Across 62 permits filed since 2025-01-25, the median is $8,750; half of projects fall between $4,255 and $68,750. 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 Southington, CT actually reported when they pulled permits.
Recent filings
- ****MARGARET IS WORKING ON THIS*************** Plumbing for an addition which includes a full bathroom with shower and a bar sink, both on 1st fl.Town of Southington · 2026-07-20$5,000
- *************MIKE IS WORKING ON THIS************* Homeowner to perform electrical installation for a new 20' x 20' residential addition. Work includes installation of new 120V receptacle outlets, lighting outlets/fixtures, switches, and elTown of Southington · 2026-07-20$1,000
- 14'x19' addition to bedroomTown of Southington · 2026-07-16$60,000
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 home addition permits in Southington, CT came in between $4,255 and $68,750. 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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