And there in lies the challenge - if you paid now but decided to move in say 3 years time you'd be quids down. Sell in say ten years time and you'll probably make your money back ( or at least sell quicker ). Personally, if it were my home as opposed to an invest like I have, I'd look at what...
I can only give you my experience of extending rental flats but hopefully it will be of use.
The price really depends upon the greed of the freeholder - there is no real market value. That said, if you're serious then it's worth employing a solicitor - they can often get a far cheap price than...