Our mission
Impact fees — the one-time charges municipalities and counties assess on new development to fund infrastructure like water, sewer, transportation, parks, and schools — can add tens or hundreds of thousands of dollars to a project. Yet this information is scattered across thousands of city and county websites, buried in PDFs, ordinances, and resolutions.
We're building the definitive national impact fee directory so anyone evaluating a development site can understand its fee burden in minutes — with every number tied back to an official source.
The impact fee directory
Our directory catalogs impact fee schedules for cities, counties, and special districts across the US. For each jurisdiction we track water and sewer connection fees, transportation/road fees, parks and recreation, schools, fire and police, drainage, and general government fees — broken out by development type (single-family, multifamily, commercial, industrial).
- • Sourced entries link to the official ordinance, resolution, or fee schedule they came from
- • Coverage expands as we research jurisdictions — sourced data is currently strongest in Florida
- • Normalized across categories so jurisdictions can be compared apples-to-apples
How the calculator works
1. Pick the project
Choose the development type — single-family, multifamily, commercial, industrial, or office — and the unit count or square footage.
2. Locate the site
Search an address or drop a pin on the map. We reverse-geocode the coordinates to identify the responsible city and county.
3. See the breakdown
Get a category-by-category fee breakdown. Sourced lines link to the underlying schedule; modeled figures carry a clear “illustrative estimate” label.
Data & methodology
Every lookup prefers sourced data. Where we've researched a jurisdiction, fees come directly from its adopted fee schedule, capital improvement plan, or municipal code — each entry includes the basis (per unit or per square foot) and a link to the source document. Our methodology page explains exactly how both sourced figures and estimates are produced.
If a jurisdiction isn't yet in the directory, the calculator shows a clearly-flagged illustrative estimate instead: fees are modeled from national fee-survey research and recent published fee schedules, adjusted for state construction-cost factors and jurisdiction size. Estimates are stable for a given location but are not adopted rates — always verify with the jurisdiction.
Jurisdictions shown as estimates are added to the research queue — coverage expands every week, and you can request sourced data for any location directly from the calculator.
A note on accuracy
Estimates produced by IMPACTFEES.ORG are illustrative and intended for preliminary feasibility analysis. Always verify final fee calculations with the jurisdiction before relying on them for underwriting, permitting, or closing decisions.