Building Permit Cost Calculator

Estimate typical building permit fees by project type, project value, and city size.

$
🧮

Enter your values and click Calculate

Almost every substantial home project — reroofing, decks, additions, electrical and plumbing work, remodels that touch structure — requires a building permit, and the fee is a real line item that budgets routinely forget. This calculator estimates a typical permit fee range from your project type, project value, and the size of your municipality. It blends the two fee structures cities actually use: flat or tiered fees for common small projects (a roof permit in most towns is a fixed one-to-low-three-figure charge) and valuation-based fees for larger work, where the fee is computed as a fraction of the declared project value — which is why a $400,000 new build pays far more than any flat schedule. Larger jurisdictions tend to charge more, so a city-size multiplier adjusts the range. Treat the output as orientation, not a quote: permit fees are set independently by each of the thousands of US municipalities, and identical projects can be charged very differently across a county line. Your city or county building department publishes its exact fee schedule, and the permit desk will quote precisely from your project valuation.

How It Works

The estimate combines the two fee structures municipalities use. Small, common projects are usually charged flat or tiered fees, represented here by typical 2026 ranges: roofs $150–500, decks $100–500, fences $40–150, electrical or plumbing work $50–350, interior remodels $300–1,500, additions $600–2,500, and new construction $1,000–5,000. Larger projects are typically charged on declared valuation instead, most commonly landing between 0.5% and 2% of project value — so the calculator takes whichever is higher, the flat range or the valuation-based figure. A city-size multiplier (×0.8 small towns, ×1.3 major metros) reflects that big-city fee schedules generally run higher. It must be said plainly: permit fees vary widely by municipality — the same deck can cost $75 to permit in one town and $400 in the next — and separate plan-review, inspection, and impact fees may apply on larger projects. This tool brackets the typical case; your building department's fee schedule is the authoritative source.

Most permitted projects can be tracked through your city — you can check permit requirements and status for major cities free at ClearedNo.

Examples

Roof replacement, $12,000, mid-size city
A standard asphalt reroof on an average home.
Result: Typical permit fee $150 – $500.
Home addition, $80,000, major metro
A valuation where percentage-based schedules start to matter.
Result: Typical permit fee $780 – $3,250, plus likely plan-review charges.
New construction, $400,000, small town
Valuation-based fees dominate at this scale even in low-fee jurisdictions.
Result: Typical permit fee $1,600 – $6,400, driven by the 0.5–2% valuation basis.

Frequently Asked Questions

Who is responsible for pulling the permit — me or my contractor?
Either can, but who does matters. When the contractor pulls the permit, they are on record as the responsible party for code compliance and inspections — which is what you want. A contractor who asks the homeowner to pull an owner-builder permit for work the contractor performs is shifting liability onto you, and it's a recognized red flag (sometimes it means they're unlicensed in that jurisdiction). Reputable contractors include permit costs in their bids and handle the process.
What happens if I skip the permit?
Unpermitted work surfaces at the worst times: home sales (buyers' inspectors and title searches flag it, and you must disclose known unpermitted work in most states), insurance claims (insurers can deny claims tied to unpermitted systems), and city complaints (stop-work orders and fines). Retroactive permits typically cost two to four times the normal fee and may require opening finished walls for inspection. The Unpermitted Work Cost Calculator on this site estimates that downside for your specific project.
Do small projects like fences and water heaters really need permits?
Often, yes — requirements are more inclusive than most homeowners expect. Fences above a height threshold (commonly 6–7 ft, lower in front yards), water heater replacements, electrical panel work, new outlets and circuits, and structural changes of any size commonly require permits. Cosmetic work — paint, flooring, cabinets, fixture swaps in the same location — generally doesn't. The threshold logic varies by jurisdiction, so check before assuming either way.
Why do identical projects have wildly different permit fees?
Because fee schedules are set locally, by thousands of independent building departments, under different cost-recovery philosophies. Some price permits near administrative cost; others fund the whole inspection department from fees; some add impact fees, technology surcharges, or state training levies. Valuation-based schedules also differ in their percentage tiers and in how they verify declared value. There is no national standard — which is why this calculator reports a range and defers to your local schedule.
Does the permit fee include inspections?
Usually the base permit includes the standard inspection sequence (footing, framing, rough-in, final — as applicable to the project). You typically pay extra for re-inspections after failed inspections, work performed before permit issuance, or expedited review. Plan review, where required, is commonly billed separately at 25–65% of the permit fee — budget for it on additions, structural remodels, and new construction.

Related Calculators

home🧮

Unpermitted Work

Estimate what unpermitted work can cost when it's discovered — fines, retroactive permits, and resale or insurance impact.

Calculate →
home🧮

Home Addition Cost

Estimate the cost of adding square footage to your home based on size and addition type.

Calculate →
home🧮

Roof Replacement Cost

Estimate the cost of replacing your roof based on size, material, and pitch.

Calculate →
home🧮

Deck Cost

Estimate the cost of building a new deck based on size and material choice.

Calculate →