Chappell wrote the play
The Banana Box, which was given a staged reading at the
Hampstead Theatre Club in 1970. A production at the
Phoenix Theatre in Leicester in 1971, with
Wilfrid Brambell in the role of the landlord, and was later produced in the West End in 1973, with
Leonard Rossiter now in the role.
The Banana Box had a brief run at the Hudson Guild Theater in New York in 1979. A film version of
Rising Damp was released in 1980 and won several
Evening Standard British Film Awards, although he admitted the screenplay was based on television scripts. Chappell's earliest sitcom was
The Squirrels (1974–77), an office comedy which ran for three series. Chappell wrote only half of the scripts for the series, these were later remade as
Fiddlers Three (1991). Chappell married Muriel Elizabeth Taylor in 1959; the couple had two children. ==Work==