Havens Elementary School – Ellen Driscoll Playhouse

Complete seismic upgrade and interior remodel of an existing playhouse. Scope included the protection of existing historic finishes, additional structural wood framing and concrete foundation for seismic improvements, new roof and fire sprinkler system, and a complete overhaul of interior finishes. We self-performed the extensive wood framing improvements, which was key to making the schedule […]

Sutter Health Alta Bates Summit Medical Center Parking Structure

Design and construction of a 393,000 SF cast-in-place parking structure in a congested urban environment. The seven-level facility was built on an existing on-grade parking lot in the heart of an operating hospital campus. A multi-story hospital was also being built concurrently on-site. Careful coordination with Sutter Health services and adjacent contractors was required. The […]

Santana Row Parcel 3B Parking Structure Expansion

Design and construction of a major addition to an existing, operational three-level garage at a mixed use property. The 290,000 SF cast-in-place parking structure expansion provides an additional 860 stalls and increases the total structure to 713,500 SF. The project was located in a dense residential and commercial district on a major thoroughfare. Overaa scheduled […]

University of California, Berkeley – Underhill Parking & Athletic Field

Design and construction of a 380,000 SF pre-cast hybrid parking facility featuring a roof-level recreation field. The structure fits in seamlessly with and acts as a social hub for the adjacent student housing and private apartments. The four parking levels are either partially or completely below grade. As the site slopes downward, the facility emerges […]

Alameda Civic Center Parking Structure

Design and construction of a six-level, 350 stall parking garage. The new facility features two elevators, two stair towers, and an exterior skin comprised of plaster/metal/concrete/foam shapes/CMU. It is adjacent to a historic theatre built in 1932 that Overaa restored, as well as a new cineplex.

Pleasant Hill BART Garage Expansion

Design and construction of a cast-in-place expansion to an existing parking structure. In addition to developing a design that addressed massing sensitivities to the adjacent residential areas, Overaa developed a two-phased approach that allowed the public to park in the existing structure during construction. The new 525,500 SF, nine-level (1-below grade) parking structure includes three […]

Westlake Shopping Center Parking Structure

Design and construction of 204,670 SF cast-in-place parking structure in a congested retail site surrounded by a residential community. We held regularly scheduled site planning meetings with the owner to ensure pedestrian access to all retail destination points during construction of the six-level, 640 stall facility. Overaa self-performed structural excavation, layout, foundations, slab-on-grade, and vertical […]

Kaiser South Sacramento Parking Structure

Design and construction of a 285,000 SF precast hybrid parking structure built on a fully operational hospital campus. The five-level, 886-stall facility features an architectural façade composed of multiple materials. The structural skeleton is pre-cast column and beams with cast-in-place decks. Structural skeleton was installed in one mobilization, each piece flown in via crane. Overaa […]

Roseville Galleria Cliff Deck Parking

Design and construction of a 432,290 SF hybrid precast parking structure. The new five-level facility was engineered to accommodate a future sixth-level and includes a bridge connector to the adjacent mall. The 1,382 stall structure features different colored architectural pre-cast concrete panels, as well as architectural wire mesh and green screen systems. Overaa completed this […]

Catholic Healthcare West Sequoia Hospital Parking Garage

Design and construction of a 231,000 SF cast-in-place garage adjacent to a concurrent hospital expansion. The five-level, 670 stall facility features a compressed pallet of materials and colors for an overall architecture consistent with the existing hospital campus and adjacent residential properties. A combination of perforated precast panels and a stainless steel screen limit light […]