Tyddyn Iolyn is believed to date back to the 16th century and research so far has produced the names of the occupants back to 1687 from the land tax records and materials researched at the archives in Caernarfon.
Situated in the village of Pentrefelin (mill village), the farmhouse is in the parish of the old church (yr hen eglwys) of Ynyscynhaearn. Although rebuilt in the 18th century, the church is a pleasant ¾ mile walk along a farm track towards the sea from the main road in Pentrefelin. The church is now under the auspices of CADW (The Castles of Wales) and The Friends of Friendless Churches who host open days and occasional concerts during the summer. Tyddyn Iolyn boasts its own pew on the sloping floor of the transept, and the grave of the famous harpist and musician David of the White Rock' or Daffyd y Garreg, can be seen in the churchyard, together with those of some of our predecessors here at Tyddyn Iolyn. It is possible to obtain a key to have a look at the inside of the building.
The stonework at Tyddyn Iolyn is particularly interesting as very large stones were used in construction, and there are exposed wooden pegged oak beams, a huge inglenook fireplace and, what is possibly an original priest hole. The cottages are converted from the old barn, bakehouse, stable, hayloft and granary. There is also a piggery building that is now used for storing your bikes!
The old shrub walled garden has been improved over the years but dates back to the original farmhouse. You are free to peruse the vegetables, orchard and shrubberies over a morning coffee before starting your day in the heart of North Wales.