ADU Design in Tacoma, WA
Tacoma is a working port city — the Port of Tacoma is among the largest container ports in North America — with a growing downtown, the Joint Base Lewis-McChord military community next door, and a manufacturing and maritime industrial base on the tideflats.
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
- Port and maritime industrial
- Tideflats manufacturing
- Downtown multifamily and mixed-use
- Military-adjacent commercial (JBLM)
- Historic adaptive reuse
- I-5 corridor warehouse and distribution
Everything else your project needs
MEP Engineering in Tacoma
Mechanical, electrical & plumbing design — permit-ready drawings, best price.
Structural Engineering in Tacoma
Structural design, analysis & PE stamping — permit-ready drawings, best price.
Civil Engineering in Tacoma
Site civil & land development — permit-ready drawings, best price.
PE Stamping in Tacoma
Licensed PE stamps on your plans — fast turnaround, best price.
Pool Engineering in Tacoma
Pool structural, systems & permits — engineered for plan check approval.
Engineering Cost Guide in Tacoma
Straight answers on what engineering really costs.