 The translation of its names means the head of four roads.Penpedairheol is frequently known as Cascade.Penpedairheol is split up into Dyffryn Park (most houses on this estate being built in the 1970s), Old Cascade, Forest Park, Bryn Siriol (homes on this estate being built in the 1990s), Westbury (homes on this estate being built in the 2000s), New Roman Gate housing estate (homes on this estate being built 2009/2010), and Glyn-Gaer (known as 'White City'), which is the location of Glyn-Gaer Primary School.