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DADU with a shed roof and fiber cement siding

Madrona DADU

by Grouparchitect
October 28, 2024

Seattle, WA This two level 686 square foot detached accessory dwelling unit in Seattle’s Madrona neighborhood was built in conjunction with a new residence on the property for the owners.  The DADU is intended for use by extended family and includes an open main level living space with a lower level bedroom, bathroom and laundry area. Grouparchitect Team: Scott LaBenz AIA LEED AP, Gavin Erickson, Mike Laurencelle Contractor: Metamorphosis Construction Structural: Carter Quinn Norlin...

A modern one-story DADU in a Seattle single family neighborhood. Modern Pacific Northwest design and detailing with natural and modern details.

Greenwood DADU

by Grouparchitect
December 4, 2020

Seattle, WA This DADU, located in Seattle’s Greenwood neighborhood, sits on an oversized lot with a large side yard.  It takes shape as a shed roof form with vaulted ceilings.  The main level is designed for aging in place with a stepless entry, curbless shower, wide door openings and a basement level that could be used for caretakers' quarters. Grouparchitect Team: Scott LaBenz AIA LEED AP, Kevin Sokoloski, Amrita Batra Contractor: Myron Medearis...

Wallingford Renovation

by OSC
April 4, 2008

Seattle, WA An attic conversion and dormer addition to a 1900s era craftsman home in Seattle’s Green Lake neighborhood. This addition to the back side of the home matches the historic style and detailing of the home to blend in with the original home. A new central stairway and master suite were added and the kitchen and bathrooms updated. The home features an existing accessory dwelling unit in the basement that was maintained. General Contractor: 36th Ave Design Build Grouparchitect Team: Scott LaBenz...

Shoreline Option

by OSC
December 1, 2005

Shoreline, WA Located in Shoreline, Washington, This Option Series prefabricated modular home was customized to meet the practical needs of the client and site. A split-level shared entry created an internal shared, yet private, connection between the upper level prefab home and an attached accessory dwelling unit (ADU) at the lower basement level. The ADU includes its own exterior access with a private below grade patio and window wells to allow natural day lighting. A large backyard deck allows a strong...

Britannia Beach Prefab

Britannia Beach Custom Prefab

by OSC
November 2, 2004

Squamish, British Columbia This 4,500 sf house is designed in modular components for offsite fabrication for a homeowner in the Britannia Beach neighborhood of Squamish, British Columbia. The house is configured to provide flexibility in use, allowing for comfortable living for a multi-generational family. Wide hallways and doorways, a fully accessible shower and a stacking central closet with removable floors allowing for conversion into an elevator if required were provided to allow for aging in place living. A secondary suite is...

DADU Series

by OSC
July 1, 2002

Seattle, WA The DADU Series prefab modular Detached Accessory Dwelling Unit (DADU) Home is designed to meet the City of Seattle’s new zoning regulations allowing for backyard cottages in residential zones. Designed to the standards of the International Residential Code, it can be built on any site throughout the United States. The design allows for a variety of architectural styles within the same modular design. The base model modules can be arranged in multiple configurations ranging in size from 280sf to...

Bantam Box Cottage

by OSC
February 10, 2002

Seattle, WA Featured in the Backyard Cottage Design Challenge, this detached accessory dwelling unit (DADU) is designed to meet the city of Seattle’s new zoning regulations allowing for backyard cottages in residential zones. The design allows for a variety of architectural styles within the same modular design. Designed for prefabricated construction while still adaptable to site built construction, the modules can be arranged in multiple configurations ranging in size from 280sf to 500sf. Majority of interior elements and finishes including entire...

Leschi Custom Prefab

by OSC
January 1, 2001

Seattle, WA Located in the Leschi neighborhood of Seattle Washington, this Option Series prefabricated modular home was customized to meet the needs of the client and site. A lower-level site built accessory dwelling unit with its own entry is proposed below a two-level prefabricated modular home. Decks are cantilevered on all levels on view side of the home allowing for indoor-outdoor living on all levels including the accessory dwelling unit. A small backyard patio with outdoor shower and hot tub creates...

ADU floor plan

Maple Leaf ADU

by Grouparchitect
December 4, 2000

Seattle, WA A remodel to an existing residence in Seattle’s Maple Leaf neighborhood to convert an existing basement into an accessory dwelling unit.  Basement laundry and mechanical partitioned as a separate shared area with the main residence above. Grouparchitect Team: Emily McNichols AIA LEED AP Homes...

Lake Farm Guest House

by OSC
July 1, 2000

Port Angeles, WA The client’s gradual necessity for live-in caregivers led to a unique response – providing a new living quarters for the client who would surrender her home to the caregivers in order to live in a smaller space. The program called for simple, composed, highly detailed and efficient quarters, as influenced by the client’s long-time residence in small spaces such as boats, trailers, and the like. The result was a miniature cabin, one which was set apart from the...