One Sansome is owned in a joint venture between​ Barker Pacific Group​ and​ PGIM Real Estate,​ and is professionally managed by Barker Pacific Group. ​ Since its acquisition in 2010, the ownership has invested, and continues to invest, millions of dollars in capital improvements to the building. ​ An extensive redevelopment program is currently underway at One Sansome, which will further enhance the amenities available to tenants of the building as well as reaffirm the property’s position as a premier Financial District address. ​ Improvements that have been completed or are currently planned or in progress include: a new tenant lounge and conference facility; potential food and drink vendor with Conservatory seating and direct access to the tenant lounge; lobby renovation; elevator modernization and updated card reader system; remodeled, highly secure BART/Muni entry; and glass enclosure of the Conservatory entries.