TreeHugger favourite Andrew Maynard was on a budget with his Tattoo House in Fitzroy North, Australia, and writes "Every element needed to perform multiple functions for maximum return- hence the kitchen bench becomes part of the stair."
I am not sure much money is saved by walking on the kitchen counter....
But it certainly is an economical use of materials, and very elegant.
Maynard solved another problem, a local rule that demanded that 75% of a second storey be opaque to minimize overlook into the neighbours' yards, by putting stickers on the windows.
The tree supergraphic creates playful and ever-changing shadows across the interior spaces and is composed of images taken in the local park.
Despite these challenges a double story, non-domestic scale space was achieved with a basic palette of materials.
More on the Tattoo House by Andrew Maynard
More on Andrew Maynard:
Andrew Maynard's Suburb-Eating Robots
Andrew Maynard's Corb 2.0: Archigram Reborn
Poop House by Andrew Maynard