Novato, California-headquartered Bank of Marin, has opened a loan production office in Santa Rosa which will subsequently become a full service branch, appointing Chris Rosell to provide private banking services from the new base.

Rosell, vice president and private banker for Sonoma County, joined the bank in 2009. He has been an active business lender in Sonoma County and was also with the former Sonoma National Bank, the firm said in a statement.

The new Santa Rosa office, which is scheduled to be in full service by April of next year brings Bank of Marin’s network of offices in California to 15. The expansion into Santa Rosa was described by the firm as an important part of the firm’s growth strategy.