Lake Washington carriage house

Location: Withheld by request

Owner/developer: Withheld by request

Project team: Aldrich + Associates, general and concrete contractor; Baylis Architects, architect; BTL Engineering, structural engineer; CalPortland, ready-mix supplier

This two-story, industrial-style garage was designed to resemble historical repair and display garages, but remain compatible with the adjacent house on the owners’ 1.5-acre property.

The 4,500-square-foot upper level has space for seven or eight cars, and houses a central car wash, and storage for cleaning and repair equipment.

The exposed architectural concrete walls serve as the structural element for the retaining walls on the east side of the lower level. They were formed with high-density overlay plywood with cast-in-place concrete, with exposed tie holes in a carefully placed pattern.

The vaulted roof, with its exposed wood truss members and round spiral ducts, enhances the industrial look of the interior.

Exterior concrete surfaces were lightly sacked and stained. The upper floor is exposed concrete on metal deck with a tooled pattern and clear acrylic sealer.

Exterior deck areas are surfaced with precast concrete pavers on pedestals, and are accessed by large industrial roll-up metal-and-glass garage doors.

The 2,000-square-foot lower level includes a bathroom, mechanical room, kitchen and garage for storing more vehicles and water sports equipment. The floors are slab on grade concrete with a clear acrylic sealer.