Homeowners searching for granny flat builders in Burleson, TX are usually weighing the same three options: convert the garage, build above it, or put up a detached unit in the backyard. Burleson allows these accessory dwelling units (ADUs) on most residential lots, but the exact rules, costs, and permit steps depend on your address and lot size. Here's what to check before you call a contractor.
ADU, Granny Flat, or Garage Apartment? What Burleson Zoning Actually Allows
Granny flat, ADU, garage apartment, in-law suite — these all describe the same type of structure: a secondary living space on a residential lot. Burleson's zoning ordinance regulates them as accessory buildings, with rules on setbacks, lot coverage, and height that vary by base zoning district and lot size. A detached accessory structure generally can't sit closer than a few feet to the side lot line or the main house, and any version with plumbing or electrical work triggers a separate permit beyond the basic accessory-building permit.
That's the existing framework, but it's worth knowing Burleson has been actively revising it. City planning staff recently floated a draft update that would define ADUs specifically and cap them at the smaller of 900 square feet or half the size of the primary dwelling, while also requiring one additional off-street parking space per unit. Council members pushed back on how that would affect large estate lots, and the proposal was still being debated with options for exceptions through a special use permit. Translation: if you're planning a granny flat in Burleson, don't rely on rules you read last year. Confirm current status directly with Burleson's accessory building permit page before finalizing a design, and check your HOA's deed restrictions too — some Burleson neighborhoods block ADUs even where city zoning allows them.
Our Burleson service-area page covers what we typically run into on local lots across the city.
What Does a Granny Flat Cost in Burleson, TX in 2026?
Granny flat cost comes down to which of three project types you're building. Each one carries a different price floor because of how much existing structure you're reusing.
| Project type | What it involves | Typical cost driver |
|---|---|---|
| Garage conversion | Finish existing garage space into a living unit | Lower per-square-foot cost since framing, roof, and slab already exist |
| Above-garage addition | Build a new level above an existing or new garage | Added structural framing and stair access push costs higher |
| Detached ADU | Freestanding new structure in the backyard | Highest cost tier due to new foundation, roof, and full utility runs |
Across Texas, stick-built accessory dwelling projects commonly land in the $150 to $300 per square foot range, with finishes, site access, and utility distance being the biggest swing factors on any given lot. A garage conversion with minimal plumbing changes will sit at the low end of that range; a detached unit with a full kitchen, bathroom, and new sewer tie-in will push toward the high end or beyond.
Many homeowners finance these projects with a HELOC, cash-out refinance, or construction loan. If you're counting on rental income from the unit to help qualify, it's worth knowing that conventional lenders increasingly allow ADU rent to count toward mortgage qualification — Freddie Mac's ADU financing guidance outlines how that works in practice.
The Burleson Permit Process, Step by Step
A Burleson building permit for an ADU generally follows five steps:
- Prepare a site plan showing lot dimensions, setbacks, existing structures, and utility easements.
- Submit the application to Development Services, either online or in person at City Hall.
- Plan review, which checks the project against zoning and building code requirements.
- Approval and fee payment, based on the estimated construction value of the project.
- Scheduled inspections at each stage of construction, through to final sign-off.
Standard residential review often takes one to three weeks, though detached ADU projects with new utility connections can run longer. Review timelines shift with staffing and seasonal application volume, so confirm a current estimate before locking in a construction schedule. For a sense of how accessory dwelling units are defined and scoped under the model codes most Texas cities build their ordinances from, the International Code Council's zoning code definitions are a useful reference.
How to Choose the Right Granny Flat Builder in Burleson
Not every fence or deck crew is set up to run a full ADU build. Look for these specifics before signing a contract:
- An active Texas general contractor license, not just a handyman registration.
- Direct experience with detached structures, including foundations and full utility tie-ins, not just garage remodels.
- One team handling design and permitting together, so the site plan and the build match without costly redesigns mid-project.
- A written scope that separates garage conversion, above-garage addition, and detached builds, since each has a different cost basis.
- References from recent local projects, ideally ones you can drive by.
A builder who manages both the permit paperwork and the construction keeps the schedule predictable, because nobody's waiting on a second contractor to interpret the city's comments.
Popular Granny Flat and Garage Apartment Projects We Build
Three project types come up most often with Burleson homeowners.
Garage conversions built for rental income. Finishing an existing garage into a studio or one-bedroom unit is the fastest path to a rentable space. See our accessory building construction and detached garage building services for what that typically involves.
Above-garage apartments for multigenerational households. Adding a second story over a garage keeps the footprint small while creating real separation for aging parents or adult children. Our house addition construction page covers how we scope these builds.
Detached backyard granny flats on larger lots. A standalone unit offers the most privacy and the clearest rental separation, but it needs its own foundation and utility runs. Our ground-up construction and concrete foundation pouring services both come into play here.
If you're still deciding between a garage conversion and a full detached build, our guide on garage remodel contractors in Midlothian, TX breaks down the cost and permit differences between the two approaches in more detail.
Why Homeowners Choose P&S Fencing and Decking
P&S Fencing and Decking was founded by Shawn and Philip, two contractors who started out doing every job themselves — building fences, framing decks, and pouring concrete with their own hands before the company grew into a full general contracting operation. That hands-on background is why we scope granny flat projects around what actually gets inspected and signed off, not just what looks good on a rendering.
We handle the parts of an ADU project that get skipped or underestimated: footing depth for a detached unit, setback compliance on tight lots, and the utility tie-ins that trigger a second permit. If you're ready to compare options for your lot, get a free estimate and we'll walk through what your specific address allows.
Serving Burleson and the Greater DFW Metroplex
Burleson sits inside a broader Tarrant and Johnson County service footprint that also includes Mansfield, TX, Cleburne, TX, Midlothian, TX, and Alvarado, TX. Working across these municipalities means dealing with varied permit processes side by side, which helps when a Johnson County project needs to be cross-checked against Tarrant County standards. You can browse finished local work on our projects page, or start at our homepage to see our full range of services.
FAQ
What's an ADU or granny flat?
An accessory dwelling unit is a secondary living space on a residential lot, also called a granny flat, in-law suite, or garage apartment. It typically includes its own kitchen, bathroom, and separate entrance.
Can I build a granny flat in Burleson, TX?
Generally yes, in most residential zones, but lot size, base zoning district, and HOA deed restrictions all affect what's allowed on your specific address. Confirm current rules with Development Services before finalizing a design, since the city has been actively revising its ADU standards.
Do I need a permit for a granny flat or garage apartment in Burleson?
Yes. Any new accessory dwelling unit, garage conversion with added plumbing or electrical, or detached structure beyond the minor accessory threshold requires a Burleson building permit and inspections.
How much does a granny flat cost to build in Burleson?
Garage conversions are the least expensive option since the framing and roof already exist. Above-garage additions cost more due to structural work, and detached ADUs sit at the top of the range because they require a full foundation and new utility lines. Texas builds commonly run $150 to $300 per square foot, depending on finishes and site conditions.
Can I rent out a granny flat in Burleson?
Usually yes, subject to local zoning and any HOA restrictions, which is one of the most common reasons homeowners build one. Some lenders will also count projected ADU rental income toward mortgage qualification.
How long does it take to build a granny flat in Burleson?
A garage conversion can often be completed in a few weeks to a couple of months. A detached ADU with new foundation and utility work typically takes several months from permit approval to final inspection, depending on scope and weather delays.
About the Author
This guide was written by Shawn Prigg, co-founder and general contractor at P&S Fencing and Decking, a licensed Texas general contractor (GC0158148) serving Burleson and the greater Dallas-Fort Worth Metroplex since 2015. Shawn has overseen fence, deck, concrete, and accessory structure builds across Johnson and Tarrant County for more than a decade. Questions about a specific lot or project? Contact our team directly.
