







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Richland Hills, TX
Adding an ADU, a room addition, or a full home addition in Richland Hills means working with the city’s specific housing stock: modest brick ranch homes from the 1950s through 1970s, many sitting on generous lots with mature trees and aging utility lines. The opportunity is real – those big backyards and detached garages are exactly what an ADU needs. The challenge is equally real: Richland Hills zoning rules and utility easements, especially along the older tree-lined streets, shape what can be built and where. Call us at (682) 255-2399 to talk through your lot.
Why Richland Hills Homes Are Different

Richland Hills is a city of single-story brick ranch and traditional homes built largely between the 1950s and 1970s. That matters for ADU work in ways most national builders don’t prepare for. Many of these homes sit on pier-and-beam or slab foundations, and a sizable number have original sewer and water lines that were never designed for a second dwelling. Adding an ADU often means upgrading the existing service before the new structure can even be plumbed.
The climate pushes decisions too. Summers in Richland Hills are hot and dry, with stretches that punish undersized HVAC. Winters can dip below freezing, and spring brings severe thunderstorms, hail, and high winds. An ADU here needs real insulation, a properly sized HVAC system, and a roof assembly that can take a hailstorm without failing. Then there’s the soil: expansive clay moves with moisture cycles, so foundation design has to account for movement that a prefab manufacturer in California never planned for. The detached garages scattered across Richland Hills backyards are a common ADU trigger, but many of those structures were built decades ago without permits, proper foundations, or adequate electrical service. Converting one usually means substantial upgrades before the build itself starts.
Our Main Richland Hills Services
These are the three jobs Richland Hills homeowners call us about most often, each with its own dedicated page covering local pricing, permitting, and what the work involves.
Home Addition Contractor in Richland Hills
A home addition in Richland Hills usually means extending a brick ranch sideways or out the back, and the first question is always the foundation. Older slab and pier-and-beam setups react differently to the expansive clay under Richland Hills, and tying a new foundation into an old one is a precise job if you don’t want cracks down the line. We also deal with the reality that many additions require upgrading the existing electrical panel and sewer line to handle the added square footage. Every project starts with a written price before any work begins. See the full breakdown on our Home Addition Contractor in Richland Hills page.

ADU Builders in Richland Hills
Detached ADUs in Richland Hills work best when the design respects the city’s setback rules and existing utility easements, and that’s where experience with the local lots pays off. Many Richland Hills properties have mature trees that create both shade and foundation headaches, so placement matters more than it would on an open suburban lot. When a prefab ADU from a brand like Cover or Dvele makes sense, we handle the site work, foundation, and utility connections; when a stick-built ADU fits the lot better, we build it from the ground up. Our ADU Builders in Richland Hills page walks through the full process and price ranges.

Room Addition Contractor in Richland Hills
A room addition in Richland Hills is often the most cost-effective way to add a bedroom, home office, or second living area without going through the full ADU permitting process. The work still has to match the existing brick exterior, tie into the current roofline, and sit on a foundation that won’t shift with the clay soil. We handle everything from matching the James Hardie cladding on the existing home to making sure the new HVAC run actually cools and heats the added space. Details and local pricing are on our Room Addition Contractor in Richland Hills page.

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 Richland Hills
When a prefab or modular ADU is the right fit, we’re experienced with the systems homeowners ask about most: Cover, Dvele, Mighty Buildings, and Boxabl. That experience means we can tell you honestly which product line suits a Richland Hills lot, a Richland Hills foundation, and a Richland Hills budget. See our brands for the full list of what we work with.
Pricing for ADU Company in Richland Hills, TX
| Service | Typical range in Richland Hills |
|---|---|
| Detached ADU (400 – 600 sq ft, prefab) | $180,000 – $240,000 before site work |
| Detached ADU (400 – 600 sq ft, stick-built) | $220,000 – $320,000 before site work |
| Detached ADU (600 – 1,000 sq ft, prefab) | $240,000 – $320,000 before site work |
| Detached ADU (600 – 1,000 sq ft, stick-built) | $280,000 – $420,000 before site work |
| Detached ADU (1,000+ sq ft, custom) | $350,000 – $550,000+ before site work |
| Garage conversion to ADU | $130,000 – $220,000 depending on existing condition |
| Room addition (300 – 500 sq ft) | $120,000 – $220,000 |
| Full home addition (600 – 1,200 sq ft) | $220,000 – $500,000 |
| Second-story addition (600 – 1,000 sq ft) | $250,000 – $450,000 |
| Detached garage conversion or rebuild to living space | $150,000 – $250,000 |
What pushes the price up in Richland Hills is usually the condition of what’s already on the lot: aging sewer lines, an electrical panel that needs replacing, expansive clay that calls for deeper footings or pier work, and existing unpermitted structures that have to be brought up to code before the new build starts. You’ll get a written price before any work begins, and that price doesn’t change unless you change the scope. No surprises.
Neighborhoods We Serve in Richland Hills

Most Richland Hills ADU and addition work happens in the quieter residential streets where the original 1950s and 1960s homes still stand on their big lots. We work throughout the city, including:
- The older ranch-home streets near the center of Richland Hills
- Neighborhoods along the tree-lined corridors where utility easements run deep
- Areas near the eastern edge where lots tend to be wider
- The pockets with detached garages and workshops built decades ago
We schedule all Richland Hills work through our Dallas-Fort Worth office, and crews reach most Richland Hills neighborhoods the same week you call for an estimate.
Service Area – Cities Near Richland Hills
While this page focuses on Richland Hills, our crews cover the surrounding Tarrant County area for ADUs, home additions, and room additions. If you’re in Fort Worth, TX, Arlington, TX, North Richland Hills, TX, or Keller, TX, each of those pages covers the local permits, housing stock, and pricing for that city.
Serving Richland Hills, TX - Our Local Coverage Area
We’re based in the Richland Hills 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 Richland Hills

Most Richland Hills ADU projects start with a site visit and written estimate within one to two weeks. Permitting is usually the longest step, and Richland Hills zoning review times vary depending on whether your lot has utility easements or requires a variance for setbacks. Call (682) 255-2399 for a free estimate and we’ll map out a realistic timeline for your specific property.
Some Richland Hills neighborhoods have deed restrictions or HOA covenants that affect detached structures, even when the city permit is approved. We recommend checking your HOA documents early, because an HOA denial can stop a project the city would otherwise permit. We can help you understand what to look for.
Yes, and this is the norm rather than the exception in Richland Hills. We plan for sewer line and electrical panel upgrades as part of most ADU and addition projects, and we’ll include those items in your written price up front so there’s no surprise line item later. Call (682) 255-2399 to schedule a free estimate.
Ready to talk about your Richland Hills ADU, room addition, or full home addition? Call Sutton ADU Fort Worth at (682) 255-2399 for a free estimate. We’ll give you a written price before any work starts, a name and photo of every person who’ll be on your property, and the 365-Day Done Right Promise on every project.
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 Richland Hills Customers Say
"Backyard ADU for my mother. The project manager showed ID and walked me through the permit steps, the foundation plan, and the schedule. Moved her in on time."
- Margaret C."Garage conversion into a studio. They framed the insulation, added a mini split, and matched the siding. Inspectors passed everything on the first visit."
- Andrew K."Straight answers on what we could and couldn't do on our lot."
- Edwin H.



