The U Street Corridor is DC's most concentrated stretch of nightlife — a walkable strip from about 12th to 15th Street NW where you can move between clubs, bars, and music venues without needing a rideshare. It's historically the heart of DC's Black cultural scene and still carries that legacy in its music and culture.
Flash is the U Street cornerstone for electronic music — Thursday through Sunday with programming that draws from deep house to drum & bass. Heaven and Hell sits right on U Street with two floors offering completely different vibes — hip-hop upstairs, more alternative programming downstairs.
U Street has its own Metro stop (Green/Yellow Line) — the best late-night option since the Metro runs until 3am on Friday and Saturday nights. Parking is difficult and expensive on weekend nights; rideshare or Metro is the sensible choice. The main strip is walkable enough that you can easily move between several venues in a single night.