PROJECT NAME LOT SIZE BUILDING SIZE LOCATION PROJECT ...

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PROJECT NAME

47+7 Apartments

LOT SIZE

6,420 SF

BUILDING SIZE

16,525 SF

LOCATION

Seattle, WA

PROJECT TYPE

Multi-Familiy Housing

47+7 Apartments 47+7 is immediately visually striking; its steel exoskeleton communicating the gravity of its unique design. Upon closer inspection subtle qualities are revealed. In contrast to the rigid outer structure, a softer element emerges via the sheen of the exterior skin, resulting in a display of ephemeral colors. While the structure casts prominent shadows on the paneling, a fine grain pattern is evident in the railings, signage, foliage, community bench, and solar array, lending qualities of permanence, timelessness, and adventure. 47+7 was conceived from a merger of structural form and practical function, built from innovative prefabricated parts, and inspired by the technology and natural beauty of the Pacific Northwest.

The walls are structurally insulated panels, prefabricated to a tolerance of less than ¼”, creating superior moisture, thermal, and acoustic performance. Solar panels heat water for domestic use and hydronic radiant heat, providing all heating and hot water 10 months out of the year. The interior casework has a recycled core with bamboo veneer. Each unit contains an all-in-one electrical panel, enabling 15 low voltage LED light fixtures to be employed. Incredibly, all 500+ lights on the building use merely .4 watts per SF; less than 50% of the energy code. Wireless smart home technology facilitates additional energy savings. Monthly electric bills are projected at $7/month/unit.

The project features 24 units at 466-595 SF. The structure is a steel frame with concrete slab on grade. Levels 2-6 are composed of a total of 129 floor, wall, and roof panels, delivered pre-assembled with plumbing, electrical, fire sprinklers, and finishes fully integrated. This allowed a lean construction crew of 10 people to handle 90% fewer parts. The innovative solution cut construction time by 50% and delivered a highly sustainable, aesthetically appealing building.

With its iconic form and visible site, 47+7 serves as a new landmark for sustainable living in Seattle’s University District. The property’s small footprint makes it a generous, contextual neighbor. Open circulation and thoughtful community space foster an active and social lifestyle, as evidenced by the bikes and grilles populating the building’s decks. Small space living is optimized by a flexible wall grid that can be used to hang shelves, artwork, or outdoor equipment. 47+7’s design achieves transparency through floor-to-ceiling glazing and open circulation, while the structure conveys strength and stability conducive to feeling at home and comfortably secure.

Full scale mock ups of two units were constructed in a south Seattle warehouse in 2011

Small space living is optimized at 47+7 with abundant daylight, open plan, and a flexible wall grid for shelving or hanging art

Residents enjoy energy savings, wireless smart home technology, proximity to Seattle's University District, and numerous transportation options

Each unit has an all-in-one electrical panel which enables 15 low voltage/LED light fixtures to be employed (upper left)

Spectacular views from the open circulation encourage an active lifestyle (L)

Solar array provides heating and hot water 10 months of the year (R)

Site plan and aerial photo showing visible location adjacent to Interstate 5 (above) and Streetscape study (below)

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Levels 2-6

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Level 1

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Building Section Looking East

Design studies for resident entry and circulation (L) and East Elevation (R)