Geography of Cardiff Penylan, Plasnewydd, Gabalfa, Roath, Cathays, Adamsdown and Splott ward on the north and east of the city centre, and Butetown, Grangetown, Riverside and Canton to the south and west. The inner-city areas to the south of the A4161 road (known as the "Southern Arc") are, with the exception of Cardiff Bay, some of the poorest districts of Wales with low levels of economic activity. On the other hand, Gabalfa, Plasnewydd and Cathays north of the 'arc' have very large student populations, and Pontcanna (situated north of Riverside and alongside Canton) is a favourite for students and young professionals. Penylan, which
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