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商业地产-350 Mission Street (Under Construction) – San Francisco – 94103 – 6/14

Commercial Buildings (Under Construction) – San Francisco – 94103 – 6/14


350 Mission Street

350 Mission Street is a skyscraper under construction in the South of Market district of San Francisco, California. Current designs call for 30 stories and 455 ft (139 m) above street level. Upon completion, the building plans to attain LEED Gold status.

General information
Status Under construction
Type Commercial offices
Architectural style Modernism
Location 350 Mission Street
San Francisco, California
Coordinates 37.7908°N 122.3966°WCoordinates: 37.7908°N 122.3966°W
Construction started February 2013
Estimated completion 2015
Cost US$250 million
Height 455 ft (139 m)
Roof 424 ft (129 m)
Technical details
Floor count 30
Floor area 420,000 sq ft (39,000 m2)
Design and construction
Architect Skidmore, Owings and Merrill
Developer Kilroy Realty Corporation
Structural engineer Skidmore, Owings and Merrill
Main contractor Webcor Builders
Other information
Parking 60 car
64 bicycle

Local Map



350 Mission Street is located at the northeast corner of Fremont Street and Mission Street in a part of the South of Market district typically considered an extension of the Financial District. It is located near several other downtown skyscrapers, including the adjacent Blue Shield of California Building and 45 Fremont Street. Across Fremont Street to the west is 50 Fremont Center, and across Mission Street to the east is Millennium Tower. To the south, at the opposite corner of the intersection is the site of the Transbay Tower. It is located a block from Market Street and a half block from the new Transbay Transit Center.


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 ft (91 m).
The second version of the project was compliant with the local 550 ft (168 m) height restriction. Even though the city of San Francisco released a zoning plan that allowed the tower to rise as high as 700 ft (213 m) on May 1, 2008, the developer the reduced size of the project to 375 ft (114 m) about two months later. The third version stood significantly shorter than the proposed height limit because the developer stated that it was uneconomical to build any taller 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 US$52 million. In December 2012, Salesforce agreed to lease the entirety of the proposed tower, and Kilroy sought to add an additional six stories to the proposed 24-story tower, increasing the office space to 420,000 square feet (39,000 m2). In February 2013, demolition started on the site’s existing four-story building, formerly the home of Heald College. On August 15, 2013, the S.F. Planning Commission officially approved the height increase to 30 stories. Kilroy plans to deliver the tower to Salesforce in 2015.

350 Mission Street will establish a new Platinum LEED benchmark for a 21st Century work place in San Francisco. The concept of urban ecology embodies a holistic approach to urban architecture, considering the built urban context, the natural environment, and the social and cultural vitality of the city.

350 Mission is located at the heart of the city’s newest business district and adjacent to the future Trans bay Transit Center.

350 Mission will be an urban landmark in terms of its presence on the San Francisco skyline as well as at ground level, where people will have an interactive experience in the building’s public lobby on a daily basis. The building is to be a LEED Platinum design.

Next Generation Design

This innovative new building concept will be achieved by project developer Kilroy Realty Corporation & Management, architects of the international firm, Skidmore Owings & Merrill, LLP, and engineers from WSP Flack + Kurtz, one of the most progressive and leading engineering firms in the world today.

The 27-story 350 Mission tower will address both the public and private realms with the following outstanding features:
Interactive public lobby
Real time all digital universal display and large scale video canvas and dashboard
Restaurant and café
Sundry Shop
Sustainable design and LEED Platinum features
High performance work place design to increase productivity
High performance design focused on efficiency and economic returns
Floor to floor ceiling heights above and beyond average.
High performance eco friendly mechanical systems
Air filtration and 100% outside air throughout the building
Great views with a unique curtain wall design taking full advantage of the building height and amazing location
Building Management System (BMS)
Fitness Center with lockers and showers
Bike Rack storage
High Performance Space

350 Mission’s design provides an extraordinary public space experience and the next level of work place design. Some of the features will include:
Entirely column free floor plates for an open space look and feel
10 foot finished ceiling heights
Full Height Glass – better day lighting
An experience of 50 foot heights in the entrance lobby affording a gallery experience with public art and events.
27 stories of stunning views and artistic use of materials all balanced to low environmental impact.
Sustainable design that goes to the next level utilizing the best of Silicon Valley’s clean tech product revolution.
State of the art Building management system with cost saving continuous commissioning software all designed to save the environment, save money, and create a high performance work place.
Strategic floor by floor zoning and HVAC controls systems for custom comfort and flexible work hours.
100% outside air capabilities
Raised floor to accommodate HVAC, telephone, and Data Labeling
One of the best Locations to live work and play

350 Mission is located at the heart of the city’s new business district and catty-corner from the future Transbay Transit Center – currently under construction – and Caltrans rail. This location is in close proximity to other Class A office and luxury high rise residential projects offers unparallel access and convenience for tenants and visitors. 350 Mission will establish its urban landmark status in San Francisco through the way it meets the sky and especially the ground.






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