A fixed-price addition project from our Plano-based DFW team serving Dallas homeowners, with designers, project leads, and tradespeople who finish on the day they said they would. Eleven years, one promise: your quote is your price.
A home addition in Dallas typically runs $120,000 to $400,000, depending on whether you’re adding a single room, a primary suite, or a full second story, plus how the new footprint ties into the existing structure. Permits for added square footage go through the City of Dallas Permit Center at the Oak Cliff Municipal Center, submitted via the city’s DallasNow / Develop Dallas online portal. A major Dallas-specific cost driver is the age of the housing stock: with a median build year around 1981 and pockets of pre-1940 homes in East Dallas and Oak Cliff, additions often require upgrading existing foundations, wiring, and plumbing to current code so the old and new sections work as one. Matching original brick and rooflines on these established homes — and working within tight inner-city lots in areas like Lakewood and the M Streets — adds to the budget versus a suburban new build. Our fixed-price model locks the number before work begins. For a line-item look at where the money goes, see our DFW remodel cost guide.
We handle survey, setbacks, engineering, HOA and permits before demolition. If your lot cannot take the footprint, you will hear it at the first walkthrough.
Fixed scope and a written schedule before anyone breaks ground in your yard.
Adding square footage in Dallas means building onto homes that are, on average, already four decades old — the city’s median construction year sits around 1981. In neighborhoods like Lakewood, the M Streets (Greenland Hills), and Kessler Park in Oak Cliff, that often means expanding a 1920s-1940s Tudor or cottage, while Preston Hollow and North Dallas owners typically extend larger homes on bigger lots. A Dallas home addition is rarely a blank-slate build: it’s a tie-in to an existing older structure, matching original brick and rooflines, and frequently a primary-suite, second-story, or great-room expansion on a desirable inner-city lot where moving isn’t an option. UHS Remodeling has remodeled DFW homes since 2014 with a fixed-price model and a 1-year workmanship warranty, so the scope — and the cost — is settled before we break ground.
We build home additions across Dallas, including Willow Bend, Legacy West, Deerfield, Hunters Glen, Russell Creek, and West Dallas Estates.
Site walk, scope (bedroom, master wing, second story), zoning + setback review, budget alignment.
Architectural drawings, structural engineer review, exterior match planning, MEP routing.
City of Dallas plan review, HOA architectural committee, energy code compliance. Average 3-5 weeks.
Foundation, framing, roof tie-in, MEP rough-in, insulation, drywall, finish-out. 12-22 weeks per scope.
Final inspection, punch list, certificate of occupancy filing, 1-year warranty active.
New slab and framing tied into the existing structure.
Matched brick and tinted mortar at the old-to-new seam.
Design and structural engineering run first, and city plan review plus the HOA architectural committee average three to five weeks before anyone breaks ground.
“An addition in Dallas is half permits, half craft. We pre-meet with the city’s plan review before drawings are stamped — that’s why our additions break ground 6 weeks after contract, not 14.”
From our Plano home addition case study — engineering, permits and the brick match. View all →
Which one is right depends on your lot line, your slab and your roof — not on a catalog.
Renderings from our design studies — the finished Dallas projects are above.
Ranges include foundation, framing, roof, systems and finishes — everything but landscaping.
All ranges include architectural drawings, engineering, materials, labor, permits, foundation, framing, MEP, finishes, and 1-year warranty. Sourced against NARI Cost vs. Value 2025 and your city building code requirements.
Single-room addition (250-450 sqft): bedroom, office, sunroom. Exterior match, standard finishes, full MEP.
Master wing or large family room (450-800 sqft): primary suite + bath, formal dining add-on, or great room expansion.
Second story or full custom (800+ sqft): structural foundation work, full second floor, matched exterior, custom millwork.
Additions live or die on setbacks, easements and lot coverage — and every DFW city writes those rules differently. We have permitted additions across Dallas and the neighboring cities, which means we can tell you in one visit whether the footprint you want is legal on your lot.
We deliver home addition across the northern DFW suburbs. See our home addition in Frisco, Allen, and McKinney.
Daniel B. on a DFW job site.
Your construction lead, Daniel B., runs your addition from framing to final inspection.
Sourced from NARI Cost vs. Value 2025, Texas Real Estate Commission, International Code Council, and 11 years of fielding the same calls in Dallas. Looking for ballpark numbers? Try our cost calculator.
Most Dallas home additions fall between $120,000 and $400,000. Where you land depends on the type of addition (a single room versus a primary suite or a full second story), how much of the existing 1950s-1980s structure needs foundation, wiring, or plumbing upgrades to tie in, and how closely the new exterior must match original brick and rooflines. UHS Remodeling prices every addition as a fixed quote before work starts.
Yes. Adding square footage in the City of Dallas requires a building permit through the City of Dallas Permit Center, submitted via the DallasNow / Develop Dallas online portal. Because an addition expands the footprint, the permit set usually covers structural, electrical, plumbing, and mechanical work, and any neighborhood HOA or historic-district rules may add review for setbacks and exterior appearance.
Often, yes — but on Dallas’s older housing stock (median build year around 1981, with pre-1940 homes in parts of East Dallas and Oak Cliff), a second-story addition usually means evaluating and reinforcing the existing foundation and framing to carry the new load. We assess the existing structure first, match the new level to the home’s original roofline and brick, and give you a fixed-price scope, backed by our 1-year workmanship warranty.
A home addition in Dallas typically ranges from $120,000 to $400,000, depending on size, foundation, and whether it is single- or multi-story.
A Dallas home addition takes 12-24 weeks. Garage conversions average 6-10 weeks. Sunrooms take 8-12 weeks. Ground-level additions run 12-16 weeks. Second-story additions take 16-24 weeks. Add 3-6 weeks for permitting and 4-8 weeks if historic district review is required.
Yes. All home additions require City of Dallas building permits including plan review, structural certification, and multiple inspections. Permit fees range $1,500-$5,000. UHS Remodeling handles the entire process.
Yes, but the process involves strict setback requirements, lot coverage maximums, height restrictions, and Board of Adjustment architectural review. Additions must be compatible with existing architecture. We have extensive Park Cities experience.
Dallas conservation districts (Lakewood, M Streets, Swiss Avenue) require additions to be compatible in scale, massing, materials, and character. Design review adds 4-8 weeks. We prepare submissions that satisfy review requirements.
Most Dallas HOAs allow additions but require architectural review committee approval. Requirements address exterior materials, roofline compatibility, and setbacks. We review your HOA CC&Rs during planning and prepare compliant design submissions.
North Texas expansive clay soils swell when wet and shrink when dry. Every addition requires engineered foundation design with soil testing. Foundation costs represent 15-20% of ground-level addition budgets. We work with structural engineers specializing in North Texas conditions.
In many cases, yes. Feasibility depends on existing foundation capacity, zoning height limits, and neighborhood architectural restrictions. Second-story additions add 600-1,500 sqft and cost $200,000-$400,000+ in Dallas.
Home additions recoup 50-70% at resale. In-law suites and primary suite additions deliver the highest returns. In Highland Park and Lakewood, well-executed additions that look original can return even more by increasing square footage without compromising architectural integrity.
Call (469) 850-7087 or schedule a consultation online. We visit your home, evaluate lot feasibility, discuss space needs, and provide a detailed proposal – completely free with no obligation.
North Texas sits on highly expansive clay soil that swells during wet months and shrinks during summer droughts, which can shift foundations by several inches over seasonal cycles. That is why every room addition we build in Dallas and Frisco starts with a foundation plan designed by a licensed structural engineer for the specific soil conditions of the lot. Typical solutions include steel-reinforced slab foundations and concrete piers that reach below the active soil zone, so the new addition moves with the original home instead of pulling away from it. Skipping this step is the most common cause of cracked brick, sticking doors, and separated rooflines in DFW additions.
Tell us what you need more of and we’ll walk the lot, check the setbacks, and give you an honest budget range before you commit to anything.
