Bel24, unfortunately I've not much to ad to your query but I'm very interested in this topic too as the value of my property has dropped, IMO, to the value of what I paid for it. I've already written to my Co Co who have advised me to get a formal valuation.
A factor which will influence whether I pursue this sooner rather than later will be in relation to the issue of legal costs. Can you tell me if you'll need to involve a solicitor in this? I had assumed I would but frm reading your post now I'm led to believe I might not need one. The thoughts of giving him another couple of grand for processing this is a bit daunting!
Many thanks!
P.