Across 278 permits filed since 2025-04-24, the median is $5,917; half of projects fall between $2,000 and $12,448. 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 Hartford County, CT actually reported when they pulled permits.
Recent filings
- running gas line to a generator (electrician will be pulling his own permit for generator)- setting 2-120-gallon LP tanks Your application for a Building Permit has been reviewed for compliance with the 2022 State of Connecticut Building Simsbury · 2026-10-23$17,529
- Replace 2/120 gallon propane tanks. Rework existing gas line to fireplace. Run new gas line from tanks to portable generator Your application for a Building Permit has been reviewed for compliance with the 2022 State of Connecticut BuildinSimsbury · 2026-10-23$2,676
- setting 2-120 gallon LP tanks and running a gas line to a customer provided generator Your application for a Building Permit has been reviewed for compliance with the 2022 State of Connecticut Building Code. The permit for the proposed woSimsbury · 2026-10-23$1,728
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 Hartford County, CT came in between $2,000 and $12,448. 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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