1000 Connecticut Avenue

This LEED Platinum office complex is the result of a collaboration between the owners of three adjacent buildings, who decided to combine their lots.

Occupying an important corner in downtown Washington, the site connects a park and two commercial frontages. To complement the stone, masonry, and precast concrete that dominate Connecticut Avenue, the skin of the new building is folded into reflective pleats of glass and stainless steel, giving the facade dimension and character and adding light and shadow to the street wall. In contrast, the K Street facade is composed primarily of granite and glass, with formal elements that bring its scale back to that of its neighbors. From a distance the building can be read as separate yet interrelated structures, each unique yet at home within the existing city fabric.

Show Facts

At K Street and Connecticut Avenue, its prominent corner focused towards Farragut Square


535,000 ft2 / 50,000 m2


12 floors above grade comprising 11 office floors (33,600 s/f per typical floor) over street level retail and restaurants. 4 levels below grade with rentable space and parking for 253 cars.


Potomac Investment Properties, Inc.

PCF&P Services

Architecture, exterior envelope, interior design of public spaces


LEED Platinum

lead designers

James Ingo Freed
Roy G. Barris


Green Good Design Award
Chicago Athenaeum / European Centre, 2014

Project of the Year Core and Shell
U.S. Green Building Council, National Capital Region, 2012

Excellence in Construction
Associated Builders and Contractors: Metropolitan Washington and Virginia Chapters, 2012

Craftsmanship Award: Exterior Stone
Washington Building Congress, 2013

Craftsmanship Award: Windows and Storefronts
Washington Building Congress, 2013

Craftsmanship Award: Underpinning, Foundations and Excavations
Washington Building Congress, 2011

A green roof reduces the heat-island effect, absorbs rainwater, provides insulation, and creates a wildlife habitat, while low-E glass, natural daylighting, and fixed shading devices increase energy efficiency. These and other sustainable strategies earned the building LEED Platinum certification and set a standard not only for the neighborhood but for the District as a whole.
Project Credits

Associate Architect: WDG Architecture, PLLC, Washington D.C.; Structural: SK&A Structural Engineers, PLLC, Washington D.C.; Mechanical / Electrical / Plumbing: Girard Engineering, PC, Falls Church, Virginia; Sustainable Design: SD Keppler & Associates, LLC, Rockville, Maryland; Images: Alan Karchmer