Fifty at First

The formal application filed with the Planning Department in October 2026 describes a 913-foot, 56-story office tower of roughly 1.74 million square feet, with about 1.52 million square feet of office space, a 44,250-square-foot basement garage, a four-story open-box lobby behind full-height glass, and employee amenity floors on the 5th and 40th levels linked by a sky lobby, each with indoor space and an outdoor terrace. Gensler's facade is a pleated curtain wall wrapped in diagonal aluminum-panel latticework that resolves into a diamond-lattice crown; James Corner Field Operations handles the landscape, with public open space, a corner café at 1st and Stevenson and a pocket park on Mission Street, and Magnusson Klemencic Associates and MEYERS+ are structural and MEP engineers. A second phase at 528 Mission Street is drawn as a 605-foot, 54-story tower of about 636,100 square feet with 156 market-rate apartments (42 one-, 83 two- and 31 three-bedrooms), a 169-room hotel and a 2,000-square-foot restaurant. Complex-wide parking is 385 cars and 504 bicycles. BXP is development, leasing and marketing consultant, JLL the office leasing agent and SFMOMA the art consultant. Construction is estimated at about $600 million before development costs.