In 1951–52, the club entered the Northern Suburban Intermediate League, winning Division One.
In 1971, Southgate joined the reserve section of the Metropolitan–London League, winning Division Two in their first season.
In 1987, the club entered the FA Vase for the first time, reaching the third round, before being knocked out by Northampton Spencer after a replay.
The club dissolved in 1997, after finishing bottom of the Middlesex County League Premier Division.
[1] For the majority of the club's history, Southgate played at Tottenhall Sports Ground in Palmers Green.