Quote from Gwynedd Archaeological Trust report no 1473: 'Geophysical Survey of Cenwerthyd Road, Bontnewydd, Gwynedd' -
'The nucleus of the village is the early nineteenth-century stone bridge over the Afon Gwyrfai and the Newborough Arms public house nearby (SH48315989), established pre-1815, a building which retains some polite architectural features. Later buildings include a late nineteenth century brick-built terrace alongside the road, an interesting mill complex, Capel Siloam, a `German-church' Calvinistic Methodist chapel dating from 1866 (SH48315993), and a local design of mid-twentieth century prefabricated house, apparently built on a timber frame with a slate roof, as well as more recent social housing and suburban estates as Caernarfon over spill.'
RCAHMW, 16th January 2020