Custom accessory dwelling unit built by TNT Builders in Burleson, Texas

    ADU Builders in Burleson, TX

    Custom accessory dwelling units — guest suites, in-law quarters, and rental casitas built on your property in Burleson and Johnson County.

    An accessory dwelling unit is a second, smaller home on a lot you already own — a guest house, a suite for aging parents, a home office with a bathroom, or a rental that pays part of your mortgage. TNT Builders designs and builds ADUs across Burleson, Fort Worth, and Johnson County, handling the survey, the setback and utility questions, the permit, and the full build. Like every project we take on, the plan is drawn from scratch for your lot — we do not sell stock casita plans.

    What's Included

    Our Approach

    01

    Multigenerational Suites

    A private one- or two-bedroom unit with its own kitchen, bath, and entry — close enough to help aging parents, separate enough that everyone keeps their independence. Zero-step entries and wider doorways are easy to design in from the start.

    02

    Rental & Income Units

    Long-term rental casitas built to hold up to real tenants: durable finishes, separate metering where the utility allows, private parking, and a layout that lives larger than its square footage.

    03

    Garage Conversions & Additions

    Converting an attached or detached garage is often the fastest path to an ADU. We assess the slab, framing, and drainage first, then tell you honestly whether a conversion or a new build is the better spend.

    04

    Detached Guest Houses

    A standalone structure sited for privacy and views, matched to your main home's roofline, brick, and trim so it reads as part of the property rather than an add-on.

    05

    Permitting & Setbacks Handled

    Burleson city lots and unincorporated Johnson County acreage follow different rules on size, setbacks, septic capacity, and whether a separate address is issued. We work that out before you commit to a design.

    06

    Utilities, Septic & Site Work

    Water, sewer or septic capacity, electrical service, and driveway access are the things that quietly decide an ADU budget. We evaluate all of them during the first site visit, not halfway through construction.

    Explore rural land development when planning site preparation for an acreage project.

    Portfolio

    See Our Work

    Custom guest house exterior craftsmanship by TNT Builders in Burleson, Texas
    Compact custom kitchen finishes used in TNT Builders accessory dwelling units
    Modern detached dwelling construction in Johnson County, Texas
    Interior of a custom in-law suite built near Burleson, Texas
    The TNT Difference

    Why Clients Choose TNT Builders

    If you are weighing a guest house, an in-law suite, or a rental unit on your Burleson or Johnson County property, the first conversation is free and it starts with your lot — not a floor plan.

    Local Johnson County builder — we know which lots can support a second dwelling before you pay for plans

    Every ADU drawn from scratch for your property; no stock casita catalog

    Septic, utility, and setback feasibility checked during the first visit

    The same finish quality we put in our full custom homes, scaled to a smaller footprint

    One point of contact from feasibility through final inspection

    Common Questions

    Frequently Asked

    What is an ADU?+
    An accessory dwelling unit is a self-contained second home on the same lot as your primary residence. It has its own kitchen, bathroom, and entrance, and can be detached, attached to the main house, or converted from an existing garage.
    Can I build an ADU in Burleson?+
    It depends on your lot, its zoning, and your utility or septic capacity — some properties allow a second dwelling and some do not. We check feasibility with the city or the county before you spend anything on design, and we will tell you plainly if your lot cannot support one.
    What does an ADU cost to build?+
    Most of the ADUs we build land between $180,000 and $350,000 depending on size, whether it is detached or a conversion, and how far utilities have to run. Garage conversions usually come in lower; new detached builds with long utility runs come in higher. You get a detailed estimate after a site visit.
    How long does an ADU take to build?+
    Plan on 6–9 months for a detached ADU from breaking ground, and roughly 4–6 months for a garage conversion. Permitting timelines vary between Burleson city limits and unincorporated Johnson County.
    Can I rent out an ADU in Johnson County?+
    In many cases yes, but rental rules differ between the city of Burleson, other municipalities, and unincorporated county land — and deed restrictions or an HOA can override all of it. We help you confirm what applies to your specific address before design begins.
    Is a garage conversion cheaper than building new?+
    Usually, because the slab and part of the structure already exist. It is only the better choice if the slab, framing, and drainage are sound and you are willing to give up the garage. We evaluate the existing structure first and give you an honest comparison of both paths.
    Do you build ADUs on acreage outside city limits?+
    Yes. Rural builds are a core part of what we do — we handle septic sizing, well capacity, private drive access, and county permitting for properties throughout Johnson County.
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    Schedule a free consultation with TNT Builders and let's bring your vision to life.

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