Adaptive Biotechnologies is expanding its presence in Seattle with the lease of a 100,000-sf headquarters building in Seattle. The lab and office facility is located in the Lake Union life science district and is being developed by Alexandria Real Estate Equities. Adaptive will occupy the entire structure, which is sited adjacent to its existing facility. Building amenities will include an open-air plaza, a rooftop desk, a fitness center, locker and shower rooms, and direct access to water sports on Lake Union. Construction is expected to reach completion in 2020 with occupancy slated for 2021. Adaptive Biotechnologies is a developer of personalized diagnostics and therapeutics based on reading and translating the genetic code of the adaptive immune system.