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, Cardiff and numerous playing fields. Fairwater is the historic name of one of the canons' stalls at nearby Llandaff Cathedral. Fairwater has two secondary schools. The larger of the two, with over a thousand pupils, is the Welsh-medium Ysgol Gyfun Gymraeg Plasmawr. The other is Cantonian High School, which has nearly 700 pupils. The building in which Plasmawr stands was originally opened in 1959 as Waterhall Secondary Modern School. Pupils at the school included Martyn Woodroffe an Olympic swimming Silver Medalist in 1968 Summer Olympics in Mexico. It is on the grounds of old Cantonian lower school, but in recent times