Due to Mong Kok Stadium's renovation, Citizen used the Siu Sai Wan Sports Ground in the 2009–10 season for its home games.

Citizen won the 2010–11 Senior Shield by beating South China in the final after penalty kicks, thus earning the club the right to represent Hong Kong in the 2012 AFC Cup.

To celebrate this victory, the club announced a prize fund of HK$800,000 (approx US$100,000), an iPhone 4 for every player and an end-of-season vacation for the whole team.

[1] The club moved from the remote Siu Sai Wan Sports Ground to the renovated Mong Kok Stadium for the 2011-12 Hong Kong First Division League season.

[2] Citizen is spending an unprecedented HK$400,000 on the team's 12 days pre-season training camp in Vancouver, Canada, during which time the club will play 3 warm-up games.