Interesting thoughts on this question from Christopher Hodge who runs Shackadelic in an interview with The Times ('How posh is your shed?'). Here's the snippet:
So what next in the evolution of the super hut? Hodge predicts the end of the black shack. Most current clients tend to opt for a black painted exterior, a look that Hodge says will soon look outdated. “For me, peak painting of the shed black was probably a couple of years ago. I’m trying to convince people to be a bit more colourful. I’ve been experimenting with old lime rendering techniques and tiles and Japanese carpentry, weaving bamboo, things like that. Currently I’m really into folk art and I’m working on folk stencils.”
Picture courtesy Shackadelic of a 7.7m x 3.4m guest house project with painted larch exterior cladding, corrugated onduline roof, with French doors and two skylights.
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