A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Rendon, TX
Adding an ADU, guest house, or room addition in Rendon means working with large rural lots, aging septic systems, and Tarrant County rules instead of city permits. Most Rendon homeowners we talk to want a detached casita for family, a rental unit, or a barndominium-style living space that fits the semi-rural character of the area. The job looks different here than in Fort Worth or Arlington: bigger setbacks, clay soil movement, and septic capacity questions come up on nearly every project. Sutton ADU Fort Worth handles all of it with written pricing before work begins. Call (682) 255-2399 for a free estimate.
Why Rendon Homes Are Different
Rendon sits in unincorporated Tarrant County, which changes the entire permitting conversation. There’s no city zoning department to answer to, but that doesn’t mean no rules. Tarrant County oversees septic and floodplain requirements, especially for properties near Village Creek or any of the smaller drainages that run through the area. If your lot has an existing well and septic system, adding a second dwelling means the county wants to see that the system can handle the extra load before anything gets built. We’ve helped homeowners size septic expansions, design for floodplain setbacks, and plan ADUs that work with wells instead of city water lines.
The housing stock here also shapes what’s possible. Most Rendon homes sit on one to ten acres, built from the 1970s onward, with a mix of brick veneer, frame, and metal building construction. That lot size is a gift for detached ADUs or room additions. But the clay soil underneath moves. North Texas clay expands and contracts through wet and dry cycles, and we account for differential settling on every attached addition and garage conversion we plan in Rendon. Skipping that step leads to cracked drywall and doors that stop latching within a few years.
Summers are brutal down here, and storms roll through more often than people expect. Any living space we build or convert in Rendon needs real HVAC capacity, moisture-resistant materials, and roofing that can take a beating. We lean on James Hardie exterior systems for attached work because they stand up to humidity and hail better than cheaper siding options.
Our Main Rendon Services
Rendon homeowners call us most often for two things: building a detached ADU on their acreage, or adding square footage directly onto the existing home. Here’s what each one looks like in this part of Tarrant County.
Home Addition Contractor in Rendon
A home addition in Rendon usually means a new primary suite, a second living area, or an expanded kitchen that connects to the existing slab or foundation. Because so many homes here have brick veneer, matching the exterior matters. We also check the foundation for clay-soil movement before tying into it, and we factor Tarrant County septic rules into the design if the addition adds a bathroom. Every project gets a written price before we start. Learn more on our Home Addition Contractor in Rendon page.
ADU Builders in Rendon
Detached ADUs are the most common project we quote in Rendon because the lots actually have room for them. Homeowners use them for aging parents, adult children, or rental income. We’ve worked with prefab lines like Cover and Boxabl where the lot access allows delivery, but many Rendon properties are better suited to site-built or barndominium-style construction that matches the metal buildings already on the property. Those need serious attention to insulation and ventilation in Texas heat. See ADU Builders in Rendon for details.
Room Addition Contractor in Rendon
A room addition is the smaller, faster version of a home addition. In Rendon, we see a lot of home offices, sunrooms, and extra bedrooms added onto frame-built homes. Managing water runoff and soil movement around the new foundation is the part people forget about until it’s a problem. We design for it from day one. The Room Addition Contractor in Rendon page covers pricing and process.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Rendon
We work with prefab and modular ADU brands including Cover, Dvele, and Boxabl. If you’ve researched any of these and want straight talk about which one fits your Rendon lot, budget, and septic setup, see our brands page for what we stock and service locally.
Pricing for ADU Company in Rendon, TX
| Service | Typical range in Rendon |
|---|---|
| Detached ADU (site-built, 400 – 800 sq ft) | $180,000 – $320,000 before site work |
| Detached ADU (prefab/modular, 400 – 800 sq ft) | $160,000 – $280,000 before site work |
| Barndominium-style ADU (metal building with living quarters) | $140,000 – $240,000 depending on finish level |
| Garage conversion to living space | $80,000 – $160,000 |
| Home addition (300 – 600 sq ft) | $110,000 – $220,000 |
| Room addition (150 – 300 sq ft) | $60,000 – $130,000 |
| Septic system expansion or replacement (when required by county) | $15,000 – $45,000 |
| Foundation work for clay soil movement | $5,000 – $20,000 depending on scope |
Two things push prices up in Rendon more than anywhere else: septic system capacity and foundation preparation for clay soil. We include both in the written estimate before you sign anything, so you won’t get a change order later. The price we hand you is the price you pay.
Neighborhoods We Serve in Rendon
Rendon’s semi-rural layout means most of our work happens on acreage parcels and in the small subdivisions scattered across the area. We regularly quote projects throughout the Rendon community and respond to estimate requests here within one business day.
- Rendon proper and the parcels along Rendon Road
- Areas near Village Creek and its drainages
- Properties off FM 1187 and surrounding county roads
- Acreage lots east toward Kennedale and Mansfield
- Subdivisions west toward the Tarrant – Johnson county line
Service Area – Cities Near Rendon
Sutton ADU Fort Worth coordinates scheduling and dispatch from our Dallas-Fort Worth office, and our crews serve Rendon locally. If you’re just outside Rendon, we also cover Fort Worth, TX, Arlington, TX, North Richland Hills, TX, and Keller, TX.
Serving Rendon, TX - Our Local Coverage Area
We’re based in the Rendon 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 ADU Company in Rendon
Because Rendon is unincorporated, there’s no city permit for most ADU work. But Tarrant County still reviews septic capacity and floodplain placement, especially near Village Creek. We handle that paperwork as part of your written estimate. Call (682) 255-2399 and we’ll check your specific lot before quoting.
Most detached ADUs in Rendon take four to seven months from design to completion. Prefab units like Boxabl can go faster if your lot access supports delivery. Site-built and barndominium-style units take longer because of foundation work and utility connections. We give you a timeline with your written price.
Yes. We design ADUs around your current well and septic setup, and if the county requires an expansion, we include that cost in the estimate up front. No surprise septic bills after the project starts. Call (682) 255-2399 for a free estimate and we’ll walk your property with you.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Rendon Customers Say
"Straight answers on what we could and couldn't do on our lot."
- Edwin H."Itemized estimate with allowances laid out. Final cost was within a hair of the quote."
- Naomi R."Every crew member was vetted and carried a badge, which matters when they are around your family for months. Tidy site every day."
- Daniel F.
