Porirua City Councillor Mike Duncan has died suddenly, according to Stuff and Porirua News, both reporting on 14 June 2026.

Duncan represented the Onepoto ward — which covers Tītahi Bay and surrounding areas in western Porirua — and held the position continuously since 2016. No cause of death has been publicly confirmed.

Mayor Anita Baker described the news as having "come as a shock to all." Local government deaths in office are rarely expected, and councils typically face the immediate aftermath without formal transition protocols.

Duncan's decade on council coincided with significant change for Porirua: population growth, infrastructure projects, and the strain Three Waters reform placed on smaller councils. The Onepoto ward has specific coastal and community infrastructure issues that depend on continuity of local knowledge. Duncan held that institutional memory.

Under the Local Electoral Act 2001, a council vacancy is triggered when a member dies in office. Porirua City Council must follow a defined process: public notice of the vacancy, followed by a council decision on whether to fill the seat by by-election or appointment. The decision depends on how much of the current electoral term remains. The current triennium runs to October 2025 — with the 2025 local elections having returned members for the 2025–2028 term, the council will assess whether a by-election threshold is met. That determination will come in the days ahead.

Losing an experienced ward member mid-term is more than administrative procedure. The relationships built within committees, the community networks, the informal working knowledge of how a council operates — these do not automatically transfer to whoever fills the vacancy. For a council Porirua's size, the gap is felt straight away.