The earliest evidence of habitation in the area is the nearby Ogof y Pebyll or Ogof Coed-y-Mwstwr ), which is a scheduled monument and appears to have been inhabited during Neolithic or Bronze Age periods. Worked flint flakes have been found, along with the teeth of numerous mammals of many different species.
Spelling, pronunciation and etymology
In Welsh, the correct spelling is Pen-coed. Often, in English, spellings now superseded in the Welsh language are used as the official name. Thus "Pencoed", without a hyphen, is usually used in English, but is considered misleading in Welsh as it suggests that "pen" bears the stress rather than "coed". The spelling "Pencoed", when used in Welsh, is considered to be, strictly speaking, incorrect. The basis of the name is "pen y coed". The linking definite article is often lost in place names, hence places called Pen-y-coed as well as the shorter Pen-coed. There are various pronunciations of the name to be heard. The standard Welsh pronunciation is. The diphthong 'oe' in a monosyllable is generally reduced to a long vowel 'o' in South Wales, and so the pronunciation of the town has traditionally been. This local form is spelt as "Pen-côd" in texts written in the Gwentian dialect. One pronunciation used in English is an approximation of the standard Welsh form but with stress shift . A poor pronunciation in English heard from outsiders and often on the English media is a spelling pronunciation as if the name were in English orthography – . Local signage shows the use of the two forms in English contexts but also in Welsh contexts, with Pencoed predominating. Thus one sees Pencoed Primary School in English, and Ysgol Gynradd Pencoed in Welsh, on the sign onthe school façade. The library sign reads Pencoed Library and Llyfrgell Pencoed. The railway station sign has Pencoed. Roadsigns show Pencoed Cemetery and Mynwent Pencoed. However, other signs are Pen-coed Technology Park and Parc Technoleg Pen-coed, and the roadsign on Heol Pen-y-bont / Penybont Road at the entrance to the village half a mile from the centre shows "Pen-coed ½", whereas a sign just across the road indicating the entrance to the village has Pencoed.
Present town
Pencoed as a town developed in the late 19th century, around the coal mining industry; the coal mines have now closed. The town is in the Ewenny Valley and is divided by the M4 motorway near Junction 35, although almost all of the town lies to the north of the M4. About two miles north of the town, the upland relief of the South Wales Valleys starts. To the south are the rolling countryside of the Vale of Glamorgan and the rugged north coast of the Bristol Channel. The town consists of three distinct areas, which were once four small hamlets. To the north is Penprysg, which lies at the end of the low ridge of Cefn Hirgoed. To the west is Hendre which rises gently from the railway line in the centre of the town towards the common land at Ystadwaun, on older maps as Ystad y Waun and Gwastadwaun. The central and eastern part of the town, which lies on the valley floor near the railway, consists of Pencoed itself and Felindre. There are numerous streams rising and running through the town, and two main rivers, the Ewenni Fawr and the Ewenni Fach. At the centre of the town, close to the station, is the war memorial, the shopping centre and the local Community Hall. The town is well provided with sports facilities, schools, pubs and clubs. A new development, Earlswood Parc, was announced in 2002 and now has been completed, incorporating various Westbury built homes and Bocam business park. The current mayor is Councillor Bridie Sedgebeer. Pencoed hosted the National Eisteddfod in 1998. The Raspberry Pi basic computer is manufactured at the Sony Technology Centre in Pencoed, which produces 44,000 every week.
