Los Angeles office landlord Arden Realty Inc. is expanding its West Coast role to include the national investment operations of its parent company, Arden announced Tuesday.

Arden, which merged with GE Real Estate in 2006, has until now concentrated in West Coast markets that include northern California, Seattle, Portland, Phoenix and Salt Lake City, where it closed approximately $6 billion in office transactions in the last two years.

The expansion transfers GE Real Estate Americas’ Equity national office investment personnel to Arden. Acquisition directors in the Midwest and East Coast will report to Arden Chief Investment Officer Michael Lynch.

Arden’s corporate headquarters will continue to be in West Los Angeles.

“The national expansion into the Central and Eastern United States is a logical continuation of Arden’s growth strategy and positions them well as they accelerate into the third party investment management business,” said Michael Rowan, President, GE Real Estate, Americas’ Equity, in a statement.