Across 32 permits filed since 2025-01-25, the median is $10,000; half of projects fall between $5,750 and $15,500. 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 Rockland County, NY actually reported when they pulled permits.
Recent filings
- DECK - Remove existing deck boards, Reinforce and repair existing framing as required, Install new Trex composite decking, Simpson strong-tie connectors where required, new composite fascia, new guard rails and stair componentsTOWN OF STONY POINT · 2026-07-17$10,000
- DECK - Remove existing 4x12 deck and install 10fitx12ft deck with stairTOWN OF STONY POINT · 2026-07-10$8,000
- DECKTOWN OF STONY POINT · 2026-07-08$6,000
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 deck permits in Rockland County, NY came in between $5,750 and $15,500. We exclude permits under $1,000, jobs filed as whole-house construction, and counties whose building departments don't reliably report valuations.