From M4 Junction 32 travel North on A470 to Nantgarw, turn right onto A468 travel towards Caerphilly, at third roundabout turn left onto A469 head towards Bargoed, after several miles you will pass a Tescos on Left and travel under a railway viaduct, a mile further on you will see a sign for Tir-Y-Birth, Pengam Part Mart is on your left.