350 Mission Street - History

History

The first version of the project was initially proposed at 850 ft (259 m) with 1,000,000 sq ft (93,000 m2) of office space, but the developer reduced the project height by 300 ft (91 m) and the floor area by over 600,000 sq ft (55,700 m2). This was because the first version of the project exceeded the local height limit by 300 feet (91 m).

The second version of the project was compliant with the local 550 foot (168 m) height restriction, at 550 feet (168 m) tall. Even though the city of San Francisco released a zoning plan that allowed the tower to rise as high as 700 feet (213 m) on May 1, 2008, the developer the reduced size of the project to 375 ft (114 m) and 27 stories about two months later. The third and current version stands significantly shorter than the proposed height limit because the developer stated that it was uneconomical to build taller than 27 stories on a 19,000 sq ft (1,800 m2)-sized lot. The square footage of the building increased slightly to 350,000 sq ft (33,000 m2), up from 340,000 sq ft (32,000 m2).

In October 2012, GLL Development & Management sold the project to Kilroy Realty for $52 million. In December 2012, Salesforce agreed to lease the entirety of the proposed tower, and Kilroy sought to add an additional three stories to the proposed 27-story tower. In February 2013, demolition started on the site's existing four-story building, formerly the home of Heald College. Kilroy plans to deliver the tower to Salesforce in 2015.