Duncan is the Conservative Member of West Sussex County Council for the Tilgate and Furnace Green Electoral Division.
He has lived in Furnace Green since 1996 and also represents Furnace Green on Crawley Borough Council.
Duncan is currently the Chairman of the PLanning Committee and a Member Development Champion. He is the Deputy Cabinet member for Active Communities, Emergency Services, Drug and Alcohol Action.
Duncan is also an Adviser to the Deputy Leader with portfolio for Communities, Environment and Enterprise.
East Crawley County Local Committee
Duncan represents the County Council on the following organisations
Early Years Development and Childcare Partnership
Crawley Town Centre Forum