The hub *might* have become called "Crossfield Mental Health Day Centre". On the other hand it might be that was its old name. Kind of more likely but then again camdenhub twitter account stopped in 2014. I'll try tweeting to find out https://twitter.com/harry_wood/status/839890852268949504 but ideally this needs survey

Among other unreliable looking bits and bobs on the web, the Camden Council open dataset on polling stations lists it as "Crossfield Day Centre" http://harrywood.co.uk/maps/map-my-data2.html?url=https%3A%2F%2Fopendata.camden.gov.uk%2Fresource%2Ftdwv-zwut.json

Also note that this currently has a missing mental health tag FIXME