Master suite expansions, kitchen extensions, second stories & garage conversions for Historic District, Valley View, Mercer & Brookhaven homes
Quick Answer: A home addition in Farmers Branch, TX costs $50,000 to $580,000+ in 2026. Single-room rear additions (master suite expansion, sunroom, home office) start at $50,000–$150,000. Multi-room wing additions (master wing, kitchen/great room extension) run $150,000–$320,000. Second-story additions and full garage conversions reach $320,000–$580,000+. UHS Remodeling: Plano-based, licensed, insured, 4.9-star rated, 500+ verified reviews, 3-year written warranty. Free consultation: (469) 850-7087.
Farmers Branch home additions are one of the most cost-effective moves a homeowner can make in this market. Most Farmers Branch homes were built between 1960 and 1995 with footprints between 1,400 and 3,200 square feet — big enough to live in comfortably, but small enough that growing families or move-up buyers often need more space. Rather than selling and buying a bigger home (at today’s prices and interest rates), adding 400–1,500 sq ft onto an existing Farmers Branch home typically delivers better financial value and lets the family stay in the neighborhood, schools, and commute they already like.
At UHS Remodeling, we handle every phase of Farmers Branch addition projects: feasibility studies (lot coverage, setbacks, HOA review where applicable), architect and structural engineer coordination, City of Farmers Branch permitting, excavation and foundation work, framing and structural, envelope matching (brick, stone, siding, roofing), full interior finish, integration with existing HVAC/electrical/plumbing systems, and final punch-list. Every project is delivered with one dedicated W-2 crew, fixed-price contracts with full line-item transparency, daily photo updates, and a written 3-year workmanship warranty.
Every Farmers Branch addition project is different, but our work generally falls into three scope tiers. Here is how to think about budget and what each tier delivers.
This tier covers targeted additions that solve a specific need without reshaping the home. Scope includes: master bedroom expansion, walk-in closet addition, sunroom or screened porch, rear family room, home office addition, mudroom and laundry expansion, dedicated playroom or home gym, or primary bathroom expansion. Typical size: 200–500 square feet. Scope: new foundation (pier-and-beam or slab), framing, matching exterior envelope (brick, stone, siding, roofing), matching window profiles, integration with existing HVAC/electrical/plumbing, full interior millwork and trim, and finishes to match the existing home. Timeline: 9–16 weeks including permitting.
The core of Farmers Branch addition work. This tier serves homeowners who want to add a full wing to the home — typically 500–1,200 square feet covering multiple rooms. Common scopes: rear great room + kitchen extension + covered porch; master suite wing (bedroom, bath, dressing room); kid or in-law wing (bedroom, bath, playroom, study); or a dedicated entertaining wing. Scope includes everything in Tier 1 plus: structural engineering, tie-in of HVAC zones, new plumbing rough-in, dedicated electrical sub-panel, windows and doors matched to the existing home, full interior finish with custom millwork, and coordination with interior designer. Timeline: 5–10 months including design and permitting.
The most ambitious Farmers Branch additions reshape the entire home. Scope includes: full second-story additions over an existing ranch or single-story home (1,000–2,000 sq ft upper level with master suite, additional bedrooms, bathrooms, office); full garage conversions to living space (rec room, office, home gym, in-law suite); basement or attic conversions where the original home has unused space; and outdoor living pavilions with kitchens, fireplaces, and covered terraces. These projects require full architectural and engineering coordination and City of Farmers Branch permitting. Timeline: 9–15 months including design, permitting, and construction.
| Scope | % of Total | Single Room ($105K) | Wing ($230K) | Second Story ($450K) |
|---|---|---|---|---|
| Foundation & Structural | 14–20% | $18,000 | $38,000 | $77,000 |
| Framing & Envelope (match) | 16–22% | $21,000 | $47,000 | $94,000 |
| Interior Finish & Millwork | 18–24% | $23,000 | $51,000 | $104,000 |
| Systems (HVAC/plumb/elec) | 10–14% | $12,000 | $27,000 | $54,000 |
| Kitchen / Bath (if included) | 10–18% | $13,000 | $30,000 | $60,000 |
| Labor & Project Management | 14–18% | $16,000 | $33,000 | $65,000 |
| Design, Engineering & Permits | 4–7% | $2,000 | $4,000 | $(4,000) |
One of the most requested Farmers Branch additions. Many 1970s and 1980s Farmers Branch homes were built with small primary bedrooms, basic master bathrooms, and minimal closet space. We add 350–700 sq ft master wings including new primary bedroom, spa bath with freestanding tub and walk-in shower, dual walk-in closets, and sometimes a small dressing area. The addition ties into the existing home through a hallway that preserves the original floor plan.
The second-most requested scope. Many original Farmers Branch homes have small kitchens closed off from the rest of the home. We bump out 250–700 sq ft to the rear of the home, expanding the kitchen and adding a connected family room or breakfast area. The new space features oversized islands, walls of glass opening to the backyard, and vaulted or coffered ceilings.
Farmers Branch has a large inventory of single-story ranch homes that homeowners want to expand vertically. Second-story additions add 1,000–2,000 sq ft and typically include the new primary suite, additional bedrooms, bathrooms, and sometimes a media or study loft. We engineer the new floor system carefully (steel beams, wall reinforcement, foundation upgrades) and match the exterior envelope to the existing home. Second-story additions typically double the usable square footage without buying land.
Converting an attached garage into living space is one of the most cost-effective Farmers Branch additions because the foundation, walls, and roof already exist. Common garage conversions include home offices, playrooms, gyms, in-law suites, and short-term rental units. The conversion requires a permit, new flooring, full HVAC and electrical tie-in, and (depending on use) new plumbing.
Covered outdoor living pavilions (200–500 sq ft) with ceiling fans, outdoor kitchens, fire features, and integrated lighting are popular Farmers Branch additions. Most backyards have the space to support a meaningful outdoor living area.
The City of Farmers Branch Building Inspection Department enforces setback, lot coverage, and height requirements on all additions. Key requirements that affect design:
UHS Remodeling has walked the City of Farmers Branch permitting process and major HOA review processes dozens of times. We handle the entire submission, review, revision, and inspection cycle on behalf of our clients.
“We added a 650 sq ft master wing to our 1979 Brookhaven home — new primary bedroom, spa bath, and walk-in closet. UHS matched the original brick exactly, handled the city permitting, and kept the whole project on the fixed-price contract through 6 months of construction. Final invoice was $215,000, 1.5% under the contract price. The addition looks like it has always been part of the house.”
— Verified Google review, UHS Remodeling
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