Report regarding a geophysical gradiometer survey (magnetometry) which was undertaken at Land at Brocklesby Park in May of 2023 as part of a PhD project researching the archaeological potential of the site including Newhouse Castle. The survey recorded an earthwork perimeter interpreted as a putative former castle, evidence for burning or ceramic debris, a demolition spread possibly associated with Newsham Abbey, several ditch segments, possible pits, and ridge and furrow plough remains. The HER is aware of excavations by the Castles Studies Trust in June 2024, and is awaiting further information.