He later refused a chair in zoology at a South African university because of his commitment to his ancestral home.

His preferred subjects were urban views and outdoor scenes with buildings, animals, and plants, such as the magnolias and orchids he grew at Corsham Court.

[3] Four years after the destruction of the premises of the Bath School of Art in 1942, Methuen offered Corsham Court, which during the war had been first the temporary home of Westonbirt School and then a convalescent hospital for officers, to the new Bath Academy of Art under Clifford Ellis.

[6] He was also elected an Honorary Associate of the Royal Institute of British Architects (Hon ARIBA) in 1947[7] and a fellow of the Society of Antiquaries in 1951.

[8] A species of South African lizard, Lygodactylus methueni, is named in honor of Paul Ayshford Methuen.