ADU Design in Fairfax, VA
Fairfax is the economic center of Fairfax County — the county government seat, corporate headquarters, George Mason University nearby, and dense suburban commercial along the Dulles corridor spillover — with a deep pipeline of office, mixed-use, and institutional development.
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
- Corporate office & headquarters
- Government & institutional
- Mixed-use & multifamily
- University-adjacent
- Healthcare & medical
- Retail & commercial
Everything else your project needs
MEP Engineering in Fairfax
Mechanical, electrical & plumbing design — permit-ready drawings, best price.
Structural Engineering in Fairfax
Structural design, analysis & PE stamping — permit-ready drawings, best price.
Civil Engineering in Fairfax
Site civil & land development — permit-ready drawings, best price.
PE Stamping in Fairfax
Licensed PE stamps on your plans — fast turnaround, best price.
Pool Engineering in Fairfax
Pool structural, systems & permits — engineered for plan check approval.
Engineering Cost Guide in Fairfax
Straight answers on what engineering really costs.
ADU Design nearby
Alexandria · Arlington · Chesapeake · Fredericksburg · Hampton · Herndon · Leesburg · Manassas · Newport News · Norfolk · Richmond · Roanoke