Impact Fee Schedule Calculator

Impact fees fund infrastructure needed for new development.

Units

School fee per unit

Park fee per unit

Road fee per unit

Water/sewer fee per unit

Total impact fees

$2,400,000

Per-unit total

$20,000

Fees as % of $250k unit cost

0.08%

How the math works

Per-unit = school + park + road + utility. Total = per-unit × units.

$8.5k + $1.8k + $3.5k + $6.2k = $20k/unit × 120 = $2.4M total impact fees.

How to Use

Enter number of units.
Enter per-unit school fee.
Enter per-unit park fee.
Enter per-unit road fee.
Enter per-unit water/sewer fee.
Read total impact fees.

Frequently Asked Questions

Typical impact fees?

School: $2k-15k/unit. Parks: $500-3000. Roads: $1500-6000. Water/sewer hookup: $3k-12k. Fire/police: $300-1500. Total: $7k-40k/unit commonly. Suburban greenfield often higher than infill urban.

Fee timing?

Usually due at building permit issuance. Some jurisdictions allow payment at CO (certificate of occupancy) — better for construction cash flow. Large projects often negotiate phased payments or development agreements.

Waivers/reductions?

Affordable housing: waiver or reduced rate (40-100% off). Senior housing: reduced rate. Non-profit: potential waiver. Redevelopment vs greenfield: often credits for prior use. Negotiate at planning stage.

How often should I rerun this?

Rerun this calculator whenever inputs change materially — new rent roll data, rate moves, loan balance updates, or quarterly operating data. For active deals, monthly refresh is typical. For stabilized assets under monitoring, quarterly is fine. Treat the output as a decision tool, not a one-time answer — market conditions evolve and so should your analysis.