221 North Matilda - The Conco Companies

The Conco Companies is providing a full range of concrete services on the 221 N. Mathilda Project in Sunnyvale, CA.  The three-story, Class A office building is being developed by the owner, Spear Street Capital and designed by SmithGroupJJR. South Bay Construction is serving as the general contractor and the structural engineer is SEI Structural Engineers Inc.  The building, which is being developed on a 4.3 acre greenfield site includes a partial below grade parking structure to accommodate 401 parking stalls. Located between N. Market Ave and Sobrante Way just off W. California Ave, it is close to the Sunnyvale Caltrain station, the San Francisco Peninsula commuter rail service. 

Conco’s responsibilities on the project include providing concrete pumping, reinforcement, formwork, finishing, and shotcrete services.  During the project, we expect to place 7,600 cubic yards of concrete as well as shotcrete.  This project consists of 1,150,000 pounds of rebar and post tension reinforcement of which Conco is having placed by others due to factors beyond our control.  We started the project in August 2017 will complete the job in July 2018.  

The architect, SmithGroupJJR says the building’s most significant design feature is the “striking, custom 2,000 sq. ft., laminated glass artwork that will span the building’s east façade.”  It was designed to reflect the site’s history as an orchard.  The building will have an open, modern warehouse feel with floor-to-floor windows and industrial elements.  The project expects to receive LEED-NC Platinum certification and will include sustainable design features such as energy efficient building systems, water conserving fixtures, architectural solar shading, and outdoor amenities.  There will also be green screen cladding on the parking garage.  

Conco’s mission is to be the best supplier of concrete services in the Western United States and to bring expertise, experience and quality to each project.  We continue to upgrade and expand facilities to better serve the growing market for public works projects, commercial, parking structures, educational, and other construction development.

221 North Matilda - The Conco Companies
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