Onyx on First is a high-rise building located in the United States capital of Washington, D.C. The 260 unit building was developed by the Canyon-Johnson Urban Fund. Demolition of the original buildings in the location began in September 2006 and construction began on October 31, 2006. It was completed in August 2008 and move-in began October 2009.
The building rises , with 14 stories and 4 below-grade parking levels. The building is an apartment complex with 266 units.