What Are Louisiana Impact Fees?
Louisiana funds growth infrastructure primarily through home-rule parish and municipal charges: sewer and water tap or capacity fees, drainage impact fees in flood-prone parishes, and traffic mitigation in high-growth corridors. There is no comprehensive statewide impact fee act, so authority and practice vary parish to parish.
Drainage and wastewater dominate — especially across the Baton Rouge and New Orleans metros where capacity is constrained. Louisiana figures on impactfees.org are model estimates calibrated to parish size and state cost factors; confirm each parish's utility and drainage schedules locally.
Louisiana 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.
Parishes Covered
Our calculator covers all 64 Louisiana parishes:
Click any parish to open the calculator pre-loaded with that jurisdiction.
Major Louisiana Markets
Click any market to open the calculator pre-loaded with that city.
New Orleans / Orleans & Jefferson
S&WB capacity charges and drainage requirements lead one-time costs.
Baton Rouge / East Baton Rouge & Ascension
Ascension Parish growth carries sewer and traffic impact charges.
Lafayette / Lafayette
LUS connection charges shape Acadiana development budgets.
Shreveport / Caddo & Bossier
Utility tap fees dominate; formal impact fees are limited.
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 Louisiana.
- We identify the jurisdiction — City, parish, 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.