A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Round Rock, TX
Adding an ADU, garage conversion, or home addition in Round Rock means working with 1990s-2010s tract homes on slab foundations, frequently inside HOA-managed subdivisions, and on expansive clay soil that shifts with every wet-dry cycle. Our crews know these lots because we work them every week. We write a full price before any work starts, and every project is backed by the 365-Day Done Right Promise. Call (254) 615-3842 to talk through your lot, your HOA rules, and a realistic budget.
Why Round Rock Homes Are Different
Round Rock’s housing stock is mostly brick-veneer tract homes built between the 1990s and 2010s, many on generous lots without alley access. That single fact reshapes ADU design here more than almost anything else. Without an alley to deliver materials or position a detached unit, we often work around front-facing garages and utility easements, which changes where an ADU can sit and how the foundation gets poured.
Central Texas heat is another factor Round Rock families feel directly. A backyard ADU here without high-efficiency air conditioning will be unpleasant from May through September, and winter freezes – like the one that burst pipes across Williamson County – mean exposed plumbing needs insulation and thoughtful placement from day one. Building inspectors in Round Rock pay close attention to foundation drainage on expansive clay soils. We plan slab and drainage details around that before the first inspection, not after a failed one.
The permit path is also different here. Round Rock’s recent adoption of granny flat ordinances has opened the door for attached and detached ADUs, but HOA covenants in master-planned communities like Teravista and Brushy Creek still carry their own layers of architectural review. Homeowners often hear “the city said yes” and assume they’re done. In practice, HOA approval, easement review, and septic capacity checks all run on their own timelines in Round Rock. We map that path before you spend money on plans.
Our Main Round Rock Services
Most Round Rock homeowners reach out about one of three things: adding square footage to the main house, turning an underused garage into living space, or building a detached ADU in the backyard. Each has its own page so you can go straight to the one that fits your lot.
Home Addition Contractor in Round Rock
Home additions in Round Rock usually mean extending off the back of a 90s-era tract home or adding a second-story bump-out where the HOA will allow it. The brick veneer on most of these houses means we match materials carefully, and the slab foundation means the addition’s foundation has to be engineered to move with the existing concrete through clay-soil wet and dry seasons. We’ll handle the HOA submittal alongside the city permits so you’re not chasing signatures from two different directions. Learn more about what a Home Addition Contractor in Round Rock can do on your property.
Garage Conversion Contractor in Round Rock
Garage conversions are one of the fastest ways to add a bedroom, home office, or small apartment in Round Rock, and the front-facing garages common to this city actually work in your favor: access is straightforward and the existing slab can often be reused. The tradeoffs we evaluate case by case are HVAC runs, insulation in the walls and overhead door opening, and what the HOA says about changing the driveway or adding a parking pad. Our crews protect the rest of the house with shoe covers and drop cloths, and you’ll get a photo of the clean-up before the crew leaves each day. Details on the Garage Conversion Contractor in Round Rock page.
ADU Builders in Round Rock
Detached backyard ADUs are the fastest-growing request we see in Round Rock, especially in communities like Brushy Creek, Teravista, and the older Chisholm Valley neighborhood where the lots are deep and the privacy is real. The work here starts with a close read of your HOA covenants and a check on whether the property’s existing septic or sewer capacity can carry a second dwelling. We also design around the lack of alley access that defines much of Round Rock. See what ADU Builders in Round Rock can fit on your lot with no cost and no pressure.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Round Rock
We’re hands-on with the ADU brands Round Rock homeowners research before calling anyone, including Abodu, Cover, and Tuff Shed, plus James Hardie siding for exterior finishes. Parts and materials are routed through our local supply chain so you’re not waiting on a distant vendor’s schedule. See our brands for the full picture.
Pricing for ADU Company in Round Rock, TX
| Service | Typical range in Round Rock |
|---|---|
| Garage conversion (basic finish) | $55 – $95 per sq ft |
| Garage conversion (full apartment) | $95 – $155 per sq ft |
| Detached ADU (prefab, base model) | $75,000 – $130,000 |
| Detached ADU (custom, site-built) | $190,000 – $320,000 |
| Attached ADU / junior ADU | $85,000 – $175,000 |
| Home addition (single room bump-out) | $48,000 – $95,000 |
| Home addition (primary suite) | $85,000 – $175,000 |
| Home addition (second-story partial) | $145,000 – $290,000 |
| Kitchen addition | $95,000 – $210,000 |
| Second-story full addition | $210,000 – $380,000 |
HOA-mandated material choices, unusual setback requirements, and septic or foundation work on Round Rock’s clay soil can all push a project toward the upper end of these ranges. The price we give you before the work starts is the price you’ll see at the end – no surprise line items added after the crew arrives.
Neighborhoods We Serve in Round Rock
We work across the whole Round Rock area, from established east-side neighborhoods to the newer master-planned communities west of I-35. Most of our Round Rock jobs are scheduled within a normal business week once permits clear.
- Brushy Creek
- Teravista
- Chisholm Valley
- Forest Creek
- Sonoma
Service Area – Cities Near Round Rock
Our Round Rock crews also cover projects in nearby Williamson and Travis County communities. If you’re just outside Round Rock, we likely serve you too: Cedar Park, TX, Leander, TX, Austin, TX, and Taylor, TX are all within our regular service area, with dispatch and scheduling coordinated from our Austin office.
Serving Round Rock, TX - Our Local Coverage Area
We’re based in the Round Rock area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About ADU Company in Round Rock
Once permits and HOA approval are in hand, most Round Rock projects start within two to four weeks. HOA review timelines in communities like Teravista and Brushy Creek often shape the schedule more than our own availability does. Call (254) 615-3842 for a realistic start-date estimate based on your specific subdivision.
Yes. We prepare and submit the architectural packages most Round Rock HOAs require, including elevation drawings and material schedules. Some HOAs also want fence, setback, and drainage details. We handle those before work begins so you’re not redoing plans halfway through. Call (254) 615-3842 and we’ll tell you what your specific HOA will ask for.
Sometimes. Older Round Rock neighborhoods, especially Chisholm Valley, still run on original 1980s septic systems that may be at capacity. If a second dwelling triggers a capacity issue, the city will require an aerobic system upgrade before approval. We check this early so it’s a known cost, not a surprise. Call (254) 615-3842 for a free lot evaluation.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Round Rock Customers Say
"They converted our garage and were so mindful that we were living right there through it. Quiet hours respected, site swept, nothing left out where the kids play. Lovely work."
- Eugene Park"Built a backyard unit for us. For a months long project the crew kept the site remarkably tidy, swept daily, and were respectful of our neighbors and our dog. Beautiful result."
- Charlotte Vey"Backyard cottage build. For a long project they kept the site remarkably tidy and were respectful of our neighbors and our dog. Swept the driveway every evening."
- Leona Pfeiffer
