The post office's BTL rate is quite alot higher than Northern Rock's standard variable rate. You may be better off considering a straightforward BTL remortgage plus a secured or unsecured loan which you can pay off quickly (higher rate over a shorter term would cost less than a lower rate over a longer term). If you have your own main residence with a residential mortgage then you could use part of that by way of a further advance from that lender.

Brian

We need a new buy to let mortgage and need to borrow extra money also to pay for our wedding (we owe £93,000 on the flat and would like to borrow £105,000). Our flat was valued low at £133,000 by the surveyor to Birmingham Midshires which cost us £350. With the 75% LTV mortgage we applied for we now can't borrow as much as we would like (£105,000). If our flat was valued at £140,000 then we would be ok, or an 80% LTV mortgage was available this would suffice. I have contacted BM and thy say i can appeal the valuaion - I don't know if we have time as our current deal expires on 1/1/09 and is with Northern Rock - who want rid of us! Can anyone help with suggestions?