A fixed-price addition project from our Plano-based DFW team serving Carrollton homeowners, with designers, project leads, and tradespeople who finish on the day they said they would. Eleven years, 5,875 projects, one promise: your quote is your price.
A home addition in Carrollton typically runs $120,000 to $400,000, depending on square footage, whether you build out at grade or add a second story, and how much the new space ties into existing plumbing, electrical, and roofing. We quote every addition as a fixed price, so your number is set before demolition begins. Permits are pulled through the City of Carrollton’s Building Inspection department via its CityServe portal, and a key local driver is that the city requires every contractor (general, plumbing, mechanical, and electrical) to be Texas-licensed AND registered with the City of Carrollton before a permit is issued. A second Carrollton-specific cost factor: many homes sit on mature, tree-lined mid-century lots with limited side-yard room, so additions here often go up or to the rear, and matching the original 1980s brick and rooflines on an established home adds detail work that affects scope and price. 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.
Carrollton is a built-out suburb where the median home dates to roughly 1987-88, so most lots already carry a 35-to-40-year-old house with no easy way to grow but up or out. That is exactly why home additions are one of the most-requested projects we do here. The 1950s-1980s ranch homes in the older east and southeast sections near I-35E have efficient but tight single-story footprints, while the 1980s-90s traditional brick two-stories and the master-planned homes out in Castle Hills often need a primary-suite expansion, a bonus room, or a bumped-out family room rather than a move. UHS Remodeling designs and builds room additions, second-story and primary-suite additions, and in-law/garage conversions across Carrollton on a fixed-price contract, backed by 5,875+ DFW projects since 2014 and a 3-year workmanship warranty.
We build home additions across Carrollton, including Willow Bend, Legacy West, Deerfield, Hunters Glen, Russell Creek, and West Carrollton 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 Carrollton 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, 3-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 Carrollton 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 Carrollton 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 3-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 Carrollton 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 Carrollton. Looking for ballpark numbers? Try our cost calculator.
Yes. Additions are permitted through the City of Carrollton’s Building Inspection department via the CityServe portal under its ‘Remodels & Additions to Single-Family Dwellings’ category. Carrollton also requires every contractor performing the work to be licensed by the State of Texas and registered with the City of Carrollton before a permit is issued. UHS Remodeling handles the permitting on your behalf.
Yes. With Carrollton’s median home built around 1987-88 and many mid-century ranch homes on tree-lined lots with limited side-yard room, we frequently add up or to the rear, including second-story additions, primary-suite expansions, and bonus rooms. We match the existing brick and rooflines and design the new space to flow with the original floor plan.
Most Carrollton home additions run $120,000 to $400,000, driven by size, single-story versus second-story construction, and how the new space connects to existing plumbing, electrical, and roofing. Because Carrollton homes are largely 1980s-era brick traditionals and mid-century ranches, matching the original brick and rooflines is a common cost factor. UHS Remodeling quotes every addition as a fixed price before work starts.
Single-room additions take 10–18 weeks. Multi-room wing additions run 6–11 months. Second-story and estate-scale additions take 10–18 months. Add 2–4 months for design, engineering, and permitting.
Yes, subject to height, setback, and lot coverage limits plus HOA restrictions. Not every foundation is adequate for a second-story load — we run a structural feasibility check early.
Yes. Garage conversions are one of the most cost-effective additions because the foundation, walls, and roof exist. Requires a permit, new flooring, HVAC and electrical tie-in, and HOA approval.
We source matching brick, stone, siding, and roofing. For brick, we match color, size, and mortar joint profile. Matching materials may add 3–6 weeks to procurement.
Yes. Most Carrollton HOA neighborhoods require architectural review for exterior work. The HOA process runs in parallel with the city permit process. UHS handles both submissions.
Usually yes, especially for rear additions and garage conversions. For second-story additions, most homeowners relocate for 4–10 weeks during structural phases.
Yes. Every addition is engineered by a licensed Texas structural engineer. We handle full foundation scope and all structural framing including steel beams and second-story floor systems.
Yes. A well-designed addition typically returns 70–90% of project cost. Master suite and kitchen/great room additions can return close to 100%.
Call (469) 850-7087 or fill out the contact form. Free in-home consultation, feasibility assessment, preliminary ROM within 7–10 business days.
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 Carrollton 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.
