywhere you build.

Tell us where you're working and what you do. Permit Helper returns every building code, energy code, and permit that governs your project — from the federal baseline down to your city's own amendments — each with a plain-language summary and an official source.

50 + DC
States
3,143
Counties
19,517
Cities
6
Federal mandates
11
Trades

Plan a specific project

Answer a few quick questions and we'll tailor the exact permits, trades, and fee gotchas to the location you chose above.

Built for homeowners figuring out what their project needs — and the building departments that guide them.

How the rules stack up where you build

Every jurisdiction inherits the layers above it. We assemble all four for your exact location.

1

National

Federal mandates (OSHA, ADA, EPA lead-safe) and the model codes states adopt from.

2

State

The building & energy codes your state has adopted, plus trade licensing law.

3

County

County-level amendments, land-use, and permitting where they apply.

4

Your city

Local code amendments, the city zoning code, and city permits & procedures.