Across 851 permits filed since 2025-01-25, the median is $402,000; half of projects fall between $69,325 and $918,940. 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 Queens County, NY actually reported when they pulled permits.
Recent filings
- HORIZONTAL & VERTICAL EXTENSION TO EXISTING 1-FAMILY BUILDING. TO OBTAIN NEW C OF O.Queens · 2026-07-24$1,052,550
- REMOVE THE ILLEGAL EXTENSION AT THE REAR AND REMOVE THE ENCLOSURE AT THE FRONT PORCH TO RESOLVE ECB VIOLATION# 35227631K, WORK AT 1ST FLOOR. NO CHANGE IN USE, EGRESS OR OCCUPANCY.Queens · 2026-07-23$15,000
- VERTICAL AND HORIZONTAL EXTENSION OF EXISTING ONE FAMILY AND COVNERT TO TWO FAMILY HOUSE. OBTAIN NEW C OF OQueens · 2026-07-23$1,135,350
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 home addition permits in Queens County, NY came in between $69,325 and $918,940. 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
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