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David Olson
Creator of the Cost Index & Permit Dataset
Built permit fee database from primary municipal sourcesBackground in data engineering, ML, and statistical validation
Built this dataset by individually researching published municipal fee schedules, city by city. Every fee links to its source document.
Published Articles (18)
Permit to Replace a Water Heater? Yes, Usually
Jun 14, 2026 · do i need a permit to replace a water heater
Roof Replacement Permit Cost (2026): Real Fees
Mar 28, 2026 · roof replacement permit cost
Building Permit Fees By City In 2026
· building permit fees by city
Fast Track Building Permit: 2026 Costs
Mar 27, 2026 · fast track building permit
How Much Does a Building Permit Cost? 2026 City Fees
· how much does a permit cost
EV Charger Permit Cost (2026): Fees by City
Jun 12, 2026 · ev charger permit cost
Why Check Building Permit Status Before Starting Work
· check building permit status
When Is a Building Permit Not Required? (2026)
Jun 14, 2026 · when is a building permit not required
Building Permit FAQ (2026): Fees, Timelines, Rules
Mar 18, 2026 · frequently asked questions about building permits
Deck Permit Cost: 2026 Rules and Exemptions
Jun 12, 2026 · deck permit cost
Solar Panel Permit Cost (2026): What 48 Cities Charge
Jun 12, 2026 · solar panel permit cost
Permit to Upgrade Electrical Panel? Always Yes
Jun 14, 2026 · do i need a permit to upgrade my electrical panel
Kitchen Remodel Permit Cost: 2026 Price Breakdown
Jun 12, 2026 · kitchen remodel permit cost
HVAC Permit Cost (2026): Real Averages by City
Mar 29, 2026 · HVAC permit cost
Building Permit Violation (2026): Fines + Fixes
Jun 14, 2026 · building permit violation
How to Get Electrical Permit Online: 2026 Costs, Timelines
Mar 26, 2026 · get electrical permit online
How Much Does a Bathroom Remodel Permit Cost in 2026?
Mar 30, 2026 · bathroom remodel permit cost
How Long to Get a Building Permit? (2026)
Jun 14, 2026 · how long does it take to get a building permit