There’s a reason why prefabs are becoming ever so popular in the booming northwestern corner of Seattle, Washington.

Although Seattle has long been acclaimed for being surrounded by water, mountains, and evergreen forests, more recently, it’s become a hotbed for modern design and high-quality architecture. 

With real estate prices at an all-time high and inventory at an all-time low, it’s understandable why prefabricated and modular homes are increasing in popularity. Ahead are eight of our favorite prefabs in the Seattle area.

1) A One-Story Prefab by Stillwater Dwellings 

Seattle-based Stillwater Dwellings designed this one-story prefab home just north of Seattle in Edmunds, Washington for a client who wanted to “age in place.” With this in mind, Stillwater provided wide hallways and an open concept living space, with the company’s signature glass wall for year-round daylight and views of the outdoors. A deep overhanging roof shades the interior, along with other features like clerestory windows, natural materials, and high ceilings reflecting Stillwater’s commitment to sustainable design and the environment.

Seattle–based Stillwater Dwellings designed this one-story prefab just north of Seattle in Edmonds, Washington, for a client who wanted to “age in place.” With this in mind, Stillwater incorporated wide hallways and an open concept living space with the company’s signature glass wall for year-round daylight and views of the outdoors. A deep overhanging roof shades the interior, along with other features such as clerestory windows, natural materials, and high ceilings, to reflect Stillwater’s commitment to sustainable design. 

Photo Courtesy of Stillwater Dwellings

As Washington State’s first LEED Platinum Modular Home, Lane Street was completed by Greenfab with a focus on energy reduction through a combination of eco-friendly exterior materials and energy-conscious heating and cooling equipment, including a hybrid heat pump water heater and energy recovery ventilation. The home, at 1,870 square feet, consists of three bedrooms and was completed for an all-in cost of $405,000 in 2010.

As Seattle’s first LEED Platinum Modular Home, Lane Street was completed by Hybrid Architecture and Greenfab with a focus on energy reduction through a combination of eco-friendly exterior materials and energy-conscious heating and cooling equipment, including a hybrid heat-pump water heater and energy recovery ventilation. The 1,870-square-foot home consists of three bedrooms, and was completed for an all-in cost of $405,000 in 2010.

Photo: HyBrid Architects

Inspired by the traditional shingle-clad homes in the neighborhood, this prefab home in Seattle was based off a base design by Method Homes and then customized by Grouparchitect to accommodate the client’s needs and a unique site. Doors were widened, a rear porch was enclosed for an additional bedroom, and specialized storage including an enlarged laundry room, a generous pantry, and built-in cubbies for each member of the family were added.

Inspired by the traditional shingle-clad homes in the neighborhood, this prefab was based off a design by Method Homes and then customized by Grouparchitect to accommodate the client’s needs, as well as the unique site. Doors were widened, a rear porch was enclosed for an additional bedroom, and specialized storage was added, including an enlarged laundry room, a generous pantry, and built-in cubbies for each member of the family. 

Photo Courtesy of Method Homes

Designed as a complex of eight housing units for a tight urban infill site, the MOD urban apartments were the first modular apartment building constructed in Seattle. When completed in 2013, the project achieved LEED Gold certification; its interior layouts eliminated the need for an elevator or internal hallways, and was outfitted with Energy Star appliances, low VOC paint and finishes, and radiant heating.

The MOD Urban Apartments were designed as a complex of eight housing units for a tight urban infill site. When completed in 2013, the project achieved LEED Gold certification. Its interior layouts eliminated the need for an elevator or internal hallways, and were outfitted with Energy Star appliances, low VOC paint and finishes, as well as radiant heating. 



Photo: HyBrid Architects

Consisting of three prefabricated units in West Seattle on a 5,000 square-foot lot, the units range from 1,250-1,400 square feet, each with three bedrooms and two and a half bathrooms. The generous glazing of the living rooms are set back from the exterior cedar rainscreen, and the rest of the facade is sheathed in metal panels. The ground floor was built onsite, but the upper two floors were prefabricated offsite in a factory.

Consisting of three prefabricated units in West Seattle on a 5,000-square-foot lot, the townhomes range from 1,250 to 1,400 square feet, and each have three bedrooms and two and a half bathrooms. The generous glazing of the living rooms are set back from the exterior cedar rainscreen, and the rest of the facade is sheathed in metal panels. The ground floor was built onsite, and the upper two floors were prefabricated offsite in a factory. 

Photo by Dale Tu

This hybrid prefab house was designed for Habitat for Humanity’s Next Fifty Celebration in Seattle, which commemorated the 1962 World’s Fair with new visions of future domestic life. At the center of the home’s 1,400 square feet sits a prefabricated wet core for a centralized, compact location of the home’s electrical, plumbing, and HVAC systems. The two-story home has four bedrooms and two bathrooms, and its exterior was constructed of panelized segments.

This hybrid prefab was designed for Habitat for Humanity’s Next Fifty Celebration in Seattle, which commemorated the 1962 World’s Fair with new visions of future domestic life. At the center of the home’s 1,400 square feet sits a prefabricated wet core for a centralized, compact setting of the property’s electrical, plumbing, and HVAC systems. The two-story home has four bedrooms and two bathrooms, and its exterior was constructed of panelized segments. 

Photo by Chi Duong

In a small community with a common garden, FabCab built this prefab home incorporates high-quality materials like Douglas fir to keep the home from feeling clinical, despite its construction in a factory. The architects incorporated universal design features like flooring that wheelchairs can roll over easily and grab bars, making the homes appropriate for aging clients.

In a small community with a shared garden, FabCab built this prefab home, which integrates high-quality materials to keep the dwelling from feeling clinical, despite its construction in a factory. The architects also incorporated universal design features to make the homes both appropriate and comfortable for aging clients. 

Photo by Dale Lang

Perched on a steep urban hillside, this 3-bedroom, 2-bath home featured energy-efficient elements including triple-glazed windows, high r-value super insulation, and FSC bamboo floors to achieve LEED Platinum certification. Even its garage was designed to be sustainability oriented: it is prewired for electric charging! The design’s emphasis on livability and openness are reflected in its ample outdoor terraces and flexible-use basement.8) Cascade Alley House 2 with Method Homes and David Foster Architects

Perched on a steep urban hillside, this three-bedroom, two-bath home features energy-efficient elements including triple-glazed windows and FSC bamboo floors to achieve LEED Platinum certification. Even the home’s garage was designed to be sustainable, as it is prewired for electric charging. The design’s emphasis on livability and openness are also reflected by ample outdoor terraces, as well as the flexible basement.

Sloan Ritchie

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