Interiors & Accessibility

• Roll-In Shower with Built-In Bench and ADA-compliant fixtures

• Adjustable-Height Countertops and Accessible Undermount Sink

• Power-Operated Lift Mechanisms for universal adaptability (Optional)

• Wall-Mounted Controls and Smart Switches for ease of use

• Grab Bars, Arm Supports, and Flexible Shelving Systems supporting aging in place

• In-Unit Laundry Hookups for washer/dryer

• Open-Concept Living Space with clear maneuvering zones

• Lofted Space providing additional storage or sleeping area

Exterior Finish Options

• Vertical Board & Batten – classic rhythm and durability

• Smooth Stucco – weather-resistant and low maintenance

• Black Horizontal Siding – contemporary, durable, and resilient

• Cedar Shake Siding – natural texture with timeless appeal

A⁺DU is an innovative and scalable housing prototype that was recognized with an honorable mention by the L.A. County Homeless Initiative Housing Innovation Challenge. A⁺DU was developed in partnership with Union Station Homeless Services, to be implemented as part of scattered-site housing programs. A⁺DU expands the concept of “Accessory Dwelling Unit” to exponential possibilities: Accessible, Adjustable, Automated, Autonomous, Assemble-able, Adaptable, Affordable, Aspirational and more. An alternative to large scale affordable housing models, A⁺DU increases housing stock by 50 percent. A⁺DU is standalone, easily manufacturable, and replicable. The design focuses on structural, climatic, functional, and contextual flexibility and performance.

A⁺DU Prototype is a 467-square-foot accessory dwelling unit. This compact unit includes one bedroom, one bathroom, kitchen, full living area, and a loft for additional occupancy or storage space. Guided by universal design, it features sliding doors, adjustable shelves and sinks and ADA maneuvering clearances.

Structure & Envelope

• Board and Batten Cement Board Siding (optional finish variations)

• Standing Seam Metal Roof (Class A rated) with concealed gutters

• Roof-Top PV Panels for on-site energy generation

• Aluminum Trim and weather-protected detailing

• 130-Gallon Rain Tank with flexible hose connector, overflow pipe, and secured strap assembly

• Cast-In-Place Concrete Service Pad with drainage slope and reinforcement

• Mini-Split Heat Pump Unit providing efficient heating and cooling

• ERV Intake and Exhaust Vents for balanced ventilation

Mechanical, Electrical & Sustainability

• Electrical Service Weatherhead, Main Panel, and Concealed Conduit integrated in wall

• AC Disconnect Switch between PV inverter and electrical grid

• Bathroom and Range Hood Exhaust Vents for air quality control

• Water-Saving Fixtures and exterior Hose Bibb for utility use

• Solar-Ready Roof Infrastructure supporting energy independence