2 Best ADU Builders in Knoxville, Tennessee
Verified ADU contractors and builders in Knoxville, TN
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Knoxville Garage Rescue
Transform your underutilized garage into functional living space with expert conversion services in Knoxville, TN. We specialize in converting garages into bedrooms, home offices, recreational areas, and more, maximizing your home's potential and value.
Tiny Homes of Tennessee
We are a full-service builder specializing in ADU construction. Our goal is to make this process simple.
Frequently Asked Questions — ADU Builders in Knoxville
How much does it cost to hire an ADU builder in Knoxville?
ADU construction costs in Knoxville, Tennessee 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 Knoxville to get accurate quotes for your specific project.
How long does it take to build an ADU in Knoxville?
In Knoxville, 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 Tennessee local regulations. Prefab and modular ADUs often have faster timelines than site-built units.
Do I need a permit to build an ADU in Knoxville?
Yes, a building permit is required for ADU construction in Knoxville, Tennessee. Your ADU builder will typically handle the permit application as part of their service. Tennessee has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.
What types of ADUs can be built in Knoxville?
Common ADU types in Knoxville 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 Knoxville ADU builder can advise on what's allowed on your specific parcel.