My dear Matthew (via his dear Cory) turned me onto this amazing home in England, by dRMM Architecture, that SLIDES!  Check it… I wrote a lengthier post for The Green Girls – feel free to read it here, but here’s the gist:

The outer “shell” is on a track that can slide from one end of Living area – which includes 3 buildings, a swimming pool and a courtyard.  Depending on where the shell is positioned… the pool  & courtyard can be covered or uncovered, the house can be completely enclosed or exposed to bright light!

The super sunny side of this entire brillsville design is that the mobility of the shell gives the homeowners great control over their interior climate, manipulating the heating and cooling loads of the house – in turn lowering their energy usage!