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, Torfaen use of cars had to be accommodated in the layout of further housing estates, and Redfern adopted the Radburn system, used most rigidly in Fairwater (built between 1963 and 1966). The remains of Llanderfel Chapel, a medieval chapel important as a stopping point on a pilgrims' route to Penrhys, are in Fairwater. The pilgrim route is now part of the modern long distance Cistercian Way footpath. The remains are a scheduled monument. Near the site of the chapel is Llanderfel Farm, a 16th-17th century Grade II listed building. Also nearby is Ty'r Ywen Farmhouse and barn which are both 17th