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How Much Does a Building Permit Cost?

Building permit costs range from $400 to $50,000+ depending on project type, location, and valuation. Here’s what to expect and how to reduce your costs.

Landon Reid Founder, Buildability™Updated 7 min read

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Permit costs depend on project scope, location, and construction valuation, and each city sets its own fee schedule; no national range is on record here. The biggest cost is often not the permit itself — it’s the time it takes to navigate the process.

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What Determines Building Permit Cost?

Many cities use a valuation-based fee schedule: the fee rises with the estimated construction cost of the work. Beyond the base fee, expect plan review fees, inspection fees, and impact fees that can exceed the permit itself. The city's published schedule is the record; pull it before you budget.


What Drives the Fee by Project Type?

Project TypeWhat drives the fee
ADUValuation and size; some states cap or waive ADU impact fees
Room AdditionSquare footage and structural changes
New Construction (SFR)Valuation, plan review, and impact fees
Kitchen/Bath RemodelTrades involved; higher if moving plumbing
Deck/PatioOften a flat fee
Re-RoofOften a flat fee

Why Do Cities Differ So Much?

Fee schedules, school and impact fees, and review backlogs are set city by city. Some cities add steps of their own: New York's Department of Buildings filings are commonly handled by an expediter, and Houston has no zoning code but still applies deed restrictions and flood requirements. Ask each building department for its fee schedule and its published review times.


How Can I Reduce Permit Costs?

  1. Know requirements before you apply — incomplete applications trigger resubmission fees. Check your zoning first.
  2. Use pre-approved plans — where a city offers them, they cut review time and fees
  3. Check for fee waivers — some states, California among them, limit impact fees on smaller ADUs; ask the city which apply
  4. Get your Buildability™ Report first — a one credit report tells you what’s allowed before you engage a consultant

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