Across 82 permits filed since 2025-04-24, the median is $23,950; half of projects fall between $10,000 and $183,978. Figures are permit valuations reported to building departments. National cost guides answer this question with averages from other markets; these numbers are what homeowners in Orange County, NY actually reported when they pulled permits.
Recent filings
- ONE FAMILY RESIDENCE WITH UNFINISHED BASEMENTTown of Warwick · 2026-10-23$458,000
- FINISHED BASEMENT TO INCLUDE A CRAFT ROOM, FULL BATHROOM, KITCHEN AND MEDIA ROOM. EXTEND EXISTING DECK APPROXIMATELY 14' X 12'Town of Warwick · 2026-10-23$50,000
- ONE-FAMILY DWELLING WITH UNFINISHED BASEMENT.Town of Warwick · 2026-10-22$550,000
How to read these numbers
Permit valuations are the project cost the applicant reports to the building department. They skew slightly low — nobody rounds up for the permit fee — and scope varies, so the middle-half range is the honest picture: half of all basement finishing permits in Orange County, NY came in between $10,000 and $183,978. We exclude permits under $1,000, jobs filed as whole-house construction, and counties whose building departments don't reliably report valuations.
Same project, other places
Basement finishing in New YorkBasement finishing in ConnecticutBasement finishing on Long Island