New Ground housing development in High Barnet, north London, is not an old people’s home — it is Britain’s first all-female cohousing community for older people. Ten years ago, 26 women ranging in age from their early fifties to their mid-eighties moved into this three-storey brick block, which they had co-designed on the site of an old convent school tucked behind the local high street. They come from vastly different walks of life but are united by one radical idea: what if we didn’t have to g