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Home Addition · Flower Mound · TX · (469) 850-7087

Home additions in Flower Mound, TX,
that look like they were always there.

A fixed-price addition project from our Plano-based DFW team serving Flower Mound 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.

500+
Five-star reviews
3-yr
Workmanship warranty
5,875
Projects since 2014
Home Addition in Flower Mound, TX by UHS Remodeling
Flower Mound · 2026
The short answer

How much does a home addition cost in Flower Mound?

A home addition in Flower Mound typically runs $120,000 to $400,000, depending on whether you build out at grade or add a second story, and how much the new space ties into existing plumbing, HVAC, and the roofline. Permits are pulled through the Town of Flower Mound Building Inspections Division (the town issues these, not Denton County) via its eTRAKiT portal, and any tie-in to plumbing or electrical pulls those trades into the scope. A city-specific cost driver here is the master-planned community standard: in places like Bridlewood, Wellington, and Highland Shores, your addition has to match the original brick, stone, and pitched-roof style closely, which often means custom-matched masonry and HOA architectural review before a permit is granted. On larger Flower Mound lots a ground-level addition is frequently feasible, but the new footprint needs an engineered foundation, which adds engineering and slab cost. 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 Flower Mound.

Flower Mound grew up fast in the 1990s and 2000s, which means most of the town’s homes were built to a single moment in time, and many families have now outgrown that original floor plan. A home addition is how Flower Mound homeowners get more square footage without leaving the lot, the school, or the neighborhood they chose on purpose. The good news here is space: master-planned enclaves like Bridlewood, Wellington, Highland Shores, and Stone Hill Farms put large move-up homes on generous lots, so there is often real room to build out a primary-suite wing, a bigger family room, a home office, or a second story. UHS Remodeling designs and builds additions that match your existing brick, rooflines, and ceiling heights so the new space reads as original, not bolted-on. With 5,875+ DFW projects since 2014 and a fixed-price model, you know the number before we break ground.

We build home additions across Flower Mound, including Bridlewood, Wellington, Highland Shores, Stone Hill Farms, Canyon Falls, Chimney Rock, Wildwood, and the Lakeside DFW area near Grapevine Lake.

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 Flower Mound 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.
Daniel B., Co-Founder, Construction Lead at UHS Remodeling
From the field · Flower Mound
An addition in Flower Mound 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

Flower Mound addition ranges by tier.

All ranges include design, materials, labor, permits, and 3-year warranty. Sourced against NARI Cost vs. Value 2025 regional benchmarks.

Tier
Price
What’s included
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.
04 · Also in Flower Mound

Other ways we transform Flower Mound homes.

See all Flower Mound home remodeling services →

UHS Remodeling construction lead Daniel B. reviewing blueprints on a DFW job site
Your UHS team

Your construction lead, Daniel B., runs your addition from framing to final inspection.

Nearby DFW

We serve home additions across nearby DFW communities. See our home additions in Carrollton, The Colony, and Plano.

05 · FAQ

Flower Mound addition questions, answered.

Sourced from NARI Cost vs. Value 2025, Texas Real Estate Commission, International Code Council, and 11 years of fielding the same calls in Flower Mound. Looking for ballpark numbers? Try our cost calculator.

How much does a home addition cost in Flower Mound?
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Most Flower Mound home additions run $120,000 to $400,000. The biggest variables are whether you build a single-story addition at grade or add a second floor, how much new plumbing, electrical, and HVAC the space requires, and how closely the exterior has to match your existing brick and rooflines, which matters in design-controlled communities like Bridlewood and Highland Shores. UHS gives you a fixed price up front so the number does not move mid-project.
Do I need a permit and HOA approval for a home addition in Flower Mound?
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Yes. The permit is issued by the Town of Flower Mound Building Inspections Division through its eTRAKiT portal, not by Denton County, because Flower Mound is an incorporated town with its own building department. If your home is in a master-planned community such as Wellington, Bridlewood, or Stone Hill Farms, you will also need HOA architectural review of the exterior before the town permit is approved. UHS handles the building permit and inspections as part of the project.
Can I add a second story or a ground-floor addition in Flower Mound?
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Often both are options. Many Flower Mound homes in communities like Bridlewood and Wellington sit on sizable lots, so a ground-level addition for a primary suite, expanded family room, or home office is frequently feasible, with an engineered foundation for the new footprint. Where the lot is tighter, a second-story addition adds bedrooms or a bonus space without giving up yard. We design either to match your existing 1990s or 2000s build so the addition looks original.
How long does a Flower Mound home addition take?
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A home addition in Flower typically ranges from $120,000 to $400,000, depending on size, foundation, and whether it is single- or multi-story.
Do I need a structural engineer?
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Yes — every addition we build includes structural engineer review. The cost is included in our fixed quote.
Can you match my existing exterior brick / siding?
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Yes. We source manufacturer-matched brick, stone, and siding. For discontinued lines, we work with local brick dealers to find aged-match material.
How disruptive is an addition?
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Less than a whole-home remodel. We seal the existing house with vapor barriers during framing and only break through the load-bearing wall at the very end of construction.
Do you handle the foundation?
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Yes. We pour all-new slab or pier-and-beam foundation depending on what your existing house uses.
Will an addition need HOA approval?
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Almost always. We prepare full ACC submissions including elevations, materials samples, and site plans.
Can I add a second story?
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Sometimes. We bring in a structural engineer first to check if your existing foundation and load-bearing walls can carry the additional weight.
Is the quote really fixed?
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Yes. Once design is locked and permits are submitted, your price is your price.
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