Connecticut Home Renovation Permit Guide
One of the most common questions Connecticut homeowners ask is whether their renovation needs a permit. The answer depends on what you are doing, where you are, and which trades are involved.
When You Typically Need a Permit
- • Structural changes — removing or adding walls, changing rooflines
- • Electrical work — new circuits, panel upgrades, rewiring
- • Plumbing changes — moving drains, supply lines, adding bathrooms
- • HVAC modifications — new ductwork, furnace/boiler replacement
- • Window/door changes that alter openings
- • Deck construction and structural additions
- • Basement finishing and egress window installation
- • Any work affecting fire ratings or egress
When You May Not Need a Permit
- • Cosmetic updates — painting, wallpaper, trim
- • Flooring replacement (non-structural)
- • Cabinet and countertop replacement (no plumbing changes)
- • Fixture replacement — same location, same connections
- • Minor drywall repair
Not sure about your project?
The renovation review identifies permit requirements for your specific scope and town.
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