Home Commercial Facebook Expands its Seattle Footprint With New 150,000 Square Foot Westlake Office Commercial Facebook Expands its Seattle Footprint With New 150,000 Square Foot Westlake Office March 13, 2018 Facebook Twitter WhatsApp Linkedin ReddIt Email Image courtesy of 1101westlake.com By Jack Stubbs Facebook today showcased its new 150,000 square foot Westlake Office in South Lake UnThank you for your interest in The Registry. You must Subscribe or Log In to read the rest of this content.