Honour amongst thieves

[Jack]

Think all you have to do when you've bought land is to register it:

https://www.gov.uk/registering-land-or-p...d-registry

This seems to clear up some things, but its to do with houses:

https://www.gov.uk/buy-sell-your-home/tr...nveyancing

But as usual its vague in what the seller has to do:

The seller is responsible for drawing up a legal contract to transfer ownership.
The contract contains details about:

• the sale price
  
• the property boundaries
  
• which fixtures and fittings (like carpets and kitchen units) are included
  
• any legal restrictions or rights, like public footpaths or rules about using the property
  
• any planning restrictions
  
• services to the property, like drainage and gas
  
• when the sale will complete
  

If the seller has hired a solicitor or conveyancer, they will:

• draft the initial contract
  
• answer questions from the buyer’s solicitor or conveyancer (with the seller’s help)
  
• negotiate the details of the contract if necessary
  

Seems to say only have to declare existing planning restrictions not potential ones. I guess its one of those 'for the solicitors to sort out' situations.
But I would assume there is no onus on a seller to declare any possible planning restrictions as that would be amazingly impossible to do.
In this case though, as I understand it, your working for the buyer and not the seller.
Completely guessing the legal stuff (anyone know the actual legalities?) a court case would have to ensue to prove the point that your appraisal on the sites archaeology would stand as known planning restriction.
Equally I think your client is within their rights to take you to court to test whether your advice was sound and a fit product under the rights of a buyer? Dunno.

Its all a bit strange and unusual to me.