This raised square platform, measuring 50 metres by 50 metres and standing about 0.8 metres high, marks the spot where Colonel Percy built a fortified house around 1700. The surrounding walls that create the enclosed field system date from the 18th and 19th centuries, adding layers of history to this already intriguing site.

By the time the Ordnance Survey mapped the area in 1838, Seskin House was already recorded as being in ruins, suggesting it had fallen into disrepair relatively quickly after its construction. The local tradition maintains that this was indeed a fortified dwelling, which makes sense given the turbulent nature of early 18th-century Ireland, when landowners often felt the need to build defensible homes. The platform that remains today offers a tangible connection to this period of Irish history, when the country was still recovering from the Williamite Wars and adjusting to the new Protestant Ascendancy.

Though little remains of the actual structure, the site continues to be known locally as the location of Colonel Percy’s fortified house. The careful construction of the surrounding field walls, which have survived much longer than the house itself, speaks to the agricultural importance of the land and the investment made in creating these enclosed spaces. Today, visitors to Seskin can still trace the outline of the platform and imagine the substantial house that once stood here, overlooking the carefully divided fields of this corner of Wicklow.