John Muir Health Expands Lease At Bishop Ranch Medical Campus With Sunset Development Company

The asset involved in this transaction is an office property located at 12677 Alcosta Boulevard in the San Ramon market. The space covers approximately 100,000 square feet and is owned by the Sunset Development Company.

Summary of transaction details:

• Property Type: Office
• Transaction Amount: Not specified
• Landlord: Sunset Development Company
• Tenant: Michael S. Thomas - John Muir Health
• Brokers: Trent Barmby & Kevin Mechelke - JLL

This lease arrangement reflects John Muir Health's expansion strategy as the organization nearly doubled its footprint to accommodate additional services and staffing. The new space is projected to open in late 2027, alongside a 10-year lease extension for the Pleasanton Outpatient Center, consolidating operations in the San Ramon area along the I-680 corridor.