Re-entering politics after a 13-year break, Epp was easily elected to a third term as mayor of Waterloo in November 2003, receiving double the number of votes cast for incumbent Lynne Woolstencroft. During his term, he helped oversee the continuing redevelopment of Waterloo Square, initiated by Mayor Joan McKinnon (1997–2000) and a multimillion-dollar library/YMCA project on University of Waterloo lands on the west side of the city.
Re-entering politics after a 13-year absence, Epp was easily elected to a third term as mayor of Waterloo in November 2003, receiving double the number of votes cast for incumbent Lynne Woolstencroft. During his term, he assisted in overseeing the ongoing redevelopment of Waterloo Square, initiated by Mayor Joan McKinnon (1997–2000) and a multimillion-dollar library/YMCA project on University of Waterloo lands on the west side of the city.