ADU Locator

1 Best ADU Builders in Madison, Connecticut

Verified ADU contractors and builders in Madison, CT

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Gulick & Co. Renovation Contractors

Specializing in garage-to-living-space conversions throughout Madison, CT, this experienced renovation team transforms underutilized garages into functional rooms that add value and comfort to your home. Whether you're looking to create an extra bedroom, home office, or recreation space, they bring expert craftsmanship to every conversion project.

+1 203-996-6151
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Frequently Asked Questions — ADU Builders in Madison

How much does it cost to hire an ADU builder in Madison?

ADU construction costs in Madison, Connecticut vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in Madison to get accurate quotes for your specific project.

How long does it take to build an ADU in Madison?

In Madison, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on Connecticut local regulations. Prefab and modular ADUs often have faster timelines than site-built units.

Do I need a permit to build an ADU in Madison?

Yes, a building permit is required for ADU construction in Madison, Connecticut. Your ADU builder will typically handle the permit application as part of their service. Connecticut has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.

What types of ADUs can be built in Madison?

Common ADU types in Madison include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local Madison ADU builder can advise on what's allowed on your specific parcel.