CONCORD, CA-Swift Realty Partners, an investment firm headed by former Equity Office Properties exec Christopher Peatross, has acquired the four-building, 1.1-million-square-foot Bank of America Technology Center here, a source tells GlobeSt.com. The sale, terms of which were undisclosed, is believed to be the largest single office property sold in the San Francisco Bay area in the last three or four years. The property includes buildings of 380,000, 310,000, 210,000 and 200,000 square feet, with Bank of America occupying all of them except the 200,000-square-foot building, which is vacant.

The complex of buildings is known as Concord Technology Center, according to press reports from several years ago that said BofA was in the market to sell the property. Those reports said that BofA was looking to execute a sale-leaseback of the buildings.

GlobeSt.com’s source noted that Swift already owns a building across the street from the BofA tech center, which was 43% leased when Swift bought it seven months ago and quickly filling up (currently at 78%) . The lease-up demonstrates the resilience and demand in the Downtown Concord office market, according to the source, who added that the area is adjacent to affordable housing and other amenities that corporations look for in office locations.