Overview
Castle Kevin sits on a narrow east-west ridge in County Wicklow, commanding the marshy floor of a stream valley to the north. Located just 1.3km southeast of the village of Annamoe, the site is one of only four Anglo-Norman masonry castles in the county. What remains today is a striking example of medieval military engineering: a massive square motte surrounded by a deep defensive ditch, standing as a silent witness to centuries of conflict between Norman colonists and local Irish clans.
History & Architecture
Construction began around 1214 under the orders of Henri de Londres, Archbishop of Dublin. The castle was established as a fortified manor to secure Anglo-Norman control over the Wicklow uplands and act as a buffer against the territories of the O’Byrnes and O’Tooles. In 1308, the site saw renewed military attention when Piers Gaveston, favourite of King Edward II, fortified and likely enlarged the structure following campaigns against the local clans.
The surviving earthworks are substantial. The motte measures approximately 70 metres north-to-south and 46 metres east-to-west. Its steep sides are faced with uncoursed rubble, rising six to seven metres above a flat-bottomed fosse (defensive ditch) that spans six to eight metres across. To the east, traces of a bailey area extend roughly 143 metres, though the natural topography of the ridge makes its exact boundaries difficult to trace. By the time the Ordnance Survey recorded the site in the 1830s, the stone castle had already crumbled into ruin. The fortification was eventually granted to the O’Tooles and destroyed before 1636, never to be rebuilt.
The Castlekevin Project
For decades, Castle Kevin was largely overlooked, its significance obscured by dense vegetation. In 2021, the Roundwood and District Historical, Folklore and Archaeological Society conducted a drone overflight that highlighted the alarming rate at which the site was being reclaimed by nature. This prompted a successful application for the Community Monuments Fund in 2022, launching the Castlekevin Project.
Using non-invasive technology, a team of archaeologists, ecologists, and surveyors has recently transformed our understanding of the site. Aerial LiDAR and geophysical surveys have peeled back the layers of overgrowth to reveal the full extent of the motte and bailey. Most notably, the LiDAR data has identified possible medieval linear boundaries to the west of the motte, suggesting the presence of a wider settlement area that supported the fortress. The project has also produced a comprehensive podcast series by the Irish History Podcast, documenting the survey process and interviews with local experts.
Visiting the Ruin
Castle Kevin is accessible to the public year-round and free to visit. There are no ticket offices, visitor centres, or on-site facilities. Visitors typically pull over safely on the roadside near the Annamoe turn-off and follow a footpath up the ridge to the site. The approach takes about 10 to 15 minutes and involves a gentle climb over uneven ground, so sturdy footwear is recommended.
Once at the summit, the motte offers a commanding perspective of the surrounding landscape. The marshy valley below, which once provided natural defensive barriers, remains a distinctive feature of the area. The site is particularly rewarding for history enthusiasts and photographers looking to explore Wicklow’s medieval frontier away from the busier tourist routes. As the site is unstaffed and remote, it is advisable to visit during daylight hours and take all litter home.
Conservation & Future Plans
Castle Kevin has been protected under a preservation order since 1940 (Monument Numbers WI024-003 and associated). The recent conservation plan, funded by the Department of Housing, Local Government and Heritage, outlines a clear path for the site’s future. Key initiatives include targeted vegetation management to prevent root damage to the earthworks, the consolidation of surviving gate tower and corner tower fragments, and the installation of interpretative signage.
A second LiDAR survey is planned for when the seasonal vegetation dies back, which will further refine the archaeological model. For those interested in the ongoing work, the Castlekevin Project podcast and the society’s updates provide a detailed look at how community heritage groups are working to safeguard Ireland’s medieval monuments.