ADU Design in Columbia, SC
Columbia runs on state government, the University of South Carolina, and Fort Jackson — with the Congaree River and the memory of the 2015 flood shaping every site decision.
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
- University buildings
- State government offices
- Military support facilities
- Healthcare
- Downtown mixed-use
- Suburban multifamily
Everything else your project needs
MEP Engineering in Columbia
Mechanical, electrical & plumbing design — permit-ready drawings, best price.
Structural Engineering in Columbia
Structural design, analysis & PE stamping — permit-ready drawings, best price.
Civil Engineering in Columbia
Site civil & land development — permit-ready drawings, best price.
PE Stamping in Columbia
Licensed PE stamps on your plans — fast turnaround, best price.
Pool Engineering in Columbia
Pool structural, systems & permits — engineered for plan check approval.
Engineering Cost Guide in Columbia
Straight answers on what engineering really costs.
ADU Design nearby
Charleston · Greenville · Mount Pleasant · North Charleston · Rock Hill · Summerville