https://www.siliconvalley.com/2023/12/22/concord-bay-area-office-buy-sell-build-develop-real-estate-economy/

CONCORD — A big office complex in Concord has been bought in a deal that suggests property values have nosedived for Bay Area offices in the wake of the coronavirus-spawned business lockdowns.

Concord Corporate Centre has been bought for $20 million by an affiliate of Sierra Pacific Properties, a real estate firm controlled by the Seeno family, according to documents filed on Dec. 14 with the Contra Costa County Recorder’s Office.