Plasdŵr

Plans were submitted in December 2014 for "Plasdŵr" (meaning "Waterhall" in English) which was to be created on 900 acres (368 hectares) of countryside owned by the Plymouth Estates between the village of St Fagans and existing Cardiff suburbs of Fairwater, Danescourt and Radyr.

[1] The scheme is being marketed by developer Redrow Homes as a "21st century garden city".

[5] Building work started on the first 126 homes on land north of Llantrisant Road at Easter 2017.

The proposal attracted criticism both from proponents and opponents of Welsh language medium education.

The school would have a catchment area including Plasdŵr, Creigiau, St Fagans, Radyr, Morganstown and Fairwater.

Planned location map of Plasdŵr in Cardiff
Farmland next to the Llantrisant Road near Radyr, in 2005
New green space and housing southwest of Llantrisant Road (2023)