Greenhouse or barn?

This transforming house was designed by dRMM Architects in the UK, as a retirement home.  The clients wanted to live in a glass house while having the ability to control the amount of light and privacy.  The solution?  3 buildings that line up, a garage at one end and the glass house at the other. When the timber structure slides over the other two it has the appearance of a barn. Flexibility to the extreme!  

via: dvice and fred