The company says the move is part of an effort to streamline operations. As part of that streamlining, Koll will close its San Diego County office, which is at 4275 Executive Square in La Jolla, at the end of this year.

Parker, formerly senior vice president in Northern California, will now oversee all operations in California, according to Steve Van Amburgh, president and chief executive officer of Koll, who said he has been working toward this realignment of the firm for a year.

The realignment consolidates three regional offices in California into two. Its Southern California office at 1901 Main St. in Irvine is in the company's recently completed project at Main Street and MacArthur Boulevard, where other tenants include Alliance Bank, AON Insurance, BNC Mortgage, Salomon Smith Barney and G.E. Capital.

The company's Northern California offices will remain in Danville at 4125 Blackhawk Plaza Circle. Parker will maintain offices in both Irvine and Danville.

Since 1994, Parker has been directly responsible for acquisition, development, financing, construction and design, leasing and disposition for office and industrial projects throughout California that have an aggregate value of more than $300 million. While at Koll Development, he has directly overseen major transactions involving Airborne Express, BNC Mortgage, ConAgra, Federal Express, Hitachi, and the San Jose Mercury News. He has executed acquisitions and developments in partnership with institutional capital sources including Invesco, MetLife, NorthStar Capital Partners and The Prudential.

In addition to the two California offices, Koll Development has offices in Dallas, Detroit, Colorado Springs, and Phoenix.