Home Addition · Addison · TX · (469) 850-7087
Home additions in Addison, TX,
that look like they were always there.
A fixed-price addition project from our Plano-based DFW team serving Addison 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.
The short answer
How much does a home addition cost in Addison?
A home addition in Addison runs $120,000 to $400,000 depending on size and complexity. A single-room addition (bedroom, bath, office) averages $120K-$180K. Master wings or second stories run $180K-$280K. Custom additions with structural foundation work and matched exterior finishes run $280K-$400K+. For a line-item look at where the money goes, see our DFW remodel cost guide.
01 · Process
How we build a home addition in Addison.
01
Consultation
Site walk, scope (bedroom, master wing, second story), zoning + setback review, budget alignment.
02
Design
Architectural drawings, structural engineer review, exterior match planning, MEP routing.
03
Permits
City of Addison plan review, HOA architectural committee, energy code compliance. Average 3-5 weeks.
04
Build
Foundation, framing, roof tie-in, MEP rough-in, insulation, drywall, finish-out. 12-22 weeks per scope.
05
Walkthrough
Final inspection, punch list, certificate of occupancy filing, 3-year warranty active.
02 · Recent work
Addison home additions, this year and last.
Addison home addition project2026
Addison home addition project2026
Addison home addition project2025
Addison home addition project2025
Addison home addition project2024
Addison home addition project2024
From the field · Addison
“An addition in Addison 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.”
Daniel B.
Co-Founder, Construction Lead
03 · Transparent pricing
Addison addition ranges by tier.
All ranges include design, materials, labor, permits, and 3-year warranty. Sourced against NARI Cost vs. Value 2025 regional benchmarks.
Essential
$120–180K
Single-room addition (250-450 sqft): bedroom, office, sunroom. Exterior match, standard finishes, full MEP.
Refined
$180–280K
Master wing or large family room (450-800 sqft): primary suite + bath, formal dining add-on, or great room expansion.
Custom
$280–400K+
Second story or full custom (800+ sqft): structural foundation work, full second floor, matched exterior, custom millwork.
How much does a home addition cost in Addison, TX?
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A home addition in Addison typically ranges from $120,000 to $400,000, depending on size, foundation, and whether it is single- or multi-story.
How long does an Addison home addition take?
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Single-room additions take 12–22 weeks. Multi-room wing additions run 8–13 months. Second-story and estate-scale additions take 12–20 months.
Does Addison allow second-story additions?
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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.
Can I convert my garage into living space in Addison?
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Yes. Garage conversions are cost-effective because the foundation, walls, and roof exist. Requires a permit, new flooring, HVAC and electrical tie-in, and HOA approval.
Can I add to my Addison condominium or townhome?
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Generally no. Mid-rise condominiums and attached townhomes do not permit additions. Interior renovations or kitchen/bath remodels are the alternative.
How do you match the exterior of a new addition to an original Addison home?
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We source matching brick, stone, siding, and roofing. For brick, we match color, size, and mortar joint profile. Matching materials may add 4–8 weeks to procurement.
Does my Addison HOA need to approve the addition?
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Yes. Most Addison HOA neighborhoods require architectural review. The HOA process runs in parallel with the city permit process. UHS handles both submissions.
Can I live in my Addison home during an addition?
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Usually yes, especially for rear additions and garage conversions. For second-story additions, most homeowners relocate for 5–12 weeks during structural phases.
Do you handle structural engineering and foundation work?
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Yes. Every addition is engineered by a licensed Texas structural engineer. We handle full foundation scope and all structural framing including steel beams.
How do I get a free Addison addition estimate?
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Call (469) 850-7087 or fill out the contact form. Free in-home consultation, feasibility assessment, preliminary ROM within 7–10 business days.
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