Wressle Castle is now a Grade I listed ruin and a scheduled monument. The remains include earthworks indicating the moat, and some parts of the castle: the remains of the two towers of the south range; and a building fragment, thought to have been a bakehouse. According to Historic England, the site was first investigated archaeologically in 1993, when Humberside Archaeology Unit held a watching brief. The state of the site deteriorated to the point at which in 1999 Wressle Castle was included on the Heritage at Risk Register. Historic England, Natural England and the Country Houses Foundation invested £500,000 in repairing the castle and in 2015 Wressle was no longer considered ‘at risk’ and was removed from the register. This included architectural and landscape surveys carried out by Ed Dennison Archaeological Services, with funding from the Castle Studies Trust for the landscape survey.