 At the 1945 general election, Stevens fought Sheffield Park as the Conservative Party candidate; the seat proved safe for Labour.For the next general election in 1950, Stevens was adopted as Conservative candidate for Portsmouth Langstone, a new constituency consisting of some wealthy areas around Langstone Harbour (Havant, Waterlooville) as well as the mostly public housing of Paulsgrove.Although the election result was thought in doubt, Stevens was elected with a majority of over 11,000.