Artist residence in Amsterdam

This house might just as well be called the ‘what if’ house.
What if we use a tree in the centre of a spiraling staircase as the basis for a house?

What if we only build a shell, an extrusion of the plot limits, that can be filled with spaces and rooms over time?

What if we only used common¬†‘ready made’¬†roof lights to build this shell?

What if…
What if…