Sloane.

Project brief

Sloane is a 45-story residential tower under construction at 616 Battery Street in Seattle, at Seventh Avenue and Battery along Denny Way, where Denny Triangle, Belltown and South Lake Union meet. It occupies the former Elephant Car Wash site, a local landmark from 1951 until 2020. The roughly 440-foot tower holds 442 apartments, 90 of them set aside for households earning 60 to 85 percent of area median income. It also includes about 2,500 square feet of retail and five levels of underground parking with 262 stalls. Holland Partner Group is developing it with North America Sekisui House. Weber Thompson is the architect and landscape architect, and Susan Marinello designed the interiors.

The design takes its cue from the folding street grids around the site, where the downtown grid shifts. That geometry carries through the massing, the skin and the landscaping, and light and reflectivity are treated as materials in their own right. The facade uses a hybrid system that combines curtain wall and window wall features. The structure rests on a high-strength concrete shear wall core engineered with a performance-based seismic approach. A rooftop amenity space looks toward the Space Needle, Elliott Bay and Lake Union. Construction began in 2024, the tower topped out in July 2026, and completion is anticipated in the first quarter of 2027.

In 2022, BOGZA produced exterior renderings and a film for the tower. The visuals include a dusk view of its glass base and the street, with the Space Needle beyond.