I’m from the Cressfeild estate in Kentish Town and we received a similar bill this week as well. We bought our flat in 2014 and were invoiced for the same work that was undertaken in 2011. I contacted Leaseholder Services this week and received the following advice:
1. Legally Camden are able to recharge leaseholders up to a maximum of six years from the works completion date
2. Contact the Solicitor who conducted the conveyancing on our behalf since they should have held back a ‘retention amount’ to cover the charge if a section 20 had been issued. I contacted our solicitor and awaiting their response.
Hope that’s helpful