Building permit checklist – step by step
From zoning check to certificate of occupancy: drawings, plan review, fees, inspections and how long permits last.
Reading time about 6 minutes
The steps
Plan review for a simple residential project often takes 2–8 weeks, longer in big cities.
What usually needs a permit
New houses, additions, ADUs, structural changes, decks above a certain height, and most electrical, plumbing and mechanical work. Painting, flooring and cabinets usually do not.
Inspections
The building department inspects in stages – typically footing, foundation, framing, rough electrical/plumbing/mechanical, insulation and final. You may not cover work before it is approved.
Frequently asked questions
What does a permit cost?
Fees are set locally, often based on project valuation or square footage. Small residential projects commonly range from a few hundred to a few thousand dollars.
Codes and zoning vary by state, county and city. Always check with your local building department and HOA before you build.