While considering a house move, I checked that the exchange serving the new house (Halkyn - WNHAL) is FTTC enabled. It is "in some areas".
Upon further investigation, it seems that the cabinet serving the address (Cabinet 1, according to www.homeandwork.openreach.co.uk/when-can-i-get-fibre.aspx) is currently only "In Scope" for upgrade.
Is there any way to check how long it's been at that project stage, and when the upgrade is likely to happen? I work from home and poor connectivity is a potential show stopper as far as the house move goes, although I could probably survive on DSL for a couple of months.