The buildings are former warehouses built between 1927 and 1937.They were renovated, seismically upgraded and converted to officein the mid 1980s. The oldest building is a two-story concretebuilding with 140,178 sf that includes underground parking for 67.The building is 68% leased. The remaining 12,000 sf are in anadjoining three-story, wood-frame building that is unoccupied.

An affiliate of Flynn Properties acquired 444 De Haro in 1999for about $23 million. Flynn put it back on the market in 2005 foraround $25 million and in November of that year sold a 70% stake toPage Mill Properties, a DivcoWest-sponsored fund formed in 2001 toinvest in the tech- and dotcom-crash markets with local minoritypartners.

The building's anchor tenant is Avolent, a software firm thatleases 21,000 sf and has been in the building since the late 1990s.Other tenants include Medical Research Institute, which leases10,400 sf, and K2A, a technology firm that leases about 5,000 sf.The largest contiguous availability is about 20,000 sf on thestreet level, facing the future Whole Foods store. Current grossrents at competitive properties in the submarket are be leased atrates in the low-to-mid $30s.