LOS ANGELES-Dr. David Lee's Jamison Properties now owns 12 million sf of office buildings in Los Angeles County, a figure that pushes it past Arden Realty as the largest owner of office space in the county.

CITY OF COMMERCE, CA-A private investor buys the 33,400-sf single-tenant office park from Summit Commercial Properties for just under $6.2 million. The property is 100% leased.

LOS ANGELES-Five partners and two associates from the real estate practice of Pillsbury Winthrop will be leaving the firm to join Piper Rudnick in Century City.

SANTA ANA, CA-The buyer obtains a 10-story, 197,817-sf class A building with 90% occupancy. The sales price is not disclosed, but TIAA-CREF is believed to have paid approximately $40 million.

SANTA BARBARA, CA-The health-care giant reveals that it can ill afford the $1.6 billion to retrofit its California hospitals to meet earthquake standards, so it is selling them and others in four other states.

IRVINE, CA-Developer Hedley-Irvine I plans 73,736 sf of space planned for small businesses, according to GVA Daum, which brokered the property sale setting up the development.

EL SEGUNDO, CA-Los Angeles-based Kearny Real Estate Co. and San Francisco-based Catellus Development Corp. sign a contract with the US Air Force to build a 542,000-sf office campus.

IRVINE, CA-The former top retail broker with Sperry Van Ness takes his Reza Investment Group out on its own, establishing an Irvine headquarters with five other brokers.