© Mapbox · © OpenStreetMap contributors · Boundary data © DfC Northern Ireland (NISMR)
Castleboy is a fifteenth-century tower-house, a characteristically compact fortified residence built across the Ards Peninsula during the late medieval period. Located on bedrock of the Gala Group wacke, which formed during the Telychian epoch, the tower-house occupies land shaped by ancient geological forces that have defined the landscape of County Down. Such stone-built towers represented the domestic strongholds of local landholding families, combining residential and defensive purposes within a vertical plan suited to the politically turbulent frontier territories of late medieval Ulster.
Tower-houses proliferated throughout Ireland in the fifteenth and sixteenth centuries as feudal relationships fragmented and local power became increasingly militarised. These structures typically contained multiple storeys arranged around a single tower, with narrow windows and strong walls designed to withstand siege and protect valuable moveable goods. The Ards Peninsula's scattered position and accessible harbours made it strategically significant, encouraging fortification among those controlling local resources.
Castleboy is recorded in the Historic Environment Division's register of protected monuments and stands as archaeological evidence of domestic life and military organisation in fifteenth-century Ulster. Though altered through subsequent centuries, the tower-house preserves within its fabric the building practices and social hierarchies of the late medieval Irish lordships that dominated the region before Tudor conquest.
Castleboy. tower-house is a scheduled monument protected by Department for Communities NI under reference 7293. View the official record →
Castleboy is a fifteenth-century tower-house, a characteristically compact fortified residence built across the Ards Peninsula during the late medieval period. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 7293.
Castleboy. tower-house dates from the c15th period, and is classified as a fortification. It is one of over 32,000 scheduled monuments protected across the UK.
Castleboy. tower-house is a Scheduled Ancient Monument, legally protected by DfC Northern Ireland (NISMR) — the body responsible for designating and safeguarding heritage sites in Ni. The official designation reference is 7293.
Several scheduled monuments lie within 10 km, including Ballytrustan. medieval church & graveyard (5.9 km), Platform rath (6.1 km), Old court. tower (6.6 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Castleboy. tower-house'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.
Castleboy. tower-house stands on Gala Group, bedrock that formed in the Telychian. The rock here is wacke.