SAN FRANCISCO—Shorenstein Properties LLC says that LEED Gold certification has been achieved at 1 TENth, a newly redeveloped class A office building located in the Mid-Market submarket of San Francisco.  The building received Gold certification under the LEED Core and Shell rating system.

1 TENth, formerly known as 875 Stevenson Street, was built in 1975 as an expansion to the historical 1355 Market Street known as the “San Francisco Mart and Western Merchandise Exchange,” offering wholesale home furnishings to design professionals and retailers.  Shorenstein Properties acquired the building in March 2011 on behalf of its ninth investment fund with the intent to modernize and upgrade the Property to a class A standard for creative office use.

The newly re-clad 1 TENth is a cutting edge 10-story office structure comprised of 338,000 square feet.  Construction began in April 2013 and is currently 78% leased by Twitter and Fitness SF.  Twitter will take occupancy in 2015 and Fitness SF by the fall of 2014.  The redevelopment, designed by RMW Architecture includes a seismic upgrade, installation of a new unitized glass curtain wall, upgrades to the mechanical, electrical, plumbing, fire protection, life safety, and security systems, and renovated restrooms and lobby.  1 TENth and 1355 Market Street are joined by a recently constructed landscaped plaza that creates a cohesive urban campus environment.

The LEED Core and Shell rating system is designed to meet the needs of commercial property development and redevelopment projects.  This rating system addresses the sustainability of base building elements including the site selection, mechanical and electrical systems, plumbing, fire protection, and building envelope.  Core and Shell enables certification of building interior space by tenants under the LEED for Commercial Interiors rating system.

Some sustainability highlights of 1 TENth include:

• Low flow restroom fixtures and automatic faucets to reduce domestic water consumption

• Energy-efficient heating, cooling, and ventilation system

• Direct electrical sub-metering for tenant spaces

• Recycling program for the diversion of construction materials from landfill

• Card-accessed secure bicycle storage and showers

• Renovated lobby using reclaimed marble from 1355 Market

• Window replacement with high-efficiency glazed glass

Shorenstein owns more than fourteen million square feet of LEED-certified property at the Silver level or higher.  Thirty-eight buildings currently owned by the company are LEED certified. Shorenstein recently sold Mission Tower II, a LEED Platinum office building in Santa Clara, CA, and is in the formal process of pursuing LEED certification for one additional building.

Shorenstein's commitment to sustainability extends well beyond its LEED program.  The company is a partner in EPA'S ENERGY STAR program and 78% percent of its portfolio has either qualified for the ENERGY STAR® label or is pending approval. Shorenstein is also a corporate partner in the Department of Energy's Better Buildings Challenge, where it is committed to reducing energy intensity by 20% in properties it owns and manages by 2020.  For the past several years, the company has also been a participant in the Environmental Defense Fund's Climate Corps Initiative.