Working on a constrained site with large feature trees to be retained, we developed a design that replaced an existing garage and shed to provide our clients with a new garage and glazed link to a multipurpose study/guest bedroom. The project also included a garden room, utility, and shower room, replacing an existing inefficient conservatory. Working with Hellis Solutions Ltd as tree consultants, we designed the structure around the trees with mini pile foundations being used to avoid damaging the roots. High levels of insulation and efficient triple-glazed windows with a new underfloor heating system in the extension, provide a very comfortable internal environment. Externally, the extension is clad with Larch boarding and has a part Zinc, part sedum roof with the natural materials enhancing this garden setting.