Many thanks for your advice Craig and Homebuyer
De-registering for VAT may well be an option, he really needs to meet with hs accountant and get everything up to date.
Regarding the works you do Homebuyer, do you buy the land/properties in the company name or your own? It does sound as though your works are on a much larger scale as before we decided on BTS for ourselves, the works were mainly residential extensions/alterations etc for local architects. For our BTS he was advised to treat it as a customer's job, buy in our names, the company charges us for the works, then the company reclaims the VAT on materials etc. However, surely to show a profit the company charges us more VAT on the works than it incurs whilst doing them which is the bit I can't get my head around.
Sorry if I seem really unclear on this, I know we need to get a good accountant who can advise on tax etc whether we go down the BTL, BTS or BMV route from now on. We have one BTL and completed another BTS in December but no takers yet!!! I just can't fathom if keeping the Ltd company going will be of any benefit.