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Ty'n Twr is a medieval building of unclassified type located in Wales and protected by Cadw under reference CN219. The structure stands upon bedrock of Lower Cambrian age, composed of mudstone, siltstone and sandstone deposited during the Early Cambrian period. This ancient geology provides a stable foundation typical of Welsh upland sites, where such Cambrian strata underlie much of the landscape.
The building remains little documented in surviving medieval records, though its positioning reflects the settlement patterns of medieval Wales. The modest scale and construction suggest a dwelling or ancillary structure of local significance, typical of the dispersed settlement hierarchy found across the Welsh countryside during the medieval period. Its survival into the present demonstrates the durability afforded by solid stone construction on this bedrock.
Cadw's designation reflects the structure's importance to the archaeological and built heritage record of Wales. The monument contributes to understanding medieval domestic occupation in the region, and the Cambrian bedrock upon which it stands has shaped human settlement and building practices throughout the site's history and beyond.
Ty'n Twr is a scheduled monument protected by Cadw under reference CN219. View the official record →
Ty'n Twr is a medieval building of unclassified type located in Wales and protected by Cadw under reference CN219.
Ty'n Twr dates from the medieval period, and is classified as a building (unclassified). It is one of over 32,000 scheduled monuments protected across the UK.
Ty'n Twr is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is CN219.
Several scheduled monuments lie within 10 km, including Carnedd Fach cairn (4.6 km), Carnedd Dafydd, cairn to SW of (4.7 km), The Holyhead Road: the Ogwen Pass (5.7 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Ty'n Twr's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Ty'n Twr stands on Lower Cambrian Rocks (Undifferentiated), bedrock that formed in the Early Cambrian. The rock here is mudstone, siltstone and sandstone.