Thamesmead F.C. was formed in 1969 as a community team for local youngsters. The club merged with Southlake FC in 1973, and by 1979 were fielding a Saturday team, playing on park pitches at Crossways.
In 1980 the club entered the London Spartan League at the Intermediate Division Three level. They dominated the intermediate divisions in the early 1980s, but were unable to gain promotion to the Senior Division until they gained senior status. At around this time, they played matches at the Meridian Sports Ground in Charlton.
In 1985, the club changed its name to Thamesmead Town FC, and later that year they relocated to Bayliss Avenue. The club finally gained senior status during the summer of 1987 and were accepted into the London Spartan League Premier Division for the 1987–88 season.
The club joined the Kent League in June 1990, where they remained until 2008, generally finishing amongst the top half dozen in the table.
In 2002–03, they missed the runner-up spot on goal difference, despite having more points than Cray Wanderers, who won the League! This was due to placings being decided on points per game after Faversham Town failed to complete the season.
In 2007–08, Thamesmead Town were champions of the Kent League, winning the title on the last day of the season. The title ensured promotion to the Isthmian League, where they were elected to play in Division One North in 2008–09.
In 2012-13, Thamesmead finished 3rd in this division. They beat Witham Town 3-2 in the play-off semi-final and Maldon & Tiptree on penalties in the final to gain promotion to the Isthmian Premier Division for the first time in their history.
The club crest is a traditional shield in design, white in background with green writing and logo.
The three wavy lines at the top denote the River Thames, which is just 200 yards from the clubs Bayliss Avenue ground. Below this are two cannons, in between which is the clubs full name.
The cannons derive from the town's previous use as a military testing ground for the local artillery munitions works in neighbouring Woolwich.
Before the building of the town of Thamesmead in the 1960s, the land consisted primarily of marshes where, since the 18th century, shots would be fired to test the accuracy and range of heavy artillery designed and built at the munitions works.
Until 2009/10, the crest prominently displayed the club’s initials, T.T.F.C. which had been an original part of the brest design. This has now been removed in a modified version of the badge, published in summer 2009.
London Junior Cup:
Runners-up (1): 1983-84
Best league position: 22nd in Isthmian League Premier Division, 2013/14
Best FA Cup performance: 2nd qualifying round, 1998–99, 2003–04, 2004–05; 2008–09 and 2013/14
Best FA Vase performance: 5th round, 1995–96
Record victory: 10-3 V Sporting Bengal, 26 August 2006