A private investor has acquired a 29-unit apartment building in Northridge for $6.95 million, or $239,655 per unit. According to CoStar Group, Tamkin Enterprises, represented by Steve Tamkin, bought the University Gardens apartment building at 8762 Etiwanda Ave. from Redondo Beach real estate entity Cosmo Investments. Marcus & Millichap’s Filip Niculete and Josh Hill in the Encino office represented Tamkin, while Marcus & Millichap’s El Segundo-based team of Paul Darrow, Gregory Harris, Kevin Green and Joe Grabiec represented Cosmo. Located in housing-challenged Northridge, the multifamily dwellings stand about a mile away from the campus of California State University — Northridge.