In June 2004, however, he announced that he would be retiring from politics at the next election, saying that the birth of his daughter meant that he wanted to spend more time at home.

In August 2006, Ewen-Street joined the National Party, saying his passion for the environment hasn't changed, but he believes more progress can be made through a major party such as National.

[3] Ewen-Street was in a relationship with Sue Grey, a Nelson lawyer.

[4] Ewen-Street laid a police complaint when Grey was fired from the Department of Conservation, alleging judicial misconduct.

[5] In 2003 Ewen-Street divorced Margaret O'Brien, his wife of 16 years, and had a daughter with Grey named Ysabella; Grey had two children from a previous relationship.