A Los Angeles-based private buyer paid $20.6 mil for a 51.7k sf ($398/sf) office building in San Diego’s Sorrento Mesa area. The property was sold by real estate investment management firm Buchanan Street Partners.

Buchanan Street Partners based in Newport Beach sold the 51,690 square-foot building at 6059 Cornerstone Court West to a private investor who was not identified.

Buchanan Street Partners, a Newport Beach, California-based real estate investment management firm, has completed the disposition of a 51,690-square-foot office building at 6059 Cornerstone Court West in San Diego, California for $20.6 million, or $398 per square foot.