Local pricing, permitting and delivery for the San Antonio market. Researched estimates, not a quote form.
San Antonio is served out of our Houston logistics lane. Working figure for modular building companies in the San Antonio market is $312 per square foot for a Signature build before site work, with freight running around $8,160 per module over roughly 1,200 loaded miles. A metro population near 2,601 thousand means subcontractor availability for the site scope is generally workable, which matters more to your schedule than most buyers expect.
What the jurisdiction requires. San Antonio falls under No statewide residential code; municipal adoption of IRC. Texas Industrialized Housing and Buildings program governs modular. Texas is the single largest modular market by volume. The Industrialized Housing and Buildings program provides a clear state pathway, coastal counties from Corpus Christi to Beaumont carry windstorm requirements, and the Permian Basin drives heavy workforce housing demand. Before we quote, we confirm the zoning district, setbacks, whether the parcel sits in a flood zone, and whether the local authority has a defined pathway for factory-built structures. In Texas, that answer is usually available in a single phone call, and it changes the design if you get it late.
Access is the variable that surprises San Antonio buyers most often. A module needs a route wide enough for the transport truck and a staging area for the crane. Mature trees, tight alleys, overhead utilities and narrow driveways all push crane reach past the included envelope, and reach is priced per foot.
Demand in San Antonio has been steady enough that production slots are worth reserving early. Our windows reflect the current factory queue, not a marketing number, and they move with material lead times and seasonal demand. A slot confirmed now holds; a slot considered for six weeks usually does not.
Signature finish level, adjusted for Texas regional cost. Foundation, utilities, permits, freight and crane quoted separately.
| 400 sq ftstructure before site work | $124,800delivered total varies with site scope |
| 600 sq ftstructure before site work | $187,200delivered total varies with site scope |
| 800 sq ftstructure before site work | $249,600delivered total varies with site scope |
| 1,000 sq ftstructure before site work | $312,000delivered total varies with site scope |
| 1,200 sq ftstructure before site work | $374,400delivered total varies with site scope |
| 1,500 sq ftstructure before site work | $468,000delivered total varies with site scope |
Site-built construction is sequential: permit, then excavate, then frame, then finish. Factory-built runs the site work and the building in parallel. While your foundation is being poured and utilities are being trenched, the structure is already being framed and finished on a production line hundreds of miles away. That overlap is where the calendar savings actually come from, not from anyone working faster.
There is a persistent assumption that factory-built means less oversight. The opposite is true. Modules are inspected at multiple stations during production by third-party agencies, then inspected again on site after the set. A conventional stick-built house typically sees an inspector four to six times total. A modular unit is checked at every stage where a defect could be hidden by the next layer.
A production line orders in bulk, cuts to optimized lengths, and recycles offcuts across dozens of units. Site-built framing typically sends fifteen to twenty percent of delivered material to a dumpster you paid to rent and paid again to haul. Lower waste is part of why the per-square-foot number comes in lower, and it is the part nobody puts in the brochure.
The trade shortage is the single biggest schedule risk in construction right now. Factory production concentrates skilled labor in one facility where crews repeat the same operations daily instead of assembling a new subcontractor roster for every project. You are not waiting three weeks for an electrician to have an opening.
We start with what the site will actually allow: zoning, setbacks, utility availability, flood zone, access width for a truck and crane, and whether the jurisdiction has a defined modular pathway. This is where projects get saved or killed, and it costs nothing to find out.
Layout, finish level and options are locked, and the price for the building is set at that point. Site work is priced separately and transparently, because that is the number that varies with your specific lot and the one most suppliers hide until you are committed.
Plans go to the state modular program or local authority while the site work begins. Running these concurrently rather than sequentially is where most of the schedule advantage lives.
Your unit enters the line. Framing, envelope, mechanical rough-in, insulation, drywall, finish, fixtures and cabinetry happen at successive stations with inspection at each. You get progress documentation rather than guesses.
Foundation is poured or set, utilities are trenched and stubbed, access is prepared for the delivery truck and crane. This runs while your unit is in production.
Modules are transported and craned onto the foundation. For a single-module building this is typically a matter of hours, not days — the set itself is the fastest part of the entire project.
Marriage lines are joined, mechanicals and utilities are connected, exterior finishes are completed at the seams, final inspection is called, and you get your certificate of occupancy along with documentation.
The cost advantage comes from process — bulk purchasing, reduced waste, no weather delays, concentrated labor — not from thinner materials. Transport loads actually require heavier framing than code minimum. If someone is selling you a low number by reducing specification, that is a supplier problem, not a modular problem.
Once set on a permanent foundation and deeded as real property, a modular home sells through the same MLS process as any other house. Most buyers cannot identify a finished modular home from the exterior, and most listings do not distinguish. The resale objection is a holdover from confusing modular with manufactured housing.
These are different legal categories with different codes. A manufactured home is built to the federal HUD code, arrives on a permanent steel chassis, and is titled like a vehicle. A modular building is built to the same state and local building code as site-built construction, is set on a permanent foundation, and is deeded as real property. Modular appraises, finances and insures as a house. That distinction affects your loan, your taxes and your resale.
Tell us the scope and the ZIP. You get a real delivered-and-installed number, not a "contact us for pricing" runaround.
We run a group of focused sites so you land on the one that matches what you actually need instead of a catch-all catalog.