

Living at Annex on 12th
SW Washington DC
The Building
Welcome to the Vault: Our Resident Speakeasy
This modern speakeasy pays tribute to the building's origins with striking architectural and design details like the original ceiling-spanning, barrel-vaulted skylight.
LEED at Annex on 12th
Annex is proud to be LEED certified.
One-of-a-Kind Luxury Amenities
Explore a truly original and considered lineup of building amenities that feel like extensions of a boutique hotel.
DC's Cotton Annex Building: From Past to Present
Explore the history and architecture of the Cotton Annex building, from its 1930s origins with the USDA to its new era with Annex on 12th.