A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across North Dallas
Home additions in North Dallas typically run $180 – $420 per square foot depending on scope, and most projects take 10 – 16 weeks from permit submittal to final inspection. If you’re searching for a Home Addition Contractor who puts the price in writing before work starts, you’re in the right place. Lodgewick ADU Dallas serves homeowners throughout North Dallas, from Preston Hollow to the Richardson border, with scoped pricing and a written guarantee on every build. Call (361) 204-4652 to talk through your project and get a real number, not a ballpark you’ll have to chase down later.
Key Takeaways
- Bedroom additions in North Dallas run $85,000 – $160,000 for a standard 12×16 space with permit costs included
- Detached garage-to-ADU conversions on alley-loaded lots need separate building permits, not just interior remodel approval
- North Dallas sits on black-cotton clay that swells and shrinks, so slab work needs soil testing before you pour
- Every Lodgewick project includes The Kingswell Guarantee: written price, written arrival window, clean job site, written workmanship guarantee
Why Lodgewick ADU Dallas Is North Dallas’s Preferred Home Addition Contractor Company
North Dallas homeowners call us because we do the unsexy paperwork first. The permit, the soil report, the HOA design review, the engineering letter. That’s the part that blows up calendars and budgets when it’s skipped, and we don’t skip it. Russ Delmar leads our North Dallas work, and he’s walked enough mid-century ranches near Walnut Hill and Preston to know exactly what the city will flag before a single footing gets dug. Our crews show up in the arrival window we give you, in uniform, background-checked, and they leave the job site cleaner than they found it. That’s The Kingswell Way. It’s not a slogan. It’s what we do on every project in North Dallas.
We’ve worked on additions near NorthPark Center, through the Preston Hollow estate neighborhoods, and in the smaller 1950s ranches clustered around Royal Lane and Hillcrest. Those mid-century homes are some of our favorite projects. They come with real quirks: settled slabs, cast-iron drain lines that need replacement, roof pitches that don’t match anything sold at a big-box lumber yard. Knowing those quirks before we bid is what keeps your price from moving after the first week of demolition.
Bedroom Addition Contractor in North Dallas
A bedroom addition in North Dallas runs $85,000 – $160,000 for a standard 12×16 room with a closet and a half bath, depending on whether you’re building on slab or over a crawlspace, and whether the existing HVAC can carry the extra square footage. Most North Dallas homes built in the 1950s and 1960s have compressors sized for the original floor plan, which means a bedroom addition often requires a ductless mini-split or a second AC zone. That’s a real cost, and we’ll put it in your written estimate on day one, not as a change order in week six.
Slab Work and Soil Conditions
North Dallas sits on the black-cotton clay belt that runs through much of Dallas County. That soil expands when wet and shrinks when dry, which means a poorly engineered addition will crack within two years. We require soil testing before we pour, and we spec pier-and-beam or post-tension foundations based on the actual expansion index of your lot, not a generic number from across town. This is one of the biggest reasons North Dallas additions cost more than the same job in Garland or Mesquite: the dirt here fights back.
Permits and HOA Review in North Dallas
The City of Dallas requires a building permit for any attached or detached bedroom addition, plus separate electrical, plumbing, and mechanical permits. If your home is in a North Dallas neighborhood with an active HOA, like parts of Preston Hollow or the estate districts near Inwood Road, you’ll likely need design review before you can pull a permit. Flat roofs on bedroom additions often get rejected. We handle the full permit package and coordinate HOA submittals so you’re not driving to city hall three times a week.
Russ Delmar and our ADU Builders in North Dallas team have worked through enough local inspections to know what the plan reviewer will flag on the first pass. We build that into our calendar from the start.
Sunroom Addition in North Dallas
A sunroom addition in North Dallas runs $45,000 – $85,000 for a four-season room with glass on three sides, a conditioned HVAC line, and a foundation engineered for our expansive soil. If you’re picturing a screened porch with an Eze-Breeze window kit, that’s a different product and a different price point, usually $18,000 – $35,000. We’ll walk you through both options before you commit to anything.
HOA Roof Pitch and Design Restrictions
This is the one that surprises people. Many North Dallas sunroom projects start as a “simple patio cover” and turn into a 40% change order when the HOA design committee requires the sunroom roof pitch to match the existing house, plus masonry wainscot to match the main structure. We’ve seen it happen on projects near Preston and Northwest Highway. We check your HOA’s design standards before we quote, so our written price already includes the matched roof pitch and the brick or stone wainscot. No surprises after the deposit.
Foundation and Glazing Choices
North Dallas summer heat will cook a poorly glazed sunroom into a greenhouse by July. We spec double-pane, low-E glass with an insulated floor system, and we run a dedicated ductless unit rather than asking your existing AC to carry the extra 200 square feet. Some homeowners choose James Hardie siding for the exterior knee wall to match the main house with zero maintenance. That’s a North Dallas-sensible choice given the hail storms we get every spring.
Trusted Brands We Service in North Dallas
Lodgewick ADU Dallas works hands-on with the ADU and addition products that hold up in Texas heat and expansive soil. We install and finish James Hardie fiber cement on sunroom exteriors and bedroom addition knee walls, because it doesn’t warp or rot in North Dallas humidity. For garage conversions and standalone ADUs, we work with Plant Prefab and Tuff Shed structures, which arrive engineered and ready to finish. Because we’re local to North Dallas, we keep common Hardie trims, fasteners, and flashing in stock, so a simple materials need doesn’t add a week to your schedule while something ships from Ohio.
Common Home Addition Contractor Problems We See in North Dallas Homes
- Settled slabs on mid-century lots. Many North Dallas homes built in the 1950s and 1960s have slabs that settled unevenly over decades of clay-soil movement. If we don’t test the soil and isolate the new foundation, your addition will crack within two years.
- Detached garage conversions that skip the full ADU permit. North Dallas has a high concentration of alley-loaded, detached garages. Homeowners assume the structure already exists so it’s just an interior remodel. The city still requires separate electrical, plumbing, and often fire-separation reviews on a detached structure.
- Sunrooms priced as patio covers. The HOA design review in North Dallas often requires a matched roof pitch and masonry wainscot, which can add 40% to a quote that was never written for those items. We build that into our price from the first written estimate.
- Cast-iron drain lines under 60-year-old slab homes. When you add a bathroom as part of a bedroom addition, the existing cast-iron waste line may be corroded enough that the city requires replacement back to the main. We camera the line during discovery so that cost is in the original written price.
Pricing for Home Addition Contractor in North Dallas, TX
Here’s what North Dallas homeowners should budget, based on our recent scoped estimates:
- Bedroom addition (12×16 with half bath): $85,000 – $160,000
- Sunroom addition (four-season, 14×16): $45,000 – $85,000
- Garage conversion to ADU (detached, alley-loaded): $120,000 – $210,000
- Second story addition over an existing ranch: $220,000 – $380,000
What moves the number in North Dallas specifically: soil testing and foundation engineering, HOA-required design elements like masonry wainscot, HVAC upgrades if your existing system can’t carry the new square footage, and sewer line condition on older homes. We give you a written line-item price before any work begins. If the price ever changes, it’s because you changed the scope. That’s The Kingswell Guarantee, in writing, on every project. Call (361) 204-4652 to schedule your free estimate.
We Also Serve Cities Near North Dallas
While this page focuses on Home Addition Contractor in North Dallas, our crews also take on additions in Dallas proper, Plano, Garland, and Richardson. If you’re just over the city line, call (361) 204-4652 and we’ll let you know if we cover your neighborhood.
Serving North Dallas, TX - Our Local Coverage Area
We’re based in the North 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.
FAQs About Home Addition Contractor in North Dallas
Yes, North Dallas requires a separate building permit for a detached garage converted to an ADU, even if the structure already exists. The City of Dallas treats a detached ADU as a new dwelling unit, which means separate electrical, plumbing, and fire-separation reviews, plus a foundation check. A simple interior remodel permit will not cover adding a kitchen, bathroom, or sleeping area to a detached garage. Call (361) 204-4652 and we’ll pull the right permits the first time.
The City of Dallas requires a geotechnical soil report for most room additions in North Dallas, because the area sits on expansive black-cotton clay. The report determines your lot’s expansion index and dictates foundation type: slab-on-grade with post-tension cables, pier-and-beam, or a separated foundation tied to the existing structure. Most North Dallas additions end up engineered for high expansion indexes, which is built into your quote before we start. Call (361) 204-4652 for a scoped estimate that includes the soil work.
A typical bedroom addition in North Dallas takes 10 – 14 weeks from permit submittal to final inspection, assuming the soil report comes back clean and the HOA design review doesn’t add a board meeting cycle. The biggest calendar risks are city plan-review turnaround and HOA review schedules, both of which we handle for you. Call (361) 204-4652 for a realistic schedule based on your specific lot and scope.
Most North Dallas HOAs will not approve a flat roof on a sunroom addition. Design review committees in neighborhoods like Preston Hollow and the estate districts near Inwood Road typically require the sunroom roof pitch to match the main house, and many also require masonry wainscot to match the existing foundation. This is one reason a “budget” sunroom quote from an out-of-town contractor turns into a 40% change order. Our written price includes HOA-compliant design from the start. Call (361) 204-4652 for a quote that matches your HOA’s standards.
A home addition costs more in North Dallas than in Garland or Mesquite because North Dallas sits on the expansive black-cotton clay belt, which requires deeper foundation engineering and often pier-and-beam work. Add in HOA design review requirements, older plumbing that often needs replacement back to the main, and the higher land values that drive up permit fees and materials delivery costs. It’s not contractor markup. It’s geology and regulation. Call (361) 204-4652 and we’ll show you exactly where every dollar goes in a written line-item estimate.
Written by Russ Delmar, Owner at Lodgewick ADU Dallas, serving North Dallas since 2010.
