[1] Designed by Henry Edward Kendall Jr. (1805–1885)[1][2] and built, at a cost of £30,000,[3][4] in pink and grey granite with a bronze door,[1] it was commissioned in the 1850s by the 2nd Earl of Kilmorey (1787–1880) and contains the bodies of the Earl and his mistress, Priscilla Anne Hoste (1823–1854).

[3] Originally erected in Brompton Cemetery, the mausoleum was moved first to Woburn Park near Weybridge in about 1862, and from there to its present location in about 1868.

[1] In 1936 the grounds of the mausoleum were passed on in perpetuity to Hounslow Borough Council on condition that access would be maintained.

[5] The mausoleum, including the enclosure wall, railings and gate, are Grade II* listed[1] and are on Historic England's At Risk Register.

[6] The surrounding cast iron railings, which in contrast to the building's Egyptian revival theme, are in a Gothic revival style,[7] are in a poor condition and discussions on sources of grant funding are underway.