Hi guys,
Foxylady speak to your solicitor again. I had a similar situation with a client and as far as I recall, I served a completion notice on the builder. At the expiry of the notice time was then of the essence and we rescinded. Even if there is a question mark over the issue, it is very unlikely, imo, that a builder will succeed against you in court where there has been an unreasonably long delay in completing the contract.
Lollipoptree, I think it all depends on your builder. You did sign a contract, and you are legally bound to complete the purchase. However, I have had a lot of trouble completing sales for my builder clients over the last year because purchasers are having terrible trouble getting finance. You would be surprised at how flexible builders are becoming in these difficult times!!
If I were you I would contact my solicitor and ask them to make contact with the builder formally. Do you have a loan offer for the new house? Do you think you will have trouble getting one? I think you should try, through your solicitor, to negotiate the lower price for the property. Be calm, polite, but hold firm. It's definitely worth a go.
Kate.