I have been considering the outside garden design, as I have choosen To have the garden as a music zone - speakers mounted on the outside walls - however, I then realised that it would be hard to hear the music due to the wind - so I have considered a sunken garden, however as we are at a high water table CLAY - it would be a submersed garden! So the alternative is a sheltered garden , a cave like feature which provides a sheltered area on windy days. I have searched google for ideas but am drawing a blank ..watch this space !