Stuart has been a councillor for Crouch Ward since 2002. He currently sits on the Licensing Committee. If you are a Crouch resident and would like to contact Stuart, please email stuart.allen@members.basildon.gov.uk.

Previously, he represented Fryerns Central from 1992 to 1996 and Laindon from 2000 to 2002.

Stuart holds regular resident surgeries on the first Saturday of the month between 9:30am and 10:30am at Noak Bridge Village Hall, Coppice Lane, and the third Saturday of the month between 9:00am and 10:00am at Steepleview Hall, Willowfield (off Osier Drive), Laindon SS15 4EQ.