Tweto Architecture
Irvington ADU front elevation with blue-grey lap siding, craftsman gable brackets, French doors, and covered entry porch, Irvington Historic District by Tweto Architecture

Irvington ADU

ADU · Northeast Portland

Completed in early 2022, this 468 SF detached ADU is located near Irving Park in the Irvington Historic District. It is a one-bedroom ADU built for the client's mother who moved from out of state to live close to her grandkids.

Contractor: Petrina Construction & East County Custom Homes

Vaulted great room with skylight, south-facing windows, globe pendant chandelier, and kitchen at left, Irvington ADU by Tweto Architecture
Kitchen with white oak shaker cabinets, grey subway tile backsplash, floating wood shelves, globe pendants, and stainless appliances, Irvington ADU by Tweto Architecture

A great room with a generous kitchen features a vaulted ceiling and south-facing exposure to make the small space feel large and bright. This area opens to a future exterior patio area. A covered front porch transitions to an entry hall with access to the bathroom and bedroom, which are situated along the north side of the ADU. A storage closet offsets the lost storage of the garage. The design takes cues from the main craftsman-style home but scaled to fit the size of the ADU.

At the time, the project required a complex declassification process to allow the demolition of the existing crumbling garage and Historic Review for the ADU. (New zoning rules passed in March of 2022 now allow most accessory structures (garages, etc.) in Historic Districts to be demolished without Historic Review or reclassification. With some restrictions, new Accessory Structures (including garages and ADUs) can be built in Historic Districts without going through the Historic Resource Review Process.)

Corner exterior view showing craftsman gable brackets, covered entry porch with French doors and wall sconce, blue-grey lap siding, Irvington ADU by Tweto Architecture Front elevation of Irvington ADU with craftsman gable brackets, French doors with grille lights, and covered entry porch, by Tweto Architecture
Rear and side exterior showing blue-grey craftsman siding, white trim details, and wood entry door, Irvington ADU by Tweto Architecture
Floor plan of Irvington ADU showing covered porch, entry, bedroom with built-in closet, bathroom, living-dining, kitchen, and storage, by Tweto Architecture Kitchen sink wall with skylights above, globe chandelier, grey subway tile backsplash, floating oak shelves, and stainless appliances, Irvington ADU by Tweto Architecture
Great room and kitchen with vaulted ceiling, tall oak storage wall, gas range, globe pendant chandelier, mini-split, and entry door beyond, Irvington ADU by Tweto Architecture
Bedroom with floor-to-ceiling white built-in wardrobe, upper cabinets, integrated desk with open shelf, and drawers with black hardware, Irvington ADU by Tweto Architecture
Entry hall with white craftsman door with six-light grille and black hardware, oak hardwood floor, bathroom and bedroom doors beyond, Irvington ADU by Tweto Architecture Walk-in shower with white subway tile walls, teal mosaic tile floor, and built-in niche with mosaic tile accent, Irvington ADU by Tweto Architecture
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