Trusted ADU for Dallas Homeowners
Adding an accessory dwelling unit in Dallas is one of the smartest moves a homeowner can make right now, whether you’re after rental income, space for aging parents, or a quiet backyard office. But getting from a bare patch of yard to a permitted, finished ADU takes a builder who understands Dallas zoning, setbacks, the permitting desk at 320 E. Jefferson Boulevard, and the soil conditions that shape how a foundation gets poured here. Kingswell has been holding every job to one written standard since 2006: the price is set before work starts, the arrival window is real, the site is left clean, and the work carries a written guarantee. If you’re weighing an ADU in Dallas, call (512) 842-4610 and we’ll talk through your lot, your budget, and what’s actually possible. Brent Calloway leads our team, and he’ll be the first to tell you the same thing we tell every homeowner in Dallas: no surprises, no shortcuts, and a promise in writing.
What Our ADU Service Includes
An ADU project in Dallas touches more than framing and drywall. It involves grading, foundation work, weatherproofing for North Texas summers, and the kind of finish detail that makes a detached unit feel like a real home instead of a converted shed. Below is exactly what we handle, start to finish.
Detached ADU Construction
A detached ADU is a standalone structure, usually built in the rear yard, with its own address, its own utility connections, and full separation from the main house. You need this if you want maximum privacy for a tenant, a separate home for a parent, or a rental unit that doesn’t share a wall with your family’s daily life. Kingswell handles every phase, from the initial lot assessment and Dallas permit submittal through foundation, framing, roofing, HVAC rough-in, and final finish. We build to the same standard across every Kingswell trade, so the roof, the door systems, and the insulation all meet one written promise.
Garage Conversion ADU
Converting an existing garage into an ADU is often the fastest path to extra living space in Dallas, because the shell, foundation, and roof are already there. You need this if your garage has become a storage catch-all and you’d rather turn it into a one-bedroom unit with its own kitchenette and bath. We assess the existing slab and framing first, then handle the electrical, plumbing, insulation, and finish work required to bring the space up to Dallas residential code. A garage conversion in Dallas usually beats a from-scratch build on both cost and timeline.
ADU Interior Finish and Design
Interior finish is what separates a unit that rents in a week from one that sits on the market. We’re talking sheetrock, cabinetry, millwork, flooring, tile, lighting, and the small daily-use details like closet systems and bathroom fixtures. You need this once the structure is weather-tight and you’re ready to make the space livable and inviting. Kingswell coordinates the finish work so it flows from rough inspection to final walkthrough without the start-stop delays that plague multi-crew jobs.
Foundation and Site Preparation
Dallas sits on expansive clay soils that swell with rain and shrink in dry heat, which means site prep and foundation work have to be done right or everything above them suffers. This phase includes grading, drainage planning, and forming the slab or pier foundation to match the City of Dallas permitting requirements for your zone. You need this first, before any vertical framing begins, and it matters most on lots with slope, tree roots, or poor drainage. We’ve built enough ADUs in Dallas to know where the soil will fight you.
Utility Connection and Permitting
An ADU needs its own permitted connections for water, sewer, and electrical service, and Dallas requires specific documentation at each stage. This includes the site plan, the plumbing riser diagram, the electrical load calculation, and the energy compliance check. Kingswell manages the permit process with the City of Dallas from submittal to final inspection, so you’re never left holding a stack of forms wondering what’s missing. We also coordinate disconnect and reconnect work with Oncor for the electrical service when the job calls for it.
Insulation and Weatherproofing
Dallas summers push attic temperatures past 140 degrees, and a poorly insulated ADU becomes an oven by July. This includes the wall cavity insulation, attic insulation, window and door sealing, and a weather barrier system that handles both the heat and the occasional North Texas ice storm. You need this before the drywall goes up, and it’s one of the areas where a builder with a sharp eye saves you money on utilities for the life of the unit. We meet or exceed the current Dallas energy code on every ADU we finish.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for ADU
Every ADU we build incorporates fixtures, hardware, and systems from brands we know well enough to install correctly the first time and stand behind. We work extensively with Clopay and Amarr garage door systems on garage conversion ADUs in Dallas. When an existing garage door becomes the front wall of a studio unit, or gets replaced with glazing and a proper entry, the track, spring, and panel work has to be framed and flashed carefully. We’ve installed and retrofitted Clopay and Amarr doors on dozens of Dallas conversions.
Wayne Dalton doors also show up frequently in mid-century Dallas neighborhoods like Casa View and Lochwood, where original garage systems are often still in place. Our team knows the older Wayne Dalton hardware and the correct replacement parts for it. Whether your ADU involves a Craftsman door opener, a Clopay panel, a Wayne Dalton track, or any other make, we handle it as part of the build. And if the garage door itself just needs service before conversion begins, our related garage door service covers that same standard.
Signs You Need ADU Right Now
- You’re turning away rental income every month because you don’t have a unit to offer. Dallas rental demand continues to climb, especially in neighborhoods near White Rock Lake and the Medical District. A finished ADU in Dallas can generate monthly rent that meaningfully offsets your mortgage. The sooner the unit is built and permitted, the sooner that income starts.
- You need a home for a parent or adult child, and a shared wall isn’t working. Multigenerational living sounds noble until the second week of sharing one kitchen. A detached Dallas ADU gives everyone their own door, their own climate controls, and their own rhythm. Kingswell builds these units with the same sound insulation and privacy standards we’d want for our own families.
- Your garage has become dead square footage and you need living space now. A two-car garage full of boxes costs you money every month in a Dallas market where square footage commands a premium. Converting it into a permitted ADU turns that dormant space into a studio, a home office, or an income unit.
- You work from home and your current setup isn’t sustainable. A backyard ADU becomes a dedicated office with a door that closes, a separate HVAC zone, and zero commute. Dallas homeowners in Lake Highlands and East Dallas are doing this in growing numbers, especially those who need client-facing space that doesn’t require walking through the house.
- Your lot has room and you want to increase resale value while rates are manageable. An ADU adds appraised value and makes a Dallas property stand out to future buyers. Kingswell can walk your lot, check your zoning against the Dallas ADU ordinance, and tell you whether a detached unit or garage conversion makes more sense.
Our ADU Process - Step by Step
We’ve refined our ADU process across dozens of Dallas projects so you always know where things stand and what happens next. Here’s how it goes.
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Feasibility walk and site review. We visit your Dallas property, look at the lot dimensions, check the zoning and setbacks for your specific address, and identify any easement or drainage issues that could affect placement. Brent Calloway or a senior project lead walks the site with you so nothing gets missed. This step produces a realistic yes or no before you spend a dollar on design.
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Written plan and fixed price. We measure the existing structure if it’s a conversion, or we survey the build site if it’s a detached unit. Then we produce a written estimate that covers the ADU scope we discussed, from foundation through finish, with allowances noted in plain language. The price you approve is the price you pay. No change orders appear unless you request a change.
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Permit submittal with the City of Dallas. We prepare the drawings, the site plan, and the supporting documents required by Dallas Development Services, then submit and track the permit through approval. We handle corrections requested by the plan reviewer and keep you updated on timeline. This is where most Dallas ADU projects stall, and it’s where our process keeps moving.
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Construction and trade coordination. The build runs on a schedule that sequences foundation, framing, rough-in, inspections, insulation, drywall, and finish in the right order. Because Kingswell operates across twelve trades under one written standard, we coordinate every discipline without the finger-pointing that happens when separate contractors share a site. The site stays clean at the end of every work day.
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Final inspection and walkthrough. We schedule the city’s final inspection, address any punch-list items, and walk the completed ADU with you room by room before we call the job done. You receive the written Kingswell Guarantee covering the work, and we explain exactly what’s covered and for how long. If anything inside that guarantee period isn’t right, we come back and make it right at no charge.
How Much Does ADU Cost in Dallas?
ADU costs in Dallas span a wide range because every lot, every scope, and every finish level differs. A straightforward garage conversion with a kitchenette and full bath typically runs $90,000 to $150,000 depending on the existing structure’s condition and the finishes you choose. A detached one-bedroom ADU in Dallas generally lands between $150,000 and $250,000, with larger two-bedroom units running above that. The specific number depends on the foundation type, the utility run distance from the main service, the level of interior finish, and what the Dallas zoning for your address requires.
What affects the price most: whether you’re converting or building new, how far your sewer and electrical lines need to run, the slab or pier type the soil calls for, and the cabinetry, flooring, and fixture allowances you select. The best way to avoid overpaying is to lock a written price before work starts, which is exactly how Kingswell operates. Our free estimate includes the full line-item scope, the permit fees, and the finish allowances, so you see the entire picture before you commit. No vague allowances and no open-ended time-and-materials clauses.
ADU Near Dallas - Our Service Area
Kingswell serves homeowners across Dallas and the surrounding communities, including Garland, Mesquite, Richardson, Irving, and Arlington. Most Dallas ADU projects are reached within the same week for the initial feasibility walk, and our 24/7 live-answer line means you can always reach a human being when you have a question about your project. We’re the ADU team Dallas homeowners call when they want one company accountable for the entire build from foundation to finish. If you’re considering an ADU and want to see how the whole Kingswell family of trades supports each job, start at our home page for the full picture.
Serving Dallas, TX - Our Local Coverage Area
We’re based in the Dallas area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - ADU in Dallas
An ADU, or accessory dwelling unit, is a self-contained living space with its own kitchen, bathroom, and entrance, built on the same lot as a single-family home. In Dallas, ADUs can be detached backyard units, garage conversions, or attached additions with a separate entry. Kingswell builds all three types under the same written guarantee that covers every trade in our family.
A typical garage conversion ADU in Dallas takes 4 to 6 months from permit submittal to final inspection, while a detached new-build ADU usually runs 7 to 12 months depending on scope and weather. The largest time variable is the City of Dallas permit review, which we manage on your behalf. Call (512) 842-4610 for a timeline estimate specific to your lot and project scope.
A garage conversion ADU in Dallas typically costs $90,000 to $150,000, and a detached one-bedroom ADU generally runs $150,000 to $250,000 based on finishes and site conditions. The price depends on foundation type, utility work, permit requirements, and your finish selections. Kingswell provides a written estimate with the full line-item scope, and that price is fixed before any work begins.
Yes, we prepare and submit the full permit package to Dallas Development Services and track it through every stage of review. We handle any corrections the plan reviewer requests and coordinate the required inspections. You won’t be left managing paperwork or chasing the city on your own.
Yes, we regularly incorporate Clopay and Amarr garage door systems into ADU garage conversions in Dallas, whether the door is being replaced, reframed, or preserved as part of the design. We also work with Wayne Dalton and Craftsman hardware when those systems are already in place. Our related garage door service team handles any door repair or replacement needed before or during the conversion.
Every Kingswell ADU carries our written 365-Day Done Right Promise. If anything in the scope of work isn’t done right inside that guarantee period, we come back and make it right at no charge. The guarantee is in writing, it’s specific, and it applies to the work we performed, not buried in fine print.
Start by clearing the proposed build area or garage of stored items, and make sure crews have reasonable access to the rear yard. We handle the site assessment, the permit drawings, and the utility coordination. The first step is a free feasibility walk so we can confirm what your lot and zoning allow, then we guide you through everything else.
Schedule Your ADU Service in Dallas Today
One call starts the whole process. Reach us at (512) 842-4610 for a free feasibility walk and a written estimate, and you’ll have the facts you need to decide whether an ADU makes sense on your Dallas lot. No pressure, no vague numbers, and no obligation. Brent Calloway and the Kingswell team will walk you through the scope, the permit path, and the price, then let you make the call.
Written by Brent Calloway, Owner at Kingswell, serving Dallas since 2006.