The Core by GMA Architects flips the typical ADU layout upside down. The primary living space sits on the second floor, while the ground level stays flexible: use it as a garage, a workshop, a studio, or convert it into additional living space. That adaptability is rare in pre-approved plans.
Upstairs, vaulted ceilings and strategic window placement create a bright, open living area. The 2-bedroom, 1-bathroom layout uses an open floor plan to keep things from feeling cramped at 795 square feet. Cross-ventilation from well-placed windows means you won't be running the AC constantly in summer.
The centrally located kitchen and bathroom serve both levels, so the spaces can function together as one dwelling or operate somewhat independently. For homeowners who want a workshop or covered parking on the ground floor and a full apartment above, The Core is the only pre-approved option that does that.
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Plan Details
| Livable Area | 795 sq ft |
| Bedrooms | 2 Bedrooms |
| Bathrooms | 1 |
| Stories | 2 Stories |
| Architect | GMA Architects |
Features
- Flexible ground floor (garage, workshop, or living)
- Primary living space on second floor
- 795 sq ft with 2 bedrooms
- Vaulted ceilings with daylight from all sides
- Natural cross-ventilation
- Open floor plan throughout
- Centrally located utilities serve both levels
- Ground floor use can change over time
Best For
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The Core is designed by GMA Architects as part of the City of Eugene Pre-Approved ADU Program. Visit GMA Architects for plan licensing. West Branch Builders is an independent construction company and is not affiliated with the plan architects.