Across 69 permits filed since 2025-03-10, the median is $13,200; half of projects fall between $7,800 and $50,000. Figures are permit valuations reported to building departments. National cost guides answer this question with averages from other markets; these numbers are what homeowners on Long Island actually reported when they pulled permits.
Recent filings
- DIRECT REPLACEMENT OF DECK **NO STRUCTURAL WORK PERMITTED**City of Long Beach · 2026-09-04$7,800
- REPAINT STUCCO, REPAIR DECK WITH NEW RAILINGS/BOARDS, REPLACE FRONT RAILINGS **NO PLUMBING OR ELECTRICAL WORK PERMITTED**City of Long Beach · 2026-09-04$18,000
- REPLACE ON WHALER BULKHEAD,REPLACE DECKING ON DECK,REFACE BULKHEAD,INSTALL RAILING ON DECK **NO PLUMBING** **NO ELECTRICAL**City of Long Beach · 2026-09-03$35,000
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 on Long Island came in between $7,800 and $50,000. We exclude permits under $1,000, jobs filed as whole-house construction, and counties whose building departments don't reliably report valuations.