The 1021 O Street State Office Building will serve as the temporary home for California’s legislative and executive elected officials and staff while the State of California Capital Annex is being designed and constructed, and fulfills critical office space infrastructure needs for the state in the long term. The project was one of California’s first forays into Progressive Design-Build, and innovation was very much a priority for the project team which included several DBIA credential holders in leadership roles.
The result was a groundbreaking building that set a new standard for sustainability and flexibility. The building is California’s first net-zero, all-electric state office building, achieving LEED Platinum status and featuring renewable energy, energy efficient building systems, recycled materials, natural day lighting, native vegetation and water-conserving design. The building is powered by 100% renewable energy through community solar agreements, resulting in 103% energy savings. The project achieved the maximum number of LEED Innovation points for strategies including construction waste diversion, integrated pest management, green cleaning policies and low mercury lamps. An interactive dashboard in the building lobby shares live metering of climate, air quality, and the building’s energy consumption and renewable energy generation.
Tackling Challenges to Deliver Project on Time
The project was awarded to the design-build team with a hard end date, based on the State Legislature’s governing schedule. The team tackled this challenge from the beginning, with a project design that could be built quickly. The COVID-19 pandemic threatened to derail the project’s schedule, but the project team made the decision to use shift work, running two shift crews essentially 24/7. They managed to persevere to meet the original deadline despite the challenges, which allowed the state to maintain their legislative calendar. It is estimated that if they had missed the completion date, it would have cost the government up to $130 million in delays.
The 1021 O Street State Office Building embodies the state of California’s goals to achieve carbon neutrality and serves as a benchmark for future California Department of General Services buildings, setting a new standard for sustainability and flexibility for the state.
|Client/Owner:||California Department of General Services|
|Design-Build Firm:||Hensel Phelps|
|Engineer:||Frank M. Booth|
|Specialty Contractors:||J.W. McClenahan Co|
|Project Cost:||$435.6 Million|
|Construction Duration:||40 Months|