ADU, Garage additions & Pergola Builder in Knoxville & East Tennessee 

Garage Conversions & In-Law Suites

More space is one of the most common needs homeowners across Knoxville and East Tennessee deal with and moving is rarely the right answer. Whether you need a private space for aging parents, rental income from a backyard unit, a dedicated home office, or room for adult children, the solution is often already on your property.

CraftMaster is a licensed Tennessee general contractor with 30+ years building ADUs, garage conversions, detached garages, and in-law suites across Knoxville, Powell, Oak Ridge, Halls, Clinton, LaFollette, Andersonville, Rocky Top, and all of East Tennessee. We handle permits, zoning, and construction one team, one point of contact. Call 865-437-2334 for your free estimate.

An accessory dwelling unit, garage conversion, or detached garage can add $50,000–$150,000 in property value, generate $800–$1,200 per month in rental income, and solve space problems without the cost and disruption of moving. East Tennessee's older neighborhoods, larger rural lots, and strong rental demand make this one of the best investments a homeowner can make right now.

Why Choose Craftmaster as Your ADU Builder in Knoxville & East Tennessee?

Eager to expand your home, but not sure where to start? You’ll be putting a lot of money into your living area, so it’s important to hire the right builder. When homeowners across Knoxville and East Tennessee need more space without moving, they trust Craftmaster to make the process simple and stress-free. Here are some of the things that make us the best ADU builders KnoxVille, TN, that you can trust.

30 Plus Years of Experience

Since 1990, CraftMaster has built ADUs and garages across Knox, Anderson, and Campbell counties. We know which lots in Knoxville qualify for ADU construction under current zoning, what Knox County Codes requires for detached structures, and how to navigate Campbell County permits for LaFollette and Rocky Top projects. No contractor learning curve on your property.

We Handle the Hard Parts

ADU construction in Knox County requires zoning compliance, building permits, and passing multiple inspections foundation, framing, electrical, plumbing, HVAC, and final occupancy. CraftMaster handles every permit and coordinates every inspection. You never touch paperwork. Your project moves forward without delays.

Honest, Up Front Pricing

Before any work begins, you receive a detailed, line-item written estimate site work, foundation, framing, MEP rough-in, finishes, and permits broken out separately. No range estimates. No "it depends" answers without a site visit. You know your number before we break ground, and it does not change without your explicit approval.

Quality That Lasts

CraftMaster builds ADUs and garages to the same standard as full home construction because they are subject to the same Knox County codes, inspections, and structural requirements. Every project we complete:



• Adds measurable resale value: ADUs increase home value 20–30% in active rental markets like Knoxville
• Generates income: Knoxville ADU rentals average $800–$1,200/month in current market conditions
• Provides private, comfortable living space for family or tenants
• Delivers a clean, permitted structure with Certificate of Occupancy no issues at resale

Our Garage and ADU Services in Knoxville & East Tennesse

Each property is different, and each goal is unique. As a full-service detached garage builder Knoxville, TN, and ADU specialist, we offer the full range of services to add the space you need. From garage conversions in Knoxville to detached garages in Powell and ADUs in Oak Ridge, we help homeowners across East Tennessee create extra space that fits their lifestyle.

Serving Homeowners Across All of East Tennessee | Garages & ADUs in Every Market

CraftMaster builds garages, ADUs, garage conversions, and in-law suites across every market in East Tennessee from Knox County to Campbell County to Blount County. Every project is fully permitted through the correct local authority, built to Tennessee residential code, and delivered with a Certificate of Occupancy. Here is where we work and what local homeowners can expect from us in each market.

Knoxville is our home base and highest-volume market for garage and ADU construction. CraftMaster has built detached garages along Middlebrook Pike in West Knoxville, converted garages to living space near Fountain City in North Knoxville, and added in-law suite additions throughout Knox County. We pull Knox County building permits and coordinate Codes Administration inspections in-house no delays waiting on paperwork. Whether you need a backyard ADU for rental income or a detached two-car garage with a finished loft, one licensed Tennessee general contractor handles everything from zoning review to Certificate of Occupancy. Call 865-437-2334 for your free Knoxville estimate.

Oak Ridge sits 25 miles west of Knoxville on I-40, and CraftMaster serves it as regularly as our home market. Neighborhoods near the Illinois Avenue corridor and Jefferson Avenue have lot sizes well suited to detached garages and ADU additions and Anderson County's permitting process is one we navigate daily. CraftMaster builds garage conversions, detached garages, and accessory dwelling units for Oak Ridge homeowners with full Anderson County permit management included. No separate permit expeditor needed. Call 865-437-2334 for your free Oak Ridge estimate.

Clinton's older neighborhoods near the courthouse square and the Norris Dam corridor sit on larger lots that are ideal for detached garage additions and accessory dwelling units. As the Anderson County seat, Clinton properties fall under Anderson County Codes a permitting process CraftMaster handles in-house for every project. We build durable, fully permitted garages and ADUs for Clinton homeowners with no paperwork burden on the owner. Call 865-437-2334 for your free Clinton estimate.

Powell's fast-growing residential neighborhoods north of Knoxville along US-25W are among the strongest markets in Knox County for ADU and garage construction. Larger lot sizes, strong rental demand, and proximity to the interstate make detached garage and ADU investments here particularly strong. CraftMaster builds garages and ADUs in Powell with Knox County permits managed in-house from application through final inspection. Call 865-437-2334 for your free Powell estimate.

Most Knoxville-based contractors will not make the drive to LaFollette in Campbell County. CraftMaster does and has for decades. LaFollette homeowners along Jacksboro Highway and the Cove Lake area have access to the same licensed Tennessee general contractor that serves Knoxville, with full Campbell County permit coordination included. We build detached garages, ADUs, and in-law suites in LaFollette without adding a travel premium. Reliable service, honest pricing, clear timeline. Call 865-437-2334 for your free LaFollette estimate.

Halls is a close-knit North Knox community along Maynardville Pike where residential lot sizes regularly accommodate detached garages and accessory dwelling units. CraftMaster builds garages and ADUs for Halls homeowners with Knox County permit management handled in-house from zoning review through Certificate of Occupancy. Same quality build, same licensed contractor, same accountability as every other market we serve. Call 865-437-2334 for your free Halls estimate.

Andersonville sits in Anderson County near Norris Lake and the larger rural lot sizes here make it one of the best markets in East Tennessee for detached garage and ADU construction. Properties near Norris Lake Road and the Clinch River corridor regularly have the space and zoning for accessory structures that urban lots cannot accommodate. CraftMaster builds garages, ADUs, and in-law suites for Andersonville homeowners with Anderson County permit management included. Call 865-437-2334 for your free Andersonville estimate.

Rocky Top spans Knox and Campbell counties and CraftMaster is one of the few licensed Tennessee general contractors who builds regularly in both. Homeowners near Lake City Road and the Andersonville Highway corridor get the same quality build standard as Knoxville, with county-specific permit management for whichever jurisdiction applies to their property. Detached garages, ADUs, in-law suites fully permitted, built to code, and built to last. Call 865-437-2334 for your free Rocky Top estimate.

CraftMaster builds garages and ADUs beyond our core eight markets. Each location has its own zoning authority and permit process and CraftMaster navigates all of them in-house. One licensed Tennessee general contractor, one point of contact, and a free on-site estimate no matter where in East Tennessee your property sits. Call 865-437-2334 to discuss your project.

How Does Our Build Process Work?

You should never feel like you’re lost in your own project. From the beginning, we make things simple for you as your ADU builder Knoxville, TN.

We visit your property, measure the site, and review Knox County (or Anderson or Campbell County) zoning requirements for your specific lot. You find out what's buildable, what permits are required, and what the realistic timeline looks like before any cost commitment.

We provide a written design plan and a detailed, line-item estimate foundation, framing, MEP, finishes, permits, and inspections broken out separately. You know your complete cost before we break ground.

CraftMaster pulls all permits, schedules all inspections, and manages every phase of construction foundation through final finishes. You receive progress updates throughout. Every inspection is completed and documented before the next phase begins.

Before we consider a project complete, we walk through every space together checking every finish, fixture, and system. We do not hand over keys until every item is right and the Certificate of Occupancy is issued.

Whether your property is in Knoxville, LaFollette, Powell, Oak Ridge, or anywhere across East Tennessee, you’ll receive the same quality craftsmanship and clear communication from start to finish.

You’ve been needing more room for a long time, and the solution could be in your very own neighborhood. From accessory dwelling units and garage conversions to detached garages and in-law suites, Craftmaster is the best ADU builder Knoxville, TN, families count on for quality construction and a stress-free process.

Don’t delay the space your family needs. Work with a group with 30+ years of successful experience and a reputation for trust.

Call Craftmaster today or request your free quote. Your property may already have the space your family needs. From ADU construction and garage conversions to detached garages and in-law suites, CraftMaster is the licensed Tennessee general contractor Knoxville families trust for quality builds and a stress-free process. Thirty years of experience. Honest pricing. One team from permit to walkthrough. Call 865-437-2334 or use our contact form for your free estimate.

Ready to Add the Space Your Family Needs? Call Craftmaster!