It had its greatest success in the early 1950s when it won the tier one Oberliga Berlin in 1953, having finished runners-up in the previous two seasons.

SC Union 06 Berlin traces its roots back to the FC Olympia Oberschöneweide, a club formed in 1906.

Union's greatest success however came in the 1923 German football championship where it reached the final but lost 3–0 to Hamburger SV.

[1][2] After a runners-up finish in the Oberliga Berlin in 1950 and qualification to the 1950 German football championship Union was refused permission to travel to Kiel to play Hamburger SV by the Soviet occupation authorities.

Another group of Union players formed BBC Südost, also based in the West, but the latter was disbanded in 1990.

This title earned the club another trip to the German championship where it however finished last in its group with five defeats and one draw, playing against Hamburger SV, VfB Stuttgart and Borussia Dortmund.

[1][2][3] After the Introduction of the Bundesliga in 1963 Union played a season in the tier two Regionalliga Berlin in 1963–64 but came last and was relegated back to the Amateurliga.

Financial reasons led the clubs to grow apart again and a dispute over the stadium Alten Försterei saw 1.

On the field, after its descent to the Kreisliga B, the club recovered, returning to the tier seven Landesliga Berlin in 2014 but being relegated from this level again in 2016.

FC Union played a friendly, with the proceeds from the game going towards the integration of refugees.