In 1928 the Urban District grew to take in the westerly strip parish of Cheam (which was 4% larger) from Epsom Rural District and was thus renamed Sutton and Cheam Urban District. Both occupy and are centred on spring line settlements next to the North Downs. The new body took in an extra and 1840 people from 1933 when a county review order abolished Epsom Rural District, specifically drawing on parts of Banstead and Cuddington civil parishes. At the same time about 212 versus 235 people's homes moved council by an imposed land exchange with Carshalton Urban District, seeing a net gain of 8 acres; three simultaneous changes moved no homes but saw a net gain of 16 acres. The council successfully petitioned for a charter of incorporation so it became a municipal borough in 1934. Charter Day was celebrated on 12 September 1934 with local festivities, including a quarter peal on the bells of All Saints, Benhilton.