In reply to Removed UserTonyLW:
Yes!
depending on where you are sportscotland or sportengland are good places to start, for which you'll need support from BMC/MCofS that your facility is going to contribute to climbing in general. You'll struggle more if you have a very good wall nearby already.
My main piece of advice would be to sort out the idea before you start chasing money- money should be the last piece of the puzzle or you will not get it from a government or lottery grant scheme.
Good luck