Johnny McCarthy: NI21 win first seat in Lisburn North
24 May 2014 Last updated at 17:06 BST
Johnny McCarthy has become NI21's first councillor to be elected.
Mr McCarthy is likely to be the only member of the party to be elected across all the councils in Northern Ireland.
The party has been in turmoil since a very public falling out between its party executive.
Earlier on Saturday, NI21's European candidate Tina McKenzie confirmed she was quitting politics.