What Are Connecticut Impact Fees?
Connecticut has no general impact fee enabling statute. Towns fund growth through sewer benefit assessments and connection charges (Conn. Gen. Stat. ch. 103), water utility charges, and open space or parkland dedication requirements adopted through subdivision regulations. Some towns also negotiate infrastructure contributions during zoning approvals.
Costs concentrate in sewer and water availability rather than formal impact fees, and vary town by town across the state's 169 municipalities. Connecticut figures on impactfees.org are model estimates for early budgeting — verify sewer assessments and connection charges with each town's WPCA and utility.
Connecticut figures are illustrative estimates from our statewide cost model — calibrated to local construction costs and community size — rather than verified fee schedules. Use them for early budgeting and site comparison, and see our methodology for how estimates are built.
Counties Covered
Our calculator covers all 8 Connecticut counties:
Click any county to open the calculator pre-loaded with that jurisdiction.
Major Connecticut Markets
Click any market to open the calculator pre-loaded with that city.
Stamford / Fairfield
High land costs pair with sewer connection and parkland requirements.
Bridgeport / Fairfield
Redevelopment sites face WPCA connection and assessment charges.
Hartford / Hartford
MDC water and sewer charges shape one-time costs in the capital region.
New Haven / New Haven
University-area infill carries sewer connection and utility charges.
How the Calculator Works
- Pick your development type — Single-family, multifamily, commercial, industrial, or office.
- Search or pin your site — Enter an address or drop a pin anywhere in Connecticut.
- We identify the jurisdiction — City, county, and state are resolved automatically.
- Get an instant breakdown — Water, sewer, road, park, school, and fire fees by category — verified where researched, clearly-labeled estimates where not.