Laguna Niguel is part of Irvine-based Opus Bank’s plan to add five offices in California and Washington.

The office in Laguna Niguel is expected to open in the first quarter at 24050 Aliso Creek Road, according to the bank.

The other four new locations are expected in Danville, Long Beach, Del Mar, and Kirkland, Wash.

The plans bring the number of new offices in the works for Opus to 10. The bank also is negotiating for eight more spread over Southern California, the San Francisco Bay Area and the Seattle metropolitan area.

The plans, all told, would give Opus 39 offices.

“We are continuing to strategically expand our network of banking offices in the metropolitan areas up and down the West Coast,” Opus Chief Executive Stephen Gordon said in a statement.

The bank recently completed an acquisition of Everett, Wash.-based Cascade Financial Corp. and its Cascade Bank, a deal that boosted its assets to $2.2 billion.

Opus expects its assets to grow to about $3 billion when a pending acquisition of Fullerton-based RMG Capital Corp. and its savings and loans subsidiary Fullerton Community Bank closes later this year. That deal is expected to bring several more offices for Opus.