For the 2012–13 season, Templeogue entered the National League Division 1 and made their debut on 29 September 2012 against Ulster Elks.

After starting their campaign with three straight defeats, Templeogue bounced back to finish the regular season in third place with an 11–7 record.

[11][12] In 2015–16, Templeogue were undefeated over their first 10 games, but stumbled over their final eight to finish the regular season in third place with a 14–4 record.

In 2017–18, Templeogue reached the National Cup final for the second time in three years, where they defeated UCD Marian 68–62 behind 23 points from MVP Lorcan Murphy.

[17] In 2019–20, Templeogue reached the National Cup final for the third time in five years, where they defeated Éanna 78–68 behind 33 points from MVP Lorcan Murphy.