[1] The building was designed by architectural firm Smith, Segreti, Tepper, McMahon & Harned and was completed in 1989.

1620 L Street is an example of postmodern architecture, and has a glass and granite facade.

[1] It is composed almost entirely of office space, with 512,000 square feet (48,000 m2) of commercial area; the three basement levels are used as parking space, containing a 126-spot parking garage.

[1] The street level floor is used for commercial retailing.

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