Treasure Island Master Planning

Treasure Island is a 400-acre artificial island built by the Army Corps of Engineers in 1936-37 in San Francisco Bay. In 2011, a masterplan for the island was developed and approved by the City of San Francisco. CO- was commissioned by the master developer of the island to rethink issues of density, urban quality, and open space for 8,000 planned units.

Treasure Island Master Planning zoning
Treasure Island Master Planning massing

Leveraging our multi-scalar aptitude as designers and our grasp of the financial and political dimensions of development, we have worked within the framework of the twenty-year-old master plan to recommend options that would align development with stable long-term values. Requiring the capacity to look at the large picture as well as individual elements simultaneously, the project is an avenue to engage with government, communities, and larger organizations to examine the nature of how new districts should be developed and later perform. At least a quarter of the units for the plan are designated for affordable housing, and projects such as these allow us to question the appropriate distribution of housing types that are financially viable, and socially and environmentally sustainable.

West of Fairview Affordable Housing

CO- is the development manager and designer of a new 100% affordable community of 100 family and farmworker apartments in Hollister, CA. The 4.6-acre community is envisioned as a series of 3-story breezeway-type buildings organized around a central community hub for outdoor recreation and activity areas. The site is anchored by a single-story community building that houses indoor recreation spaces such as community rooms, fitness centers, and after-school activity areas, in addition to leasing and management offices and various residence services facilities. Outdoor recreation amenities include tot-lots and play areas, a pickleball court, BBQ’s and communal gathering spaces, open activity areas, as well shaded seating pockets. The proposed site plan and overall design are inspired not only by Hollister’s rich agricultural heritage but also by the site’s vibrant setting surrounded by newer community amenities constructed as part of the overall master-planned community.

CO- is providing development project management and design services in support of the new community. The 100 units of critically needed affordable housing will serve low- and extremely low-income families and agricultural workers earning between 30-60% area median income (AMI). The project has been submitted for entitlements and is anticipated to break ground in 2024.

View of West of Fairview Affordable Housing from above
Existing Site