Across 72 permits filed since 2025-01-25, the median is $45,000; half of projects fall between $10,000 and $128,558. 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 Kings County (Brooklyn), NY actually reported when they pulled permits.
Recent filings
- Application filed for emergency generatorBrooklyn · 2026-07-22$900,000
- Emergency generator for new building IS 82KBrooklyn · 2026-07-21$328,098
- Installation of new emergency standby generator supplied by fire rated fuel oil. Related fuel oil storage and other scopes submitted under separate applications.Brooklyn · 2026-07-08$120,000
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 standby generator permits in Kings County (Brooklyn), NY came in between $10,000 and $128,558. 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
Standby generator in New YorkStandby generator in ConnecticutStandby generator on Long Island