Permit Checklist

Find out which permits your home project likely needs, with estimated costs, processing times, and required inspections.

Permit Checklist
Permit Details by Type
Building Permit:Likely Required
Estimated Cost: $500.00
Processing Time: 515 business days
Required Inspections: Foundation, Framing, Insulation, Final
Est. Total Permit Cost
$1,250.00
$750 required + $500 possible
Permits Needed
2 required, 2 possible
11 total inspections expected
Est. Processing Time
5–15 days
Business days (permits may run concurrently)
Purchase OptionQuantityEst. Cost
Building PermitBest valueLikely Required$500.00
Electrical PermitBest valueLikely Required$250.00
Plumbing PermitMay Be Required$250.00
Mechanical PermitMay Be Required$250.00
Plan for $1,250.00 in permit feesYour Room Addition project likely requires 2 permit(s). Apply early — processing times vary by jurisdiction and can delay your start date.
Unpermitted work carries serious risksWorking without required permits can result in fines of $500–$5,000+, forced removal of completed work, homeowner insurance claim denials, and significant problems when selling your home. Many buyers and lenders require proof that major work was properly permitted. Always verify requirements with your local building department.
Permit requirements and fees vary significantly by city, county, and state. This tool provides general guidance — always contact your local building department for exact requirements, fees, and timelines before starting any project.