Editing Colwinston (section)

===20th century===
The population of the village began to grow away from its agricultural origins, with some emigration to the South Wales coalfields by those seeking industrial employment, whilst the need for intensive labour on farms was reduced by machinery and the village population declined. Some of the original houses fell into disrepair as these population movements took place.

Colonel Hubert Cecil Prichard came to live at Pwllywrach after the First World War. His son Hubert de Burgh Prichard famously married [[Rosalind Hicks]], the only daughter of [[Agatha Christie]], their son [[Mathew Prichard]] being given the proceeds from the royalties of ''[[The Mousetrap]]''. He subsequently used the substantial sums from the play to establish the Colwinston Charitable Trust in 1995.<ref>{{cite web|url=https://colwinston.org.uk/|title=Colwinston Charitable Trust|website=Colwinston Charitable Trust|access-date=28 May 2018}}</ref>

Gradually ‘modern’ features eventually found their way to the village, including mains water in 1935, and electricity and telephone (in the form of a public kiosk) from 1946 onwards. A new water main was laid from the A48 in 1972 and a new sewage scheme laid in 1973.  Beech Park was built in the 1960s with other small developments following. The smaller, mostly tenanted, farms became unviable in the latter part of the 20th century. The remaining farm buildings between Church Farm and Colwinston House (built originally as a Dower House for Pwllywrach) were gradually sold as residential houses, with the barns and brickyards between the farmhouses also being sold off for development. The Pwllyrwrach estate created a single large farm based at Pwllyrwrach Farm, concentrating on sheep and beef cattle farming (rather than the dairy farming which had previously been predominant.<ref>{{cite book|author=Chris Hawker|title=Colwinston: a historical journey|publisher=Cowbridge History Society|year=2018|isbn=9781999687403}} pp 42–43.</ref>)