A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Highland Park, TX
Highland Park homeowners call us when they need an ADU, a garage conversion, or a home addition on a lot that rarely has room to spare. Most properties here sit on unusually deep, narrow parcels, and much of the housing stock dates to the 1920s and 1930s. That combination shapes every build: setbacks are tight, trees are protected, and the town’s review process is famously thorough. We plan around all three from the first site visit. If you’re weighing an accessory dwelling unit – a separate small home on your existing lot – call (361) 204-4652 for a straight answer on what your property can actually support.
Why Highland Park Homes Are Different
Highland Park wasn’t platted like a typical Dallas suburb. Streets curve, lots angle, and the original deed restrictions from the 1910s still influence what can be built today. Many garages are detached and set far back on the lot, which actually makes them strong candidates for conversion – the structure is already there, and the setback question often resolves itself. For detached ADUs, though, the math is different: a lot that looks generous from the street may have only a narrow side yard that can legally take a foundation.
Mature trees are a real factor here. The town protects many of them, and a pecan or live oak can dictate where an addition or ADU sits, not the other way around. We’ve had projects where the roofline moved three feet to save a tree the homeowner assumed would have to come down. That’s the kind of detail that matters before you draw anything, not after.
Permitting moves at its own pace in Highland Park. The building department is responsive but detailed, and plans that pass in Dallas proper occasionally need revision here over materials, rooflines, or fenestration. Homeowners who’ve built elsewhere are sometimes surprised by this. We prepare plans with those local expectations in mind from the beginning, so the review doesn’t stall mid-project.
Our Main Highland Park Services
Most Highland Park homeowners come to us with one of three needs: more living space attached to the house, a garage turned into usable square footage, or a standalone ADU in the back. Each has its own page with local detail.
Home Addition Contractor in Highland Park
A home addition in Highland Park usually means extending outward on a lot that doesn’t leave much room to do so. We’ve designed additions that slide into a side yard most builders would call unusable, and others that bump out the rear of a 1930s house without disturbing the original facade. The older framing here requires careful tying-in, and the clay soil means foundation work has to be done right the first time. If you’re considering adding a primary suite, a family room, or a larger kitchen, the full local picture is on the Home Addition Contractor in Highland Park page. You’ll find pricing ranges, timeline expectations, and what the permit process looks like for this town specifically.
Garage Conversion Contractor in Highland Park
Highland Park has a large number of detached garages built in the 1920s through 1950s, and many of them are underused. A garage conversion – turning that structure into a living space – often costs less per square foot than a ground-up ADU because the shell, foundation, and roof already exist. What has to be addressed here is the old slab and the garage door opening, both of which become walls and floors that need insulation, leveling, and waterproofing. Every conversion we do in Highland Park starts with a structural review of the existing frame. Details are on the Garage Conversion Contractor in Highland Park page.
ADU Builders in Highland Park
An ADU – accessory dwelling unit, or a small independent home on the same lot as the main house – is the most flexible option for Highland Park homeowners with the room to place one. Because lots here run deep more often than wide, we typically site ADUs in the rear yard, behind the existing home, where a prefab unit or a site-built structure fits without crowding the main house. We work with both approaches, and the choice usually comes down to access, budget, and what the town will approve on your specific lot. The full breakdown of options, including prefab brands and site-built timing, is on the ADU Builders in Highland Park page. That’s where you’ll find the pricing table and the permit sequence for a detached unit in this town.
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 Highland Park
We work with several established ADU manufacturers and material suppliers, including Mighty Buildings, Boxabl, and Tuff Shed. The right brand for a Highland Park lot depends on access width, foundation type, and the aesthetic the town will approve. See our brands for the full list and the tradeoffs of each.
Pricing for ADU Company in Highland Park, TX
| Service | Typical range in Highland Park |
|---|---|
| Detached ADU (site-built, 400 – 600 sq ft) | $180,000 – $320,000 |
| Detached ADU (prefab, 400 – 600 sq ft) | $140,000 – $260,000 |
| Garage conversion to ADU (existing structure) | $90,000 – $180,000 |
| Attached ADU addition | $150,000 – $280,000 |
| Home addition (primary suite, 200 – 400 sq ft) | $120,000 – $240,000 |
| Home addition (family room or kitchen expansion) | $100,000 – $220,000 |
| Second-story addition | $180,000 – $350,000 |
| Foundation work (pier and beam or slab repair) | $8,000 – $35,000 |
What pushes a Highland Park build higher is usually access: narrow driveways, protected trees, or a lot where the crane or concrete truck has to work from the street. The town’s design review can also add engineering and materials cost depending on what’s visible from the street. Whatever the number ends up being, you’ll see it in writing before any work starts – that’s the same for every project, no exceptions.
Neighborhoods We Serve in Highland Park
We work throughout Highland Park, on both sides of Preston Road and from the Dallas North Tollway edge over toward Armstrong Parkway. Each pocket of town has slightly different setbacks and lot patterns, so we come out for every site visit and measure rather than assume.
- Old Highland Park (north of Armstrong)
- Highland Park West (near the Tollway)
- The Exall Lake area
- Lakeside Drive corridor
- Bordeaux Avenue and Beverly Drive area
For most estimates in Highland Park, we can get someone out within a few business days, and the written price follows within a week of the walkthrough.
Service Area – Cities Near Highland Park
Our Highland Park crews also take on projects in nearby communities when the fit is right. We work regularly in Dallas, TX, Plano, TX, Garland, TX, and Richardson, TX. If you’re just outside Highland Park and wondering whether we serve your street, call and ask – scheduling is coordinated from our Dallas-Fort Worth office, with crews dispatched locally.
Serving Highland Park, TX - Our Local Coverage Area
We’re based in the Highland Park 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 Highland Park
Most Highland Park ADU projects run five to nine months from first drawings to final inspection. That includes the town’s design review, which is the variable most likely to stretch the timeline. We give you a written schedule with the price, and we update it as the permit moves through review.
Yes, in nearly every case. Highland Park has its own building and design review process, and if your property has deed restrictions, those run alongside the town’s requirements. We prepare plans and applications for both tracks so nothing comes back as a surprise. Call (361) 204-4652 and we’ll walk you through what applies to your lot.
Yes. From the first site visit through engineering, permitting, foundation, structure, finishes, and final inspection, one team carries the project. You get a written price before work starts and a written guarantee on the finished build. Call (361) 204-4652 for a free estimate on your ADU or addition.
If you’re in Highland Park and want a real number on an ADU, garage conversion, or addition, call (361) 204-4652. We’ll put the price in writing before any work begins.
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 Highland Park Customers Say
"Garage conversion into an office and guest room. Fair written price, finished close to on schedule, and they fixed a small drywall crack under warranty months later without any hassle."
- Diana Cho"Solid build on a home addition. The permit stage dragged, which held things up a few weeks. They were upfront it was out of their hands and the construction itself moved fast and clean."
- Douglas Fenwick"The ADU came out beautiful and the permitting, which terrified me, was handled start to finish. They kept me updated every week so I was never wondering what was happening."
- Shauna Mills
