Heritage Open Day: Kingswood House is a grade II listed 19th century baronial mansion in south London. It was the home of the creator of Bovril. Free guided tours will be run by Friends of Kingswood House and HH Kingswood Ltd on Sunday 12 and 20 September 2026. Kingswood House is a stone-faced baronial castle currently used as a cultural and community space. It's history dates back to 1811 and was originally the home of an eminent lawyer, William Vizard. The House was extensively rebuilt by Henry Vaughan Lanchester, architect of Methodist Central Hall on Parliament Square, for the inventor of Bovril, John Lawson Johnston. A Russian prince and aviator lived there and it was used as a Canadian military hospital in World War 1.