20 Mass Exterior View

Thoughtful design from top to bottom

Explore the stacking plan to learn more about each opportunity.

Stacking Plan - Penthouse - Floor 11Stacking Plan - Office - Floor 07-10Stacking Plan - Hotel - Floor 02-06Stacking Plan - Retail - Floor 01Stacking Plan - Building Overview
Stacking Plan - Penthouse - Floor 11Stacking Plan - Office - Floor 07-10Stacking Plan - Hotel - Floor 02-06Stacking Plan - Retail - Floor 01Stacking Plan - Building Overview
Exclusive Amenity Penthouse
11th Floor | 14,500 SF
Multi-Floor Office with Urban Views
Now Pre-leasing | 183,515 RSF AVailable
Luxury Royal Sonesta Hotel
271 Locally Inspired Guest Rooms
Experiential Retail
1st floor | 13,832 RSF Available

Amenities that foster a compelling culture

A prominent anchor in Capitol Hill's distinguished core, 20 Mass is an experiential, urban destination for what's next in DC.

Adjacent to DC destinations that keep you moving

Powerfully positioned at one of DC’s most walkable intersections, reach upscale dining, world-renowned attractions, iconic national landmarks and inspiring cultural institutions from Massachusetts Avenue and North Capitol Street.

Union Station Icon

Union Station

3 min walk

US Capitol Icon

US Capitol

10 min walk

Supreme Court Icon

Supreme court

10 min walk

Ronald Reagan National Icon

Ronald Reagan National

8 min drive