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ADU Design in San Antonio, TX

San Antonio is a military city built around Joint Base San Antonio at Fort Sam Houston, Lackland, and Randolph, plus USAA headquarters, a growing healthcare sector, and River Walk tourism. Edwards Aquifer regulations and long, hot South Texas summers drive design.

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Best price · Quotes back fast · PE stamps backed by Apex Grid Engineering

ADU plans, start to permit

Site plan, floor plans, elevations, structural design, and energy compliance — the complete drawing set your city needs to approve an accessory dwelling unit.

Designed for ADU rules

Many states now streamline ADU approvals with state-level rules on size, setbacks, and fees. We design to the current rules in your jurisdiction so nothing gets kicked back.

Fast and affordable

ADUs are small projects — they shouldn't carry big-firm fees or timelines. Lean process, best price, quotes back fast.

Project types

  • Military and federal facilities
  • Hospitals and medical centers
  • Hospitality and River Walk development
  • Corporate campuses
  • Multifamily housing

Everything else your project needs

MEP Engineering in San Antonio

Mechanical, electrical & plumbing design — permit-ready drawings, best price.

Structural Engineering in San Antonio

Structural design, analysis & PE stamping — permit-ready drawings, best price.

Civil Engineering in San Antonio

Site civil & land development — permit-ready drawings, best price.

PE Stamping in San Antonio

Licensed PE stamps on your plans — fast turnaround, best price.

Pool Engineering in San Antonio

Pool structural, systems & permits — engineered for plan check approval.

Engineering Cost Guide in San Antonio

Straight answers on what engineering really costs.