Cathays Lord Windsor) on 12 November 1766, he inherited great further lands including in Cathays to the north of his existing estate which he had partially had developed. He then bought other properties and farms, to the north and east, including what became Cathays Park. There he built Cathays House at a cost of £40,000 and at further cost landscaped Cathays Park. After his son took over the title he preferred to live in Cardiff Castle so demolished the house in 1815, and turned Cathays Park into purely enclosed parkland used for grazing. Following the 2nd Marquis' development of Cardiff Docks,
Fairwater, Double Bay the continuation of the historical use of the house with principal and staff quarters. Of high integrity as a large family residence which at its core is John Horbury Hunt's simple, but avant-garde design, embellished by the Manson and Pickering alterations. Land title is in one lot, and closely approximates original leasehold title issued in 1863, with additions made in 1924 and 1936. Land title is inclusive of Seven Shillings Beach. Listing should exclude swimming pool and associated reinforced concrete wall. As at 8 June 2006, "Fairwater", is a large domestic residence constructed in 1882 with additions made in and