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Home Addition · Sachse · TX · (469) 850-7087

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

A fixed-price addition project from our Plano-based DFW team serving Sachse 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 Sachse, TX by UHS Remodeling
Sachse · 2026
The short answer

How much does a home addition cost in Sachse?

A home addition in Sachse typically runs $120,000 to $400,000, depending on square footage, whether it’s single- or two-story, and how much new plumbing, electrical, and HVAC the space requires. Permits and inspections run through the City of Sachse Development Services Department, and since July 8, 2025 every permit must be submitted through the city’s SmartGov online portal — your contractor has to register an account before a permit can even be pulled. A city-specific cost driver here is Sachse’s two-county split: an addition expands your home’s footprint, so the plat and setbacks must be verified against the correct county records — Dallas County on the south side, Collin County on the north — before design is finalized. Most Sachse additions are on 2000s-era homes, which means matching existing foundation, brick, and roof pitch (rather than fighting an old structure) keeps budgets predictable. UHS works on a fixed-price model with a 3-year workmanship warranty. 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 Sachse.

Most Sachse homes were built in a single decade-long building wave, with a median construction year around 2005 — so the typical house here is now 18-25 years old, and roughly 84% are detached single-family homes sitting on real suburban lots. That combination is exactly why home additions make sense in Sachse: families who moved up into Woodbridge or one of the city’s 2000s-era estate subdivisions love the location and don’t want to relocate, but they’ve outgrown the original floor plan. Rather than buying new, they expand — a primary-suite addition, a bonus room over the garage, a sunroom, or a second-story buildout. UHS Remodeling builds additions that match your home’s existing brick, rooflines, and ceiling heights so the new square footage reads as original, not bolted-on, with a fixed price agreed before we break ground.

We build home additions across Sachse — in the Woodbridge golf-course community that spans Sachse and Wylie, plus established estate subdivisions like Sachse Ranch Estates, Cedar Creek Estates, and Brookview Estates, and neighborhoods near Heritage Park.

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 Sachse 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 · Sachse
An addition in Sachse 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

Sachse 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 Sachse

Other ways we transform Sachse homes.

See all Sachse 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 deliver home additions across nearby DFW communities. See our home additions in home additions in Wylie, Garland, and Rowlett.

05 · FAQ

Sachse 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 Sachse. Looking for ballpark numbers? Try our cost calculator.

Do I need a permit to add on to my house in Sachse?
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Yes. Home additions are permitted and inspected by the City of Sachse Development Services Department, and since July 8, 2025 all permits must be filed through the city’s SmartGov online portal — your contractor registers an account to pull the permit. Because the addition expands your footprint, the plat and setbacks are checked against the correct county (Dallas on the south side of Sachse, Collin on the north). UHS handles the permitting and inspections as part of the project.
What kinds of home additions does UHS build in Sachse?
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We build the additions Sachse families ask for most as they outgrow their 2000s-era homes: primary-suite additions, room and bonus-room expansions, sunrooms, garage conversions, and second-story buildouts. Because roughly 84% of Sachse homes are detached single-family on suburban lots, there’s usually room to expand outward or upward. We match your existing brick, ceiling heights, and roof pitch so the new space looks original to the house.
How much does a home addition cost in Sachse, TX?
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Home additions in Sachse generally range from $120,000 to $400,000. The final number depends on the size of the addition, whether it’s a single-story or two-story buildout, and how much new plumbing, electrical, and HVAC the space needs. Since most Sachse homes date to the 2000s, matching the existing foundation, brick, and roofline keeps the project predictable. UHS Remodeling gives you a fixed price before construction starts, backed by a 3-year workmanship warranty.
How long does a Sachse home addition take?
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Single-room additions take 10-18 weeks including permitting. Multi-room wing additions run 6-11 months including design and permitting. Second-story additions and estate-scale projects take 10-16 months.
Does Sachse allow second-story additions?
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Yes, second-story additions are permitted in most Sachse residential zones, subject to maximum building height, setback, and lot coverage requirements. Not every original foundation is adequate for a second-story load – we run a structural feasibility check early in design.
Can I convert my garage into living space in Sachse?
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Yes. Garage conversions are one of the most cost-effective Sachse additions because the foundation, walls, and roof already exist. We convert garages into home offices, playrooms, gyms, and in-law suites. The conversion requires a permit, new flooring, and HVAC/electrical tie-in.
How do you match the exterior of a new addition to an original Sachse home?
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We source matching or visually identical exterior materials – brick from the same manufacturer or salvaged brick yards, stone matched to the existing, siding and roofing matched. Matching materials may add 3-6 weeks to procurement but ensures the addition does not look bolted-on.
Does Sachse require permits and HOA approval for additions?
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Yes. The City of Sachse Building Inspection Department requires permits for any addition. Some Sachse neighborhoods also have HOA architectural review requirements. UHS handles both submissions.
Can I live in my Sachse home during an addition?
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Usually, yes – especially for rear additions and garage conversions that do not break into the existing home until the final tie-in phase. For second-story additions, most homeowners relocate for 4-10 weeks during structural phases.
Do you handle structural engineering and foundation work?
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Yes. Every addition we build is engineered by a licensed Texas structural engineer. We handle the full foundation scope and all structural framing including steel beams, load transfers, and second-story floor systems.
Will a Sachse home addition increase property value?
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Yes. A well-designed Sachse addition typically returns 70-90% of project cost on resale. Master suite expansions and kitchen/great room extensions return close to 100%. An addition also lets a family stay in the neighborhood rather than selling and moving.
How do I get a free Sachse addition estimate?
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Call UHS Remodeling at (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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Home Addition in Sachse, TX