Unfortunately, you’ve said I would have to sign an NDA to get more info from the seller which would make the whole exercise pointless. I will make an alternate offer: I will pay £10,000 to the charity of your choice if you show documentation that proves the land has been independently valued at more than £1m (by someone accredited) and that the land was purchased for more than the amount shown on the land registry.
I am sure, in the cold light of day, tomorrow, you’ll realise you’ve been had and you’ll have to have an awkward conversation with West London Lets where they reveal that actually it was purchased for £7k and actually they’ve valued it at £1.9m based on the assumption it can get planning permission and then you quietly remove all the posts about it from your website and pretend this never happened. I won’t hold it against you, but do implore you to reconsider your approach to who you work with. With partners like West London Lets, who needs competitors?