Across 29 permits filed since 2025-04-30, the median is $33,677; half of projects fall between $5,000 and $50,760. 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 Greenwich, CT actually reported when they pulled permits.
Recent filings
- Remove aluminum siding and replace with Hardie Plank Board.Town of Greenwich · 2026-10-07$22,500
- Remove existing and install new vinyl siding with applicable accessories and underalignments.Town of Greenwich · 2026-09-29$33,677
- Siding replacement. Remove and replace existing siding with James Hardie Lap siding. Amend#1: (10/13/26) Adding portico and redoing landing. Val $10,000, Fee $130, St. Ed. $2.60, Proc Fee $40. Amend#2: (10/28/26) Omit portico and landing. Town of Greenwich · 2026-09-29$63,732
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 siding permits in Greenwich, CT came in between $5,000 and $50,760. 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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