Best accessory dwelling unit — Knoxville, TN

Looking for best accessory dwelling unit in Knoxville, TN? Call AccessoryDwellingUnit Pros for a contact a provider — no obligation. Licensed adu builders serve Knoxville and the surrounding area, and you'll get straight answers on timing and what affects the price.

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

The best ADU for your property is one that increases your home value while meeting your specific lifestyle needs. Whether you need a private office, a rental income source, or a space for family, the right unit features durable materials and an efficient layout. We focus on high-quality construction that stands the test of time, ensuring your investment is built to last. We help you design the perfect fit. Exact pricing confirmed free on the call.

Frequently asked in Knoxville

What are the disadvantages of ADUs in Tennessee?

How much does an ADU cost in Tennessee?

What are the rules for ADUs in Tennessee?

ADU rules in Tennessee generally involve meeting setback requirements, height restrictions, and ensuring the unit has independent utility access. Local municipalities, including Knoxville, often have specific ordinances you'll need to follow. Discussing these with an expert is key.

Is an ADU allowed in Knoxville?

Yes, ADUs are generally permitted in Knoxville, but specific regulations regarding size, placement, and parking must be met. The city has been working to streamline the process for homeowners looking to add these units. A local pro can confirm compliance for your specific project.

What is the process for building an ADU in Knoxville?

How do I find the best accessory dwelling unit pros in Knoxville?

Also serving nearby: Asheville · Chattanooga · Murfreesboro · Roswell · Sandy Springs

All cities in Tennessee →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

198,162residents

2,007per sq mile

8ZIP codes served

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: Downtown Knoxville, Bearden, West Hills, Old City, Sequoyah Hills, North Knoxville — and every surrounding area.