H-VAC: Rooftop tiny house

While tiny houses are often associated with rural locations architects PUP  have put the case for using rooftop space in London via their duct-shape design H-VAC which plays with what is and isn't allowed under planning restrictions in the city (and is clad rather imaginatively in reversible Tetra-Pak shingles). Here's what they say about it: 
Internally the pavilion includes a small room two stories up with two comfortable benches designed for up to 6 people to sit and talk or work enjoying the elevated position above the canal. The pavilion extends the mix of artists studios and event spaces in the warehouses below and offers a retreat high-up on the rooftops. A hung stair connects the pavilion to the studios below. Visitors can access the pavilion secretly from below climbing up inside without having to access the open rooftop itself.
H-VAC is the latest in the Architecture Foundation's Antepavilion project which encourages architects and designers to come up with alternative ways of living in London, especially bearing in mind the concept of a tiny house. PUP chose the duct design because while plans to build a house up there would immediately run into red tape, local planning laws are happy for a two-level service structure to be placed there.
Photo: Jim Stephenson (and lots more excellent ones at PUP