Accessory dwelling unit companies — Knoxville, TN
Last updated: September 24, 2026
What affects the price
Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.
About this service
Frequently asked in Knoxville
What are the disadvantages of ADUs?
How much does an ADU cost in Tennessee?
Costs vary based on size, materials, and site specifics in Knoxville. Factors like foundation type and finishes play a big role. The best way to get an accurate number is to speak with a pro. They can assess your property and provide a precise quote.
What are the rules for ADUs in Tennessee?
Is an ADU allowed in Knoxville?
What is the grant money for ADUs in Tennessee?
While there isn't a universal statewide grant for ADUs in Tennessee, some local initiatives or specific programs might exist. Researching current local incentives is wise. The pros we work with often stay updated on potential funding opportunities. Call us to learn more about how to get a quote.
What are the rules for ADUs in general?
Also serving nearby: Asheville · Chattanooga · Murfreesboro · Roswell · Sandy Springs
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Knoxville — population 198,162; about 2,007 residents per square mile across 98.7 sq mi. ZIP codes covered include 37901, 37902, 37909, 37912, 37914, 37915, 37916, 37917.
Neighborhoods served in Knoxville: Old City, Downtown Knoxville, Bearden, West Knoxville, South Knoxville, Fountain City — and every surrounding area.
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