A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateTrusted ADU Builders for Fort Worth Homeowners
Adding an accessory dwelling unit in Fort Worth means navigating setbacks, permit applications, and honest pricing for a project that often runs between $150,000 and $350,000 depending on size, site conditions, and whether you choose a prefab panel system or stick-built construction. Most homeowners we talk to in neighborhoods like Ryan Place, Wedgwood, and Oakhurst want the same thing: a real price before they commit, and a builder who won’t ghost them once the slab is poured. Benson ADU Fort Worth has been delivering exactly that since 2006 as part of the Relay Home Co. family, pairing access to proven prefab brands like Cover, Dvele, and Boxabl with the 365-Day Done Right Promise. Our owner, Troy Eastman, insists on a written price before any work starts, background-checked crews on site, and a live person answering the phone around the clock. Call (682) 204-9686 to start with a free estimate.
ADU Construction
ADU Construction is the full process of turning an underused part of your property – usually a backyard corner, a converted garage, or an attached wing – into a legal, permitted, independently livable dwelling with its own kitchen, bath, and entrance. You need it when a spare bedroom stops being enough, when an aging parent needs to be close but not sharing your hallway, or when rental income from a backyard unit would change your monthly budget. In Fort Worth, ADU construction typically ranges from $180,000 to $320,000 for a turnkey unit, with prefab systems from Cover or Dvele often landing on the lower end thanks to factory-built wall panels that go up in days instead of months. Benson ADU Fort Worth handles everything from foundation and utility taps to final inspection, and the written price you get before construction starts is the price you pay.
Site-Built vs. Prefab Panels
Site-built means the walls are framed stick-by-stick in your backyard, which gives full design flexibility but takes longer and costs more when lumber prices swing. Prefab panels arrive pre-cut and pre-insulated, which speeds framing dramatically and reduces waste. We’ll walk you through both approaches in your first consultation and show real numbers for each.
Permits and Setbacks in Fort Worth
A setback is the required distance between your structure and the property line, and Fort Worth enforces these differently by zoning district. The city also caps ADU size based on lot dimensions and primary residence square footage. Our team checks your specific parcel before you spend a dollar on design, so you’ll know what’s actually buildable.
Detached ADU
A Detached ADU is a standalone structure completely separate from your main house, built from the ground up in the yard rather than carved out of existing square footage. It’s the right call when you want true privacy for a tenant or family member, when your garage is too small or too valuable as parking, or when the lot has usable space on the far side away from the primary residence. In the Fort Worth market, detached ADUs run $200,000 to $350,000 when fully permitted and finished, with costs driven by foundation type, utility trenching distance, and the finish level you select. Benson ADU Fort Worth builds detached units with both conventional framing and prefab systems like Boxabl and Cover, always with a written quote before the first permit is pulled.
Utility Runs and Foundation Work
Trenching new water, sewer, and electrical lines from your main house to a detached unit is often the largest hidden cost. A unit at the back of a deep Fort Worth lot might need 80 feet of trenching, which adds real money fast. We map these runs during the estimate phase so the number you see reflects reality.
Placement and Site Orientation
Where the unit sits on the lot affects privacy, natural light, and long-term livability. We consider window sightlines, afternoon sun exposure on Texas summer days, and access paths that don’t put tenants walking past your bedroom window. These choices are designed in, not improvised on demo day.
JADU
A JADU is a junior accessory dwelling unit, which means a smaller unit of up to 500 square feet created within the walls of an existing home, often by converting a garage, enclosed porch, or underused section of the house. You choose a JADU when budget is the priority, when you want your tenant or family member close enough to share utilities and existing wall plumbing, or when your lot is too tight for a standalone unit. JADU conversions in Fort Worth commonly run $80,000 to $150,000 because you’re working inside an already-built footprint, which saves on foundation and major utility work. Benson ADU Fort Worth handles the full conversion, including sanitation, ventilation, and the efficiency kitchen that JADU code allows.
Garage Conversion Reality Check
Most JADUs we build in Fort Worth started life as a two-car garage or a covered patio space. The conversion means upgrading insulation, running new electrical for a kitchenette, and often replacing the slab with a proper moisture barrier. It’s more than a wall-in job, and we’ll show you line items for each trade.
Shared Utilities and Separate Living
A JADU shares water and often electrical service with the main house, which keeps monthly costs low but means the two units don’t have separate utility billing. This works well for family, less so if you’re trying to split costs with a tenant. We’ll give you the honest trade-off in writing before you decide.
ADU Plans
ADU Plans are the design and permit drawings that show exactly what will be built, how it meets Fort Worth code, and where every wall, window, and utility line lands. You need them before construction because the city won’t issue a building permit without stamped, code-compliant drawings, and a good plan set is also your pricing document, letting builders bid apples-to-apples instead of guessing. For a typical backyard unit, architectural and engineering plans run $8,000 to $20,000 depending on complexity, and Benson ADU Fort Worth includes plan development in the project scope, not as a surprise add-on. We prepare plans with our licensed designers and structural engineer, then file them with the city as part of your project.
Pre-Approved vs. Custom Plans
Some of the prefab systems we work with, like Boxabl and Cover, include pre-approved engineering that can cut plan review time significantly. A fully custom stick-built design takes longer because every beam and shear wall must be calculated from scratch. We’ll show you plan options for both paths.
What a Good Plan Set Includes
A proper ADU plan set includes site plan, floor plan, elevations, electrical, plumbing, and structural details, plus energy compliance calculations for Texas climate zones. Missing sheets delay permits and open the door to change orders mid-build. Our plan packages are complete before we submit, because the city reviews what’s on paper, not what we intended.
ADU Contractor
An ADU Contractor is the licensed general contractor who manages the entire build: permits, subcontractors, scheduling, inspections, and the final walkthrough that certifies the unit is legal to occupy. You need one because acting as your own general contractor on a dwelling unit means managing a dozen trades on a construction schedule, and a delay in one trade cascades through everything. In Fort Worth, general contractor fees for ADU projects typically run 12% to 20% of total project cost, which is included in the $180,000 to $350,000 range for turnkey builds. Benson ADU Fort Worth acts as your single point of contact from the first survey to the final certificate of occupancy, with Troy Eastman personally reviewing every project schedule.
Subcontractor Screening and Management
Every electrician, plumber, and framer who walks onto your property has been background-checked and vetted by our team. They show up in uniform, with the day’s scope already reviewed. You’ll know who’s expected on any given morning before they arrive.
Why Written Quotes Change Everything
The residential construction industry has a bad habit of giving verbal estimates that drift upward once the job is underway. Our contract price is in writing before work starts, and change orders only happen when you ask for a change. The 365-Day Done Right Promise covers the finished work for a full year.
ADU Design
ADU Design is the phase where function and budget translate into a floor plan, a roofline, and a unit that feels like a home rather than a shed with a kitchenette. You invest in design when you want the space to be genuinely livable for years, not just pass inspection, and when a poorly laid-out unit would cost you rent or comfort down the line. For most Fort Worth projects, design fees fall between $5,000 and $15,000 before construction, and this is often bundled into the total project price. Benson ADU Fort Worth starts design with a site visit and a conversation about how the unit will actually be used, then shows you layouts on real lots like yours.
Designing for Texas Heat
Fort Worth summers demand careful window placement, roof overhangs, and insulation levels that a stock plan from out of state won’t account for. We spec units for local climate reality, including high-efficiency mini-split systems and adequate attic ventilation. A unit that bakes in July is a unit that’s uncomfortable and expensive to cool.
Kitchen and Bath Efficiency
In a 400 to 800 square foot ADU, every square foot of kitchen and bath space counts twice. We design compact but functional layouts with full-size appliances where possible, and we’ll tell you honestly whether that 48-inch range is worth losing the pantry. Trade terms get explained in plain English at every step.
Backyard ADU
A Backyard ADU is an accessory dwelling unit placed in the rear or side yard of your property, typically accessed by a pathway from the front or a side gate, and built as its own freestanding structure. You choose a backyard unit when the garage is staying a garage, when the side yard is the only buildable area, or when a rear placement gives the best balance of privacy and natural light. Backyard ADUs in Fort Worth commonly cost $190,000 to $330,000 depending on size, access for equipment, and finish level. Benson ADU Fort Worth has built backyard units on lots across the area from Saginaw to Crowley, and every project started with a written estimate at no charge.
Access and Equipment Logistics
Getting materials and equipment to the back of a lot may require a mini-excavator through a narrow side gate or even crane delivery in tight platted neighborhoods. These logistics affect both schedule and price, and we scope them during the estimate walkthrough. You’ll know before we break ground whether a crane rental is in the plan.
Landscaping and Outdoor Flow
A backyard ADU changes how you use your yard, and it should feel connected, not crammed in. We think through pathways, small patios, and where the trash bins will live so the unit doesn’t look like an afterthought. These details are part of the design conversation, not left to chance.
Brands We Service
Benson ADU Fort Worth is authorized to build with Cover, Dvele, and Boxabl, which means you’re not limited to whatever a single factory happens to produce. Cover units are known for precision-engineered wall and roof panels with an exceptionally tight building envelope. Dvele brings a health-first approach to indoor air quality and integrated home intelligence. Boxabl offers a factory-built folding system that can dramatically reduce on-site construction time. We’ll show you real product data sheets and completed projects for each brand and let you verify quality independently before committing.
Not every lot suits every brand. We’ll give you a straight answer about which system fits your site, your budget, and your timeline, whether you end up with a Cover, a Dvele, a Boxabl, or any other system we specify. Our job is to match you with the right product, not to push a single take-it-or-leave-it option. Schedule a consultation and we’ll walk you through actual options for your property in Fort Worth.
Signs You Need a Pro Right Now
- You’ve been told your lot “can’t” support an ADU. Sometimes a previous contractor wasn’t experienced with variance requests or accessory dwelling unit code. Before you give up on rental income or a family housing plan, let us review the parcel and tell you what’s genuinely possible under current Fort Worth zoning.
- You got a quote that feels like a guess. A verbal ballpark with no line items means you’re about to fund someone’s discovery process. A written, itemized estimate is the minimum standard for a project this size, and if a contractor won’t put numbers in writing, walk away.
- Your property has old utilities or a failing garage slab. Aging electrical panels, cast-iron sewer lines, or a cracked garage floor can turn a simple conversion into an expensive surprise. A pro who evaluates utilities during the estimate phase saves you from a mid-project budget shock.
- You need permitting help and don’t know where to start. Fort Worth’s permitting process has specific requirements for ADUs, including setbacks, size limits, and utility connections. If you’re lost in the paperwork, a contractor who handles permits daily can move the project forward while you focus on the actual design choices.
- You’re debating between prefab and stick-built. This decision affects cost, timeline, and resale value, and it’s hard to make without seeing real pricing. A contractor authorized with multiple prefab brands can show you side-by-side numbers instead of a single-option pitch.
Our Process, Step by Step
- 1
Free on-site consultation. We visit your Fort Worth property, measure the buildable area, check access, and review utility locations. You’ll get a clear picture of what’s possible on your specific lot, not a generic brochure answer.
- 2
Written estimate and design proposal. Within days of the visit, you receive a line-item written price covering design, permits, construction, and finishes. No verbal promises, no vague allowances, and the number is fixed before you sign anything.
- 3
Design development and permitting. Our designers and engineer produce the full plan set, and we submit to the city on your behalf. We track the permit through review, and you’ll be updated at every step in the portal we set up for your project.
- 4
Construction with real-time tracking. Every phase is documented with photos, including daily progress shots from the job site. You’ll know exactly what was done each day, and any question you have is answered by a live person, not a voicemail.
- 5
Final walkthrough and Done Right Promise. We walk the finished unit together, address any items on the punch list, and hand over the keys along with your written 365-Day Done Right Promise. If something isn’t right within a year, we fix it, and if a covered repair fails, the second visit is free.
How Much Does ADU Builders Cost in Fort Worth?
A typical backyard ADU in Fort Worth runs $180,000 to $350,000 for a permitted, turnkey unit ready to live in. Garage conversions and JADUs fall lower, usually $80,000 to $150,000, while fully custom detached units with high-end finishes can reach $400,000 or more. The biggest drivers are size, foundation type, utility trenching distance, and the finish level you choose for kitchen and bath.
What affects your price: the condition of your existing electrical panel, whether the unit sits on a slab or pier-and-beam foundation, setback constraints that limit the building footprint, and Plan review fees from the city. The fastest way to overpay is to accept a vague allowance-based estimate that lets materials drift upward mid-build. Our written estimate locks in the price before construction starts, with change orders only when you request a change. Your free estimate includes a line-item breakdown, site feasibility review, and a realistic timeline based on your lot’s specific conditions.
Our Service Area Near Fort Worth
Benson ADU Fort Worth builds accessory dwelling units and home additions across the greater Fort Worth area, including Haltom City, Euless, Burleson, Saginaw, Bedford, Southlake, Colleyville, Crowley, Azle, River Oaks, and Lake Worth. If you’re researching ADU Builders in Haltom City or ADU Builders in Euless, we bring the same written pricing and 365-Day Done Right Promise to your project. We also handle home additions and whole-property renovations throughout Tarrant County, so one call covers the full scope.
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 ADU Builders in Fort Worth
An ADU builder manages the entire process of adding a legal secondary dwelling to your property, from feasibility and design through permitting, construction, and final inspection. The builder coordinates all subcontractors, schedules inspections, and takes responsibility for code compliance and workmanship. At Benson ADU Fort Worth, we also provide a written price before work starts and back the finished project with the 365-Day Done Right Promise. Call (682) 204-9686 for a free site evaluation.
A typical backyard ADU takes 4 to 8 months from design start to certificate of occupancy, with prefab panel systems like Cover or Boxabl often coming in on the shorter end. Site-built units take longer because framing happens on-site and weather can interrupt the schedule. Permit review time with the city also varies by project complexity and current volume. You’ll get a realistic, written timeline during the estimate phase, and we update it in real time as the project progresses.
Most ADUs in Fort Worth cost between $150,000 and $350,000 depending on size, whether the unit is attached or detached, site access, and finish level. Garage conversions and JADUs fall in the $80,000 to $150,000 range. The price you’re quoted should be the price you pay, which is why we provide a written, line-item estimate before any work begins. Call (682) 204-9686 for an exact quote on your specific property.
Yes, Benson ADU Fort Worth is authorized to build with Cover, Dvele, and Boxabl systems, and we’ll help you choose the right one for your site and budget. Each brand has different strengths: Cover for precision wall panels, Dvele for healthy-home technology, and Boxabl for rapid factory-built installation. Not every lot suits every system, and we’ll explain exactly why one is a better fit than another for your property. You can verify each brand’s reputation independently before deciding.
Yes, our phone line is answered by a live person 24/7, every day of the year. If you have a water leak, electrical problem, or structural concern in an existing unit, call (682) 204-9686 and you’ll speak with someone who can dispatch help, not a voicemail system. During construction, any urgent site issue is escalated directly to your project manager. The 365-Day Done Right Promise covers repair work on finished projects for a full year.
Every project includes the 365-Day Done Right Promise: if anything isn’t right within the first year, we make it right at no cost to you. The written guarantee spells out exactly what’s covered, including workmanship and materials installed by our team. If a covered repair fails, the second visit is free. Manufacturer warranties from brands like Cover, Dvele, and Boxabl apply separately to their factory components.
Start by finding your property survey and any recent utility bills, which help us map existing lines and confirm setbacks. Clear vegetation from the proposed build area if it’s safe to do so. Most importantly, have a conversation with us early about how you’ll use the unit, including tenant parking and outdoor space, so design decisions reflect your real life. We’ll handle the rest from site evaluation through final inspection.
Schedule Your ADU Builders Service in Fort Worth Today
A written price, a fixed timeline, and a builder who answers the phone, that’s what you get with Benson ADU Fort Worth. Whether you’re planning a detached unit in the backyard, a JADU conversion, or a full custom build with Dvele or Boxabl, the free estimate comes with no obligation and no surprises. Call (682) 204-9686 to book your site visit, and Troy Eastman and the team will walk you through exactly what’s possible on your property.
Your Fort Worth ADU Builders
Benson ADU Fort Worth is a member of the ADU Builders in Fort Worth network serving Tarrant County and surrounding communities. From a Haltom City garage conversion to a backyard unit near Euless, we bring written pricing, background-checked crews, and the 365-Day Done Right Promise to every job. Back to home for more on our full range of services.
Written by Troy Eastman, Owner at Benson ADU Fort Worth, serving Fort Worth homeowners since 2006.
