







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Garage Conversion Contractor Across Preston Hollow
A garage conversion in Preston Hollow typically costs between $85,000 and $165,000 for a full ADU build-out, and a simpler garage-to-bedroom conversion runs $45,000 to $75,000. Most projects take 10 to 16 weeks from permit to final inspection. We’re Lodgewick ADU Dallas, and we’ve worked on Walnut Hill Lane, Royal Lane, and the streets off Preston Road long enough to know where the clay soil swells, which mid-century slabs lack vapor barriers, and which HOAs want design review before you touch a roofline. If you’re weighing a garage conversion ADU or turning that unused two-car garage into a bedroom, call (361) 204-4652. You’ll get a live person, a written price before any work starts, and a straight answer about what your garage can actually become.

Why Lodgewick ADU Dallas Is Preston Hollow’s Preferred Garage Conversion Contractor Company

Preston Hollow homeowners don’t need a contractor who promises everything and delivers a change-order invoice. They need someone who has seen what’s behind the drywall of a 1963 detached garage on a 12,000-square-foot lot. That’s the work our Garage Conversion Contractor team does week in and week out across this neighborhood. Russ Delmar leads our crews, and he’s particular about the things that matter: the slab gets checked for moisture before we quote, the tree roots get located before we trench, and the price you’re quoted is the price on the contract. Every job here runs under The Kingswell Guarantee, which is our written promise covering the price, the arrival window, the job site cleanliness, and the finished work for a full 365 days.
We coordinate scheduling and dispatch from our Dallas-Fort Worth office, with crews moving through Preston Hollow daily. When a homeowner on Meadowbrook Drive calls about a permitting question or a wall that’s not plumb, a live person answers. Not a voicemail. Not a chatbot. That matters in a neighborhood where many homes are 60 years old and every one of them has quirks. Our customers tell us the written guarantee is why they chose us over the cheaper bid. If something isn’t right within that first year, we come back. That’s in writing.
Garage to Bedroom Conversion in Preston Hollow
A garage to bedroom conversion in Preston Hollow turns an attached or detached garage into a conditioned living space, typically adding 300 to 500 square feet of usable room to a home without the cost of our Home Addition Contractor in Preston Hollow. We see this most often in the ranch-style neighborhoods east of Preston Road, where a growing family needs a first-floor bedroom or a quiet home office and doesn’t want to move. In Preston Hollow, this work runs $45,000 to $75,000 depending on the garage’s condition. A newer attached garage with a good slab and electrical service sits at the lower end. A 1950s detached garage with no insulation and a slab poured without a moisture barrier lands higher, because the floor has to be addressed before anyone sleeps in there.
Attached Garage Conversion
An attached garage shares at least one wall with the main house, which often means simpler utility connections. The electrical panel, water lines, and HVAC are already close. But Preston Hollow’s older attached garages frequently have a 6-inch step-down from the house floor. We typically raise the floor to match the main level, insulate the walls to current code, and replace the garage door with a properly framed wall and window. The benefit is speed: attached conversions in Preston Hollow often finish in 10 to 12 weeks.
Detached Garage Conversion
A detached garage conversion in Preston Hollow is a bigger project because every system has to be run across the yard: electrical, water, sewer, and often a new HVAC line. The upside is privacy and separation, which makes detached conversions a natural fit for an in-law suite or a rental. Expect trenching through Dallas clay, and in Preston Hollow, expect tree roots. Our crews regularly use directional boring on these lots to run lines under mature oaks without cutting through the roots that hold those trees up through hot, dry summers.
Garage Conversion ADU in Preston Hollow

A garage conversion ADU in Preston Hollow is the full transformation of an existing garage into a legal accessory dwelling unit: a self-contained apartment with its own kitchen, bath, sleeping area, separate entrance, and its own address. In Preston Hollow this runs $85,000 to $165,000 for a detached garage converted to a livable ADU, depending on the garage’s existing condition, the foundation work required, and whether you choose site-built framing or a prefab system from a manufacturer like Boxabl or Plant Prefab. The mid-century ranch homes on oversized lots throughout Preston Hollow are among the best candidates in Dallas for this kind of project, because the lot already has the garage set back where an ADU makes sense.
Garage ADU
When we say garage ADU, we mean the original garage is either fully converted or partially retained as storage while a new living unit takes shape. In Preston Hollow, many homeowners keep a small storage bay and convert the rest. That preserves the look of the property while creating a rentable unit or a long-term guest house. Russ Delmar typically walks each lot before quoting, to check the roofline height, the slab condition, and the setback. A 7-foot plate height on a 1960s garage won’t meet the 7-foot-6 minimum for habitable space, and that reframing cost has to be in the written price up front, not discovered later.
Garage Apartment Conversion
A garage apartment conversion in Preston Hollow means the finished unit sits above a garage or takes over the entire garage structure as an apartment. On lots along Strait Lane and Douglas Avenue, we’ve seen garages that were built tall enough to accept a second story. More often, the garage becomes a single-level apartment with its own entrance, a small kitchen, and a full bath. The permit path here is the same as any ADU: building permit, electrical, plumbing, mechanical, and a final inspection. We pull permits on every project. No exceptions.
Trusted Brands We Service in Preston Hollow
The materials on a Preston Hollow garage conversion matter more than people expect. The clay soil moves, the summer heat is relentless, and the humidity demands proper moisture control. We work regularly with James Hardie fiber-cement siding, which holds up well against the expansion and contraction that comes with Dallas’s temperature swings and matches the brick-and-board look of 1960s Preston Hollow homes. For homeowners who want a faster timeline, we also work with prefab manufacturers like Boxabl and Plant Prefab, whose factory-built modules can cut weeks off a Preston Hollow timeline. We keep a working inventory of common trim, flashing, and water-resistive barrier materials staged for Preston Hollow jobs, so a missing corner piece doesn’t sit on backorder for three weeks.

Common Garage Conversion Contractor Problems We See in Preston Hollow Homes
- Uninsulated slabs poured before moisture standards existed. Many Preston Hollow garages sit directly on concrete poured in the 1950s and 1960s with no vapor barrier underneath. We check for this on every quote. Skipping the check means a musty, damp room after the first heavy rain.
- Ceiling heights that don’t meet ADU code. Mid-century detached garages in Preston Hollow often have 7-foot plate heights. Habitable space requires 7-foot-6 minimum. Reframing the roofline adds cost, and that cost belongs in the written quote, not in a surprise change order.
- Mature oak roots running straight through the utility path. Preston Hollow’s tree canopy is part of its character. Those roots make open trenching risky and expensive. We locate roots before we dig, and in most cases directional boring is the cheaper, cleaner option.
- HOA design review on rooflines and exterior materials. Some Preston Hollow pockets have deed restrictions or HOA rules about what the finished conversion can look like from the street. We handle the submission documents and work with the review board, so you don’t get a stop-work notice halfway through.
Pricing for Garage Conversion Contractor in Preston Hollow, TX
Here are the honest numbers for Preston Hollow. A garage to bedroom conversion runs $45,000 to $75,000. A full garage conversion ADU with its own kitchen and bath runs $85,000 to $165,000. A garage apartment conversion with a second story, where the structure supports it, lands at $120,000 to $200,000. What moves the price: the condition of the existing slab, whether the roofline needs reframing for ceiling height, how far utilities have to run, and whether HOA design review slows the permit path. Every quote we give in Preston Hollow is a written line-item price before work starts. Call (361) 204-4652 to schedule your free estimate, and Russ Delmar will walk the garage with you and tell you what’s actually possible on your lot.
Here’s what the Preston Hollow market looks like in real numbers:
| Project Type | Typical Range in Preston Hollow | Typical Timeline |
|---|---|---|
| Garage to Bedroom (attached) | $45,000 – $65,000 | 10 – 12 weeks |
| Garage to Bedroom (detached) | $55,000 – $75,000 | 12 – 14 weeks |
| Garage ADU (studio, ~400 sq ft) | $85,000 – $125,000 | 12 – 16 weeks |
| Garage ADU (one-bedroom, ~600 sq ft) | $110,000 – $165,000 | 14 – 18 weeks |
| Garage Apartment (second story, where feasible) | $120,000 – $200,000 | 16 – 24 weeks |
We Also Serve Cities Near Preston Hollow
Our crews work throughout Garage Conversion Contractor in Preston Hollow and also take projects in Dallas, Plano, Garland, and Richardson. If you’re just outside the Preston Hollow boundary and wondering whether we cover your street, call (361) 204-4652. We’ll tell you straight.
Serving Preston Hollow, TX - Our Local Coverage Area
We’re based in the Preston Hollow 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 Garage Conversion Contractor in Preston Hollow
Yes. A legal ADU in Preston Hollow requires its own address, which the city assigns during the permit process. That separate address is what makes the unit rentable and legal. We handle the address application as part of the permit package. Call (361) 204-4652 and we can walk you through what the city will ask for on your specific lot.
Many Preston Hollow streets have deed restrictions or active HOAs, and the answer varies by street and by plat. Some allow ADUs with design review; others restrict renting the unit. We review your specific deed restrictions before you commit to anything, and we’ll tell you what’s allowed and what isn’t. Call (361) 204-4652 for a straight read on your property.
Most detached garage conversions to ADUs in Preston Hollow take 14 to 18 weeks from the day permits clear to the final inspection. Foundation work, utility trenching, framing, and the separate kitchen and bath all add up. Prefab options from Boxabl or Plant Prefab can cut several weeks off that timeline. The permit review itself typically adds 3 to 6 weeks before construction starts.
The foundation. If the existing slab isn’t up to habitable-code moisture standards, we may need to add a raised floor or a vapor barrier, and in Preston Hollow’s clay soil that’s where budgets shift. That’s why we inspect the slab before quoting and put the foundation scope in writing up front. Things like wall finish level and kitchen appliance choices also move the final number. Call (361) 204-4652 and we’ll show you exactly where the money goes.
Usually not. A Preston Hollow ADU needs its own subpanel and often a service upgrade at the main house. Older homes in this neighborhood frequently have 100-amp services, and a habitable ADU with a kitchen and HVAC will push that past the limit. We’ll assess your panel on the first visit and include any upgrade cost in the written quote.
Call (361) 204-4652 to schedule a free estimate for your Preston Hollow garage conversion. You’ll get a live person, a written price, and the straight truth about what your garage can become.
Written by Russ Delmar, Owner at Lodgewick ADU Dallas, serving Preston Hollow and the surrounding Dallas area.




