Sustainable House Day returns in May 2025, and in Sanctuary 70 we bring you an early look at a handful of the amazing homes opening around the country, along with a collection of enticing house profiles to further whet your appetite for great design. We also focus on volume builds, with a feature article on the latest sustainability initiatives in the industry, plus tips for potential customers. Architect Shae Parker McCashen encourages readers to rethink what it means to future-proof their home. Fiona Gray contributes the final article in our series on biophilic design, and we explore the joys of natural swimming pools – plus much more.