San Antonio Tiny Home Builders Who Design for Your Lot First
San Antonio has quietly become one of the best cities in Texas for small-home living. Older neighborhoods inside Loop 410 have deep lots with alley access, newer subdivisions in the north and west have room behind the house for a guest suite, and the ranch land just past Loop 1604 is a natural fit for a park model or tiny house on wheels. As tiny home builders in San Antonio, Cowboy Tiny Homes starts every project by looking at the land, not a catalog.
That means we ask the questions that decide what you can actually build: Is the lot inside city limits or in unincorporated Bexar County? Is there an HOA? Where do water, sewer and electric come in? Is there an alley, a slope or a drainage easement? The answers point you toward the right home type before you spend money on drawings.
What We Build in San Antonio
- Backyard casitas and ADUs — the most common request in the city, for aging parents, adult kids coming home, a home office or a long-term rental.
- Custom tiny and small homes on a permanent foundation for owners who want to downsize without giving up quality.
- Park model homes for RV parks, hunting leases and weekend land in Medina, Bandera and Atascosa counties.
- Tiny homes on wheels for owners who want to follow work, family or the next piece of land.
San Antonio ADU and Tiny House Rules: What to Know
San Antonio allows accessory dwelling units in many residential zoning districts, which is a big reason casitas are so popular here. The city's development code sets standards for an ADU's size relative to the main home, height, setbacks, parking and how many units can share a lot, and those standards can differ by zoning district, historic district or neighborhood conservation district. Rules have been updated over the past few years, so always verify the current requirements with the City of San Antonio Development Services Department before you commit to a design.
Outside city limits the picture changes. Unincorporated Bexar County and the surrounding counties generally have no zoning, but subdivision deed restrictions, septic permitting, floodplain rules and utility availability still apply. A tiny home on wheels is usually treated as a recreational vehicle, which can make it easier to place in an RV park but harder to live in full time on a city lot.
Our feasibility study does this homework for you. Before design starts, Cowboy Tiny Homes checks zoning, setbacks, easements, floodplain maps and utility connections for your exact address. For the bigger statewide picture, read our guide to tiny house laws in Texas.
Designing for South Texas Heat and Hill Country Ground
Summers in San Antonio regularly push past 100°F, and a small home heats up fast if it is designed poorly. We orient windows to limit west sun, specify deep porch overhangs, use radiant-barrier roof decking and continuous insulation, and size ductless mini-split systems for the actual square footage instead of over-sizing. A metal or light-colored roof can make a measurable difference in comfort and power bills.
The ground matters too. North and west of the city you hit limestone and caliche close to the surface, which affects foundation design, trenching for utilities and septic layout. On the east and south sides, clay soils move with moisture and call for a properly engineered slab or pier-and-beam foundation. We account for both in the site plan.
Popular Tiny Home Projects in the San Antonio Area
| Project | Typical size | Best fit |
|---|---|---|
| Mother-in-law casita | 400–800 sq ft | Families caring for parents in established neighborhoods |
| Garage or alley-access ADU | 350–700 sq ft | Long-term rental income near downtown, the Pearl and medical centers |
| Hill Country weekend cabin | 300–399 sq ft park model | Land in Kendall, Comal, Bandera and Medina counties |
| Downsizer small home | 600–1,200 sq ft | Retirees who want one-level living on a smaller lot |
| Tiny home on wheels | 200–400 sq ft | RV parks and rural land outside city limits |
Thinking about renting a casita? Military families, traveling nurses and students keep demand steady across the metro. Run the numbers with our ADU rental income calculator, then check build costs in the tiny home cost calculator.
Areas We Serve Around San Antonio
Cowboy Tiny Homes works throughout Bexar County and the surrounding region, including New Braunfels and Canyon Lake in Comal County, Seguin, Cibolo and Schertz in Guadalupe County, Boerne and Comfort in Kendall County, plus Helotes, Converse, Live Oak, Universal City, Castroville and the towns along I-10 and I-35. If your land is farther out, ask — rural builds are some of our favorite projects.
How a San Antonio Project Comes Together
- Free consult: share your address, budget and goals.
- Feasibility study: we confirm what the lot allows and what utilities will cost.
- Design: floor plans, elevations and 3D renderings, revised until it fits.
- Permits and build: permit-ready drawings, then construction with regular updates.
See the full Cowboy Tiny Homes process, or browse house designs for inspiration.