Go to www.landreg.gov.uk, then Publications/Forms at the top, then Forms from the drop down menu, then print off Form 313, fill it in and send with a cheque for �4 to the address on the form.
If you phone the council housing department if you give them the right address they should be able to tell you if the council own it or not. Please don't say the one by the shop/at the top of the hill or er, you know where I mean! I heard all these things when I worked for a local housing association and believe it or not they usually don't know where you mean!!!