Underhill at Holme, West Yorkshire, England, is a modern house designed by Arthur Quarmby in 1969 and built from 1973 to 1975.
[1] Underhill has been Grade II listed on the National Heritage List for England since July 2017.
[2] Underhill was the first earth-sheltered house to have been built in Britain in modern times.
Historic England described Underhill as "representing a significant milestone in the development of ecological and sustainable architecture".
[2] The house features a 36-foot (11 m) hourglass-shaped swimming pool centrally located in the main room, with a large octagonal pyramid conservatory-style skylight window in the ceiling above the centre of one of its circular ends.