Four speculative architectural proposals for The Mausoleum, an At-Risk heritage building on the Seaton Delaval estate, Tyne and Wear. Although built for a purpose, no burials ever took place on site. The proposals explore Adaptive Reuse strategies and illustrate how terminology can inform design thinking and decision-making. The four approaches, Outervention, Intervention, Insertion, and Integration, present a spectrum of reuse, ranging from external structures that avoid contact with the historic fabric, to minimal internal circulation elements such as platforms and staircases, through to designs that sensitively integrate functional spaces while retaining the legibility of the ruin. The axonometric drawings combine a 3D model of the Mausoleum, high-resolution LiDAR and photogrammetry data (Amess, 2025), and proposal models. Developed as part of a practice-based PhD at Northumbria University, the research aims to develop clarity around new and contested Adaptive Reuse terminology.