ADU Design in San Rafael, CA
Marin County's seat and largest city, San Rafael sits at the foot of Mount Tamalpais with a historic downtown, the Frank Lloyd Wright-designed Marin Civic Center, and a mix of healthcare, professional services, and light industry. Heavy winter rainfall, hillside landslide risk, bayfront marsh, and high seismicity shape its engineering challenges.
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
- Healthcare and medical office buildings
- Civic and county government facilities
- Hillside residential and custom homes
- Historic downtown retrofits
- Light industrial and flex buildings
- School modernizations
Everything else your project needs
MEP Engineering in San Rafael
Mechanical, electrical & plumbing design — permit-ready drawings, best price.
Structural Engineering in San Rafael
Structural design, analysis & PE stamping — permit-ready drawings, best price.
Civil Engineering in San Rafael
Site civil & land development — permit-ready drawings, best price.
PE Stamping in San Rafael
Licensed PE stamps on your plans — fast turnaround, best price.
Pool Engineering in San Rafael
Pool structural, systems & permits — engineered for plan check approval.
Engineering Cost Guide in San Rafael
Straight answers on what engineering really costs.
ADU Design nearby
Alameda · Alhambra · Anaheim · Antioch · Apple Valley · Arden-Arcade · Bakersfield · Baldwin Park · Bellflower · Berkeley · Beverly Hills · Burbank