Though the castle doesn’t appear on the Down Survey maps from 1656-8, historical records paint a picture of what once stood here. According to the Civil Survey of 1654-6, John Plunkett of Loughcrew held this estate in 1640, which comprised over 100 acres complete with a castle, cornmill, and nine cabins. The Plunketts were a prominent Anglo-Norman family who had held considerable power in Meath since medieval times, and this property formed part of their extensive holdings across the county.

The Ordnance Survey map of 1836 shows the castle as an oblong structure measuring approximately 20 metres east to west and 5 metres north to south; quite a substantial building for its time. By the 1908 edition, however, it had already been reduced to merely “the site of a castle”, suggesting the structure had deteriorated significantly during the 19th century. This decline mirrors the fate of many Irish tower houses and castles, particularly following the upheavals of the 17th century and the gradual shift of the landed gentry to more comfortable Georgian mansions.

Today, visitors to Tubroad will find only a modest cairn marking where the castle once stood. Measuring 7 metres by 2 metres and standing about half a metre high, this pile of stones retains some facing stones that hint at its former construction. While it may seem unremarkable to the casual observer, this humble mound represents centuries of Irish history; from Anglo-Norman settlement through plantation politics, to the eventual abandonment of these medieval strongholds. The cornmill and cabins that once surrounded the castle have vanished entirely, leaving only field boundaries and place names to mark where a thriving estate once existed.