Mount Vernon Triangle has a collection of 23 contributing buildings within the Mount Vernon Triangle Historic District, including one landmarked building. The DC Historic Preservation Office maintains the list of buildings within the historic district, and all buildings within the Historic District must go through design review.

The Historic Preservation Office's website is http://planning.dc.gov/DC/Planning/Historic+Preservation

The Historic Preservation Office's website contains a number of resources, such as educational materials, including design guidelines for historic commercial buildings. http://planning.dc.gov/DC/Planning/...Historic+Commercial+Buildings

MVTCID also partnered with the DC Preservation League to research the history of Mount Vernon Triangle. For a copy of the pdf, click here.