Twitter operated out of a Boulder office on Walnut St. for years, mostly housing the employees of Gnip, a company that sold Twitter data to enterprise customers which Twitter had acquired.

The Walnut office consisted of the top two floors, 3 and 4.

Over time the office morphed from being "Gnip" to being a genuine Twitter office, with folks from all kinds of teams working out of the office including Timelines, DMs, Health, and Tweets. Most of the teams were geo-distributed.

It grew fast.

By early 2019 people started cramming extra folks into the desks ("desk buddies"). People who were often in meetings (product mostly) were asked to hotdesk.

To alleviate this, Twitter leased the basement of the building, as floors 1 and 2 were leased to other companies. Construction on the basement location was pretty secretive, with the REW (Real Estate and Workplace) team wanting to unveil the new space in a grand opening when complete.

August 2019 the space opened and... everyone hated it.