I believe that about ten years ago or thereabouts, the Jewish community in Golders Green (north London, UK), declared part of that area to be an "eruv". Naturally, I don't fully understand any part of Jewish teaching or folklore, but I think it meant that it was an area where the strict letter of the law did not apply.

(The measure was originally meant as a benefit to those confined to a wheelchair, as they could be otherwise held to be "riding" on the Sabbath).