Church Street1 is in the old part of Folkestone, by St Eanswythe's church, I would guess the building is likely to be still there, though that might be where the primary school2 is now. When I get a chance I'll go down there and have a look, maybe take a picture.
It get's a mention in Mackie (according to this great index3, if you can [abe=mackie folkestone neighbourhood]track down a copy[/abe].
This is part of my website The 'Gerald that I set up in a fury of excitement when I first came to Folkestone sometime in '04. I'd been a frequent visitor for a few years previous to that but I am technically one of those Down From Londons you get nowadays. The site used to be updated more frequently with a calendar of events and voting for best venues + things, + I know it was a handy reference for those who were moving to the area. Now I've moved out of Folkestone again (though only a couple of miles) it doesn't get as much attention as it used to. Ironic really as Folkestone itself is now becoming the exciting place we always thought it was just about to. I am not Gerald BTW, this comes from a fake paper in an episode of Brasseye or something, the Portsmouth Gerald, + how there is a local newspaper here called the Folkestone Herald. Puns like this are great aren't they? Do contact me if you have anything to offer, email anythign @ this domain, or try @folkestone or @pauly on the twitter.