For better or for worse (and most seem to think it's for worse) the EFDSS got Cecil Sharp House listed some years ago. That lowers the resale value of the house enormously because you can't change its use much and of course you can't rebuild it. So it would be hideously expensive to move by selling the house and buying another (even at northern prices)

Of course keeping Cecil Sharp house and acquiring another property in the Midlands or the North would be expensive too. It's probably the better option, as it makes sense for the society to keep some sort of London presence.

The practical way forward might be to start a small branch in the North and build it up slowly. I have no idea if that's the plan, it's just an idea.

Anahata