Contemporary prefab home, Montana: Modern prefab modular homes - garage door window feature
This Cheap Flat-Pack Modular Home Won't Fall Over In A Hurricane
It's called an Eco Pod, an eco friendly outdoor office designed By Pod Space in the UK. In the views I looked at, it doesn't have a loo. However, since we're spending, I suppose Pod Space could design and build a loo, too.
Sips UK Ltd have manufactured garden building kits for numerous garden building companies
Quirky contemporary flat-pack Supplier: Fleming Homes
Budget family home | Self-build.co.uk
A garden building with potential for replacement