Linked by Michael LevenstonR-Urban, a community powered sauna and allotment in Tower Hamlets. “As far as we are aware this is the UK’s – and the world’s – first community powered sauna,” says Andy Belfield, an architect from the R-Urban Poplar team. But R-Urban Poplar is more ambitious than just a community garden. It is an “ecology hub”, where workers and local residents are prototyping circular urban farming, mushroom growing and restore-and-repair services. There is a community kitchen and classroom, a workshop and a tool library, even a mushroom farm.