







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Fort Worth
A home addition in Fort Worth typically costs between $80 and $220 per square foot depending on foundation work, finishes, and whether the site needs a concrete pump or special equipment access. Detached structures and sunrooms on acreage lots often land around $90,000 to $180,000 for a 400-to-600-square-foot build, while simple bump-outs can start closer to $35,000. You won’t get that kind of straight number from most contractors before they’ve walked the property, but we put it in writing before any work starts. If you’re adding square footage anywhere from Fairmount to the Haslet border, call us at (682) 255-2399. We’ll price it properly and tell you exactly who’s coming to your property.
Why Sutton ADU Fort Worth Is Fort Worth’s Preferred Home Addition Contractor Company

We’ve built our reputation in Fort Worth on a simple rule: no vague estimates and no strangers at the door. Every technician on your job is background-checked, identity-verified, and photo-badged under the Threshold Standard. Before your build date, you get a name and a photo. When they arrive, they show a matching ID badge. That matters when you’re letting a crew into your home for six weeks.
Homeowners in Arlington Heights, Ryan Place, and Wedgwood have told us what they value most: a written price before demolition, a live person on the phone at midnight when a question wakes you up, and the 365-Day Done Right Promise. That Promise covers defects in workmanship for one full calendar year from project completion. If something isn’t right, we make it right, no haggling. Miles Hartwell has set that standard since 2006, and our Fort Worth crews run on it every day. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office; the people who build on your lot live and work here locally.
Bedroom Addition Contractor in Fort Worth
A bedroom addition in Fort Worth is one of the smartest ways to add square footage without buying a new house, especially in older neighborhoods where lot sizes are generous but homes haven’t kept up with growing families. The work involves framing off an existing exterior wall or building a small detached structure, running HVAC from your current system or installing a ductless unit, and tying the roofline in so it doesn’t look tacked on. On city lots in neighborhoods like Meadowbrook or Carter Riverside, expect permitting through the City of Fort Worth. On acreage further out, the rules change.
Plan for Your Lot, Not Someone Else’s
We scope each bedroom addition based on what’s actually under the soil. Fort Worth clay expands and contracts with moisture, so we don’t pour a standard slab-on-grade without checking drainage first. A proper foundation here may need void forms and a deeper stem wall. That’s not an upsell. It’s the difference between a room that stays square for decades and one that cracks within two seasons.
Written Pricing for the Scope You Actually Need
For a 300-square-foot bedroom addition in Fort Worth, most homeowners pay between $60,000 and $95,000. That includes foundation, framing, roofing tie-in, electrical, insulation, drywall, and finish work. If we’re working around a septic system or wellhead on county land, the price shifts, and we’ll tell you why before you sign anything.
Sunroom Addition in Fort Worth

A sunroom addition in Fort Worth gives you usable space three seasons out of the year and, with the right glass package and insulation, sometimes all four. The job involves building a foundation rated for your soil, framing a fully glazed or partially glazed structure, running electrical for outlets and lighting, and installing climate control. Many Fort Worth homeowners choose a sunroom over a full bedroom addition because it costs less per square foot and doesn’t require the same level of HVAC integration.
Clay-Soil Foundation Design
Fort Worth’s clay soil is the biggest variable on sunroom foundations. We’ve pulled permits for sunrooms in areas like Woodhaven and Ridglea where the ground shifts enough to crack a standard slab within a couple of years. Our approach uses proper subgrade preparation, good drainage, and reinforcement where needed. It adds cost up front and prevents callbacks later.
Real Numbers for a Fort Worth Sunroom
A 200-square-foot sunroom addition on a Fort Worth slab foundation typically runs $45,000 to $75,000. Bigger rooms, better glass, and county septic setbacks push the number higher. We put the exact figure in writing before work starts. No change orders hidden in the margins.
Trusted Brands We Service in Fort Worth
We work with Home Addition Contractor clients who want specific product lines, and our Fort Worth crews have direct experience with Mighty Buildings panels, Boxabl units, and Tuff Shed conversions. These brands aren’t the right fit for every lot, and we’ll tell you honestly when they aren’t. But when they do work, we stock the necessary components locally and can get materials moving faster than a contractor who has to special-order everything from out of state. That speed matters when you’re halfway through framing and a panel arrives damaged.
Common Home Addition Contractor Problems We See in Fort Worth Homes
- City vs. county permitting mix-ups. A contractor quotes your addition using City of Fort Worth setback rules, but your property is actually in unincorporated Tarrant County. The addition encroaches on a required 10-foot side yard, and now you’ve paid for plans you can’t use. We check jurisdiction before we quote.
- Equipment stuck on soft clay. On acreage lots, a concrete pump or crane gets parked too close to the build site after a rain, and the ground gives way. We schedule equipment for access, not just for delivery, and we know which Fort Worth properties need a 40-foot pump because the pour site sits far from the driveway.
- Standard slabs that crack. A slab-on-grade goes down without accounting for Fort Worth’s expansive clay. Two seasons later, you’ve got cracks and moisture issues. We add drainage and reinforcement where soil conditions demand it.
- Septic and well surprises. In far north Fort Worth near Haslet, many homes rely on well and septic. A bedroom addition that ignores minimum distance from the drain field or wellhead can get flagged at inspection. We pull those setback distances before we draw anything.
Pricing for Home Addition Contractor in Fort Worth, TX
A full home addition in Fort Worth runs $80 to $220 per square foot depending on foundation type, finish level, and whether the site needs a long concrete pump haulthe kind of detail that only matters on acreage. Simple bump-outs start around $35,000. A 300-square-foot bedroom addition typically lands between $60,000 and $95,000. A 200-square-foot sunroom runs $45,000 to $75,000. If your lot is in Tarrant County rather than the City of Fort Worth, and you’re working around septic and well setbacks, expect a few thousand more for engineering and foundation adjustments. We give you the exact price in writing before any work starts. Call (682) 255-2399 to schedule a free estimate.
We Also Serve Cities Near Fort Worth
Our crews work throughout the metro, including North Richland Hills, Hurst, Keller, and Arlington. If your property sits on the edge of Fort Worth, near the Haslet border or out toward the county line, you’re still in our service area. For a full look at what we do across the area, see Home Addition Contractor in Fort Worth.
Serving Fort Worth, TX - Our Local Coverage Area
We’re based in the Fort Worth area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Home Addition Contractor in Fort Worth
It depends on your property’s jurisdiction. If you’re inside Fort Worth city limits, you pull City of Fort Worth permits. If you’re on unincorporated land in Tarrant County, you pull county permits, which changes setback, septic, and well rules. We check this before quoting so your plans don’t get rejected on a technicality. Call (682) 255-2399 and we’ll verify jurisdiction for your address.
Septic and well setbacks add engineering time and sometimes force foundation redesigns. You need approved plans showing minimum distances from any existing drain field and wellhead, and the addition has to respect those lines. On a recent job near the Haslet border, a 600-square-foot primary suite had to be positioned around a well and septic system, adding about $4,000 to survey, engineering, and foundation costs. Call us for a written breakdown specific to your lot.
Yes, in some cases. The ordinance encourages gentle density and accessory dwelling units, but it also imposes design and placement rules depending on your zoning. For additions that function as ADUs or detached living spaces, lot coverage and setbacks may differ from what you’d assume. We interpret those rules against your specific survey. Estimates are free.
We recommend a reinforced slab with proper subgrade preparation and drainage, not a standard slab-on-grade. Fort Worth’s clay expands and contracts with moisture, and a sunroom’s large glass area doesn’t tolerate movement well. Void forms and a deeper stem wall may be needed depending on soil test results. We’ll explain exactly what your lot needs before quoting.
It adds a day or two for delivery coordination and sometimes requires a concrete pump instead of a direct chute pour. On an acreage lot where the build sits 200 feet from the driveway, you plan for a 40-foot pump and schedule around soft ground after rain. We factor that into the timeline and the price, so neither surprises you mid-build. Call (682) 255-2399 for an estimate that accounts for actual site conditions.
Written by Miles Hartwell, Owner at Sutton ADU Fort Worth, serving the Fort Worth area since 2006.


