A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateTrusted Room Addition Contractor for Fort Worth Homeowners
Adding square footage to your Fort Worth home is one of the smartest investments you can make, but only if the project runs clean from day one. That means a written price before anyone swings a hammer, a defined scope of work, and a crew that shows up when they say they will. A Fort Worth Room Addition Contractor like Benson ADU Fort Worth delivers exactly that. Led by Troy Eastman, our team builds room additions, in-law suites, sunrooms, and ADU conversions across Fort Worth with fixed pricing, background-checked crews in uniform, and a 365-Day Done Right Promise stamped on every project. Call (682) 204-9686 and you’ll get a live person, a straight answer, and a free estimate that won’t shift on you later.
Key Takeaways:
- A room addition in Fort Worth typically runs $180 – $340 per square foot depending on scope, finish level, and access.
- Benson ADU Fort Worth writes the price down before any work starts. No verbal estimates, no change orders billed after the fact.
- Every project carries a 365-Day Done Right Promise and a written guarantee.
- We build with researched, third-party-verifiable prefab brands like Cover, Dvele, and Boxabl, plus James Hardie cladding.
- Live phone support around the clock. Call (682) 204-9686 for a free estimate.
Sunroom Builders
Sunroom Builders in Fort Worth specialize in glass-forward additions that bring natural light into your home without the full cost of a site-built room addition. A sunroom is the right move when you want a bright morning coffee spot, a plant room, or a three-season hangout that doesn’t require extending your HVAC system. Benson ADU Fort Worth designs and builds sunrooms as both site-built structures and prefab panel systems, with pricing typically falling between $25,000 and $65,000 depending on glazing type, foundation work, and whether you add heating or cooling. We’ll walk you through the trade-offs between a four-season glass room and a lighter three-season build so you don’t overspend on features you won’t use.
Prefab Panel Sunrooms
Prefab panel sunrooms cut weeks off a traditional build timeline because wall and roof sections arrive pre-cut and pre-glazed. That means less time with an open foundation in your yard, fewer weather delays, and a cleaner job site overall. We source panels from brands like Dvele and Cover, which you can research independently before you ever sign anything.
Site-Built Glass Additions
When your sunroom needs a custom footprint or has to match an existing roofline, site-built is the better path. We frame it on site, run electrical for outlets and ceiling fans, and finish the interior with flooring that handles Fort Worth’s summer heat without warping. Every site-built sunroom from Benson ADU Fort Worth includes a written price up front and a 365-Day Done Right Promise in writing.
Room Additions
Room Addition Contractor - Haltom City services and Fort Worth builds cover everything from a single bedroom bump-out to a full primary suite extension, and in Fort Worth they’re one of the most direct ways to add resale value and daily livability. Homeowners typically pursue a room addition when the house still works, but the square footage doesn’t. Whether you’re adding a nursery, a home office, or a larger living room, Benson ADU Fort Worth prices the job before demo starts and holds that number. Expect to budget $60,000 to $140,000 for a standard room addition in the Fort Worth market, with finish level, foundation type, and roofline complexity driving the spread.
Bedroom and Office Additions
A Room Addition Contractor in Kennedale or Fort Worth single-bedroom or office addition is usually an 8- to 14-week build once permits clear, depending on whether you’re on a slab or a pier-and-beam foundation. We pull the permits, coordinate inspections, and send you photo updates at every milestone so you never wonder what happened on site that day. The written price we give you covers framing, drywall, paint, flooring, electrical, and the exterior finish.
Primary Suite Extensions
Adding a primary suite with a bathroom and walk-in closet is a larger lift, typically in the $110,000 to $220,000 range in Fort Worth. The biggest cost drivers are plumbing rough-ins, window count, and whether you want a tray ceiling or custom millwork. We’ll show you line-item pricing on every one of those choices before you commit, so there’s no mystery in the final number.
Modular Home Addition
Modular Home Addition work means your new space is built in a factory to precise specifications, then delivered and set on your property. That’s a different animal from a site-built addition, and it appeals to Fort Worth homeowners who want a tighter build timeline and less on-site disruption. Benson ADU Fort Worth is authorized to work with Boxabl and Mighty Buildings systems, both of which go through third-party engineering and code review before they ever arrive on a truck. Modular additions typically run $150 to $280 per square foot installed, depending on foundation requirements, utility hookups, and site access.
Factory-Built Precision and Timeline
Because modular sections are built indoors, weather doesn’t stall framing, and quality control happens before delivery, not after. That means fewer punch-list surprises and a faster path to move-in. Once the modules arrive in Fort Worth, our crew handles the set, the marriage line sealing, the mechanical connections, and the finish work.
When Modular Beats Site-Built
Modular makes the most sense when you have a simple, rectangular addition plan and decent truck access to your lot. If your addition needs to wrap around an existing structure or match a complex roofline, site-built usually wins. Either way, we’ll show you the numbers for both approaches in your written estimate and let you choose with real data, not a sales pitch.
Home Addition Plans
Home Addition Plans are the architectural drawings and engineering specs that define your project before a single material gets ordered. In Fort Worth, your addition plans have to satisfy city zoning rules, setback requirements, and structural engineering standards, which is where most homeowners get bogged down. Benson ADU Fort Worth handles plan development in house, from the as-built measurements through permit submittal. Plan costs typically run $2,500 to $8,000 depending on the addition’s size and whether you need structural engineering for things like beam sizing or foundation tie-ins.
Setbacks, Zoning, and Permits
A setback is the required distance between your structure and the property line. Fort Worth enforces these by zoning district, and getting them wrong means a stop-work order or a forced redesign. Our team checks your lot’s setback requirements before we draft plans, which saves you the pain of paying for drawings that can’t be permitted.
From Drawing to Permit-Ready
We’ll go from concept sketch to permit-ready plans in roughly three to five weeks, depending on the city’s current review queue. You’ll see and approve the plans before they’re submitted, so nothing gets filed that doesn’t match what you actually want. Once the permit is issued, we build exactly to those approved drawings, and any change gets priced in writing before it’s made.
In Law Suite Builders
In Law Suite Builders focus on attached or detached living spaces designed for multigenerational households: a private entrance, a small kitchen or kitchenette, a bedroom, and a full bath. In Fort Worth, in-law suites are one of the fastest-growing addition types because they solve two problems at once, housing aging parents or returning adult kids while adding rental-ready square footage. Benson ADU Fort Worth builds in-law suites as both attached additions and detached ADU structures, with typical pricing from $90,000 to $180,000 depending on whether you’re adding a kitchen and whether the suite is attached or separate.
Attached In-Law Suites
An attached in-law suite shares a wall with the main house but has its own entrance, usually through a side door or converted garage bay. That keeps utilities simpler and costs lower than a detached build. The key design consideration is sound isolation between the suite and the main living area, which we address with double-stud walls and solid-core doors.
Detached ADU Structures
A detached in-law suite is an ADU in everything but name: a separate structure in the backyard with full independence from the primary residence. We build these using prefab systems from Cover and Mighty Buildings, which arrive as panelized or modular components and get assembled on a prepared foundation. Detached builds cost more, but they’re also the most rentable configuration if income is part of your long-term plan.
ADU Conversion
ADU Conversion turns underused square footage you already own into a legal, rentable dwelling unit. Think garage conversions, pool house rebuilds, or attached storage rooms transformed into a studio with a bathroom and kitchenette. In Fort Worth, ADU conversions typically cost $70,000 to $150,000 depending on what’s already in place: a converted garage with existing electrical and slab is on the lower end, while a from-scratch conversion with new plumbing is higher. Benson ADU Fort Worth handles the entire conversion, from the feasibility check through final inspection.
Garage to ADU
A garage conversion is the most common ADU Conversion we build in Fort Worth because the foundation and roof already exist. The big cost variables are adding plumbing for a bathroom, insulating and finishing the walls, and replacing the garage door with a proper exterior wall and entrance. We’ll tell you honestly whether your garage is a good conversion candidate or whether you’d be better off starting fresh.
Feasibility and Code Compliance
Before we quote a conversion, we check three things: the existing structure’s condition, the required ceiling height for habitable space, and the electrical service capacity. Some older Fort Worth garages have 60-amp panels that won’t support an ADU, which means a panel upgrade gets added to the written price from the start. You’ll know all of this before you commit, because we put it in writing.
Brands We Service
Benson ADU Fort Worth is authorized to build with Cover, a prefab ADU and addition system known for precision panelized construction and fast on-site assembly. Our crews have completed Cover projects that went from foundation to dried-in shell in under two weeks, which means less time living next to a construction zone and a faster path to the final inspection.
We also work regularly with Dvele and Boxabl. Dvele’s panelized systems are engineered for high-performance building envelopes, which matters in Fort Worth’s summer heat. Boxabl’s modular units fold into compact shipping dimensions and unfold on site, making them a strong option for detached additions where access is tight. Whether you have one of these systems or any other make, we can install, finish, and warranty the work.
Signs You Need a Pro Right Now
- Your foundation shows movement. Cracks wider than a quarter inch in brick veneer or interior drywall often mean your foundation is shifting, which directly affects how an addition ties in. Building on top of a moving foundation without an engineer’s assessment is how additions end up with cracks within the first year. We bring in a structural engineer before we draft plans.
- Your roofline is already maxed out. If your current roof has multiple valleys, dormers, or a low slope, tying a new addition into it cleanly takes real expertise. A bad roofline tie-in is the single most common source of leaks in Fort Worth additions. We’ll show you exactly how the new roof plane connects to the old one before you commit.
- Your electrical panel is full. A room addition adds load: more outlets, more circuits, more HVAC. If your panel has no open breaker slots, the project just got bigger and the price needs to reflect that from day one. We check panel capacity during the initial estimate so the written price actually holds.
- Your lot has drainage issues. Fort Worth’s clay soil expands and contracts dramatically with moisture, which is why drainage is a structural concern, not just a landscaping one. If water pools near your foundation after a rain, your addition needs a grading and drainage plan built into the scope. We address it in the plans, not as a surprise change order.
- You’re considering a garage conversion but the ceiling is low. Habitable space in Fort Worth requires a minimum ceiling height that many older garages don’t meet. If yours falls short, you’ll either need to raise the roof structure or pivot to a different addition type. We’ll measure and tell you the truth on the first visit, for free.
Our Process, Step by Step
- 1
Free On-Site Assessment. We walk your property, take measurements, check panel capacity, and listen to how you actually need the space to function. You’ll get a written price range before we leave, not a vague verbal number.
- 2
Written Scope and Fixed Price. Within a few days, you receive a line-item written proposal that covers every trade: foundation, framing, electrical, plumbing, drywall, paint, flooring, and exterior. The price is fixed. If you approve it, that’s the number we build to.
- 3
Plans and Permits. We handle as-built drawings, engineering where required, and permit submittal. You approve the plans before they go to the city, and we track the permit through Fort Worth’s review process until it’s issued.
- 4
Construction and Daily Updates. Your crew is background-checked and uniformed, and you’ll get photo updates at every milestone. Need to see where things stand? You can check progress from your phone without calling the office.
- 5
Final Walkthrough and 365-Day Promise. We walk the finished addition with you, create a punch list, and confirm every item is closed before we call the job done. Then the 365-Day Done Right Promise kicks in: if anything isn’t right within a full year, we make it right, free.
How Much Does Room Addition Contractor Cost in Fort Worth?
A typical room addition in Fort Worth runs $60,000 to $140,000 for a single-room build, while a primary suite with a bathroom lands between $110,000 and $220,000. Sunrooms are the most variable: a three-season prefab sunroom can start around $25,000, while a fully conditioned four-season glass room with a foundation push past $65,000. In-law suites and ADU conversions generally fall between $70,000 and $180,000 depending on whether the unit is attached or detached and whether it includes a kitchen.
What drives the price? Foundation type is first. A slab-on-grade addition costs less than a pier-and-beam crawlspace build because there’s less excavation and structural work. Roofline complexity matters too: a simple gable tie-in is far cheaper than matching existing hips and valleys. Finish level is the third driver. Builder-grade fixtures versus custom millwork can move the number by 30% or more.
How to avoid overpaying: get a line-item price and hold it. Benson ADU Fort Worth writes every cost down before work starts, so you’ll never see a change order for something that should’ve been caught in the initial walkthrough. Our free estimate includes the on-site assessment, panel check, drainage review, and a written price range. Call (682) 204-9686 to schedule yours.
Our Service Area Near Fort Worth
Benson ADU Fort Worth serves homeowners across Tarrant County and the surrounding area. If you’re in the city proper, we’re your local Room Addition Contractor in Fort Worth. We also work regularly with homeowners in Haltom City and Euless, and we take on projects in Burleson, Saginaw, Bedford, Southlake, Colleyville, Crowley, Azle, River Oaks, and Lake Worth. If you’re within about a 30-minute drive of central Fort Worth, we can help. Back on our home page, you’ll find our full service list and more detail on how our written-price process works.
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.
Frequently Asked Questions About Room Addition Contractor in Fort Worth
A room addition contractor is a licensed builder who handles the design, permitting, framing, finishing, and inspection of new square footage attached to your existing home, like our Room Addition Contractor in Bedford. In Fort Worth, that means managing everything from setback compliance to final occupancy sign-off. Benson ADU Fort Worth handles the entire scope in-house, from plans through final walkthrough.
Most single-room additions take 8 to 14 weeks once permits are issued, and primary suites run 12 to 20 weeks. Permit review time in Fort Worth can add 3 to 6 weeks on top of that, depending on the current queue. Modular and prefab additions from brands like Cover and Boxabl can cut on-site construction time by 30 to 50 percent.
Expect to budget $60,000 to $140,000 for a standard room addition, with primary suites, in-law suites, and ADU conversions running higher depending on plumbing and kitchen scope. The single biggest factor is foundation type, followed by roofline complexity and finish level. Every Benson ADU Fort Worth project starts with a written line-item price, so the number you approve is the number you pay. Call (682) 204-9686 for a free estimate.
Yes. Benson ADU Fort Worth is authorized to build with Cover and Boxabl, and we work regularly with Dvele’s panelized systems. That gives you the option of a factory-built addition with faster on-site assembly and tighter quality control. If you’d rather go site-built, we do that too, and we’ll price both options in writing.
If we uncover a foundation problem, drainage issue, or structural surprise during your addition, we stop work and walk you through exactly what’s needed before proceeding. Our live support line is answered around the clock, so you’ll never leave a voicemail and wait days for a callback. The fix gets priced in writing before anything is done.
If anything on your completed addition isn’t right within a full year, we make it right at no cost to you. That covers workmanship, materials we supplied, and any covered repair that fails. It’s a written guarantee stamped on every Benson ADU Fort Worth project, not a verbal promise.
Start by defining exactly how you’ll use the space, how many people it needs to serve, and what your hard budget ceiling is. Then call (682) 204-9686 to schedule a free on-site assessment. We’ll check your panel, foundation, drainage, and zoning during that first visit and give you a written price range before we leave. No surprises, no pressure, no verbal estimates that shift later.
Schedule Your Room Addition Contractor Service in Fort Worth Today
Ready to see real numbers? Call (682) 204-9686 and you’ll get a live person, a straight conversation, and a free on-site estimate with a written price range before we leave. No voicemail loops. No Monday-morning callbacks. Just a real plan and a real number, backed by the 365-Day Done Right Promise. That’s how a room addition in Fort Worth should work.
Written by Troy Eastman, Owner at Benson ADU Fort Worth, serving Fort Worth and surrounding Tarrant County since 2006.
