Located on the north end of the same South Lake Union block where it previously developed two prior buildings, Vulcan's Block 55 consists of a new 10-story 60/40 lab + research/office building with a mechanical penthouse and four levels of subterranean parking. Special features include an all-electric state-of-the-art high efficiency HVAC system [+15% above code] that is designed for intensive laboratory use, a highly efficient envelope, and provisioning for a 65 KW PV array.