Mark Justin - Councillor for Nine Elms | Reform Watch

Profile and accountability tracker for Mark Justin, Councillor for Nine Elms. Reform UK.

Role: Councillor for Nine Elms

Party: Reform UK

Mark Justin is a councillor for Nine Elms ward on Wandsworth Council, elected as a Conservative in 2022. He joined Reform UK in August 2025, citing internal Conservative politics; the local Conservatives said he had been deselected. In January 2026 the council removed him from two committee places.