Building Permit Fee Calculator

Most jurisdictions use one of two methods: valuation-based ($7-$12 per $1,000 of construction value - example: $50,000 kitchen remodel at $9/$1,000 = $315-$585 permit) or flat-fee for small projects (deck $75-$350, fence $50-$200, simple electrical $100-$400, roof replacement $150-$500). High-cost states (CA, NY, WA, MA, NJ, HI, DC, CT, MD, OR) add a fixed 60% to the fee. Always add separate plan-review fee ($100-$500) and inspection fee ($50-$150 per inspection).

No, but the list of exempt work is narrower than people think. Generally exempt: paint, wallpaper, flooring, cabinet refacing, fixture replacement (same location), countertops (no plumbing change), siding (sometimes), windows (sometimes - check local). Generally required: structural changes, electrical above repair, plumbing rough-in, HVAC replacement, decks over 30" or 200 sq ft, additions, pools, fences over 6'-7', solar, water heater (most jurisdictions). When in doubt, call building department - they answer free.

Three real consequences: (1) Resale disclosure - most states require disclosure of unpermitted improvements; buyers can negotiate price reductions or demand retroactive permitting (often more expensive than original); (2) Insurance claims - unpermitted work in the damage area may void the entire claim; (3) Code enforcement - if discovered (via complaint, inspection, or resale), you may be forced to expose work for inspection, pay penalty fees (often 2-4× original permit cost), or remove/redo the work. Don't skip permits to save $300.

Yes in most jurisdictions, but it's painful: the work must be exposed for inspection (drywall removal, etc.), all current code must be met (not just code from when work was done), penalty fees typically 2-4× original permit cost, and inspector may require additional engineering or specifications. Cost: $1,500-$8,000 for typical retroactive bathroom/kitchen work. Plan: get pre-purchase home inspection that flags unpermitted work BEFORE buying, then negotiate seller to permit before closing.

For structural projects, yes: kitchens, baths, additions, large decks and pools always require it. Specialty work (swapping a panel, installing a water heater) often skips it or charges a reduced fee. The plan-review fee usually runs 25-65% of the permit fee and is added on top of it, so budget for both.

Simple permits (electrical, plumbing, roofing) are often approved same-day over the counter. Projects that need plan review take 2 to 8 weeks depending on the jurisdiction. Historic districts or coastal zones can stretch to 12 weeks or more.