Hammerman, you can nearly do that. When you buy a house at auction, the auctioneer requires you to fill in and sign a form. All that does is describe the property, the amount paid, and the parties to the sale. That's a 'memorandum of sale', constituting a deed, and the parties are legally bound by it; you can't escape. You are deemed to have cognizance of all material matters. Bad luck if it turns out to be falling down or have people with rights of way through the garage.
This used to be governed by the Law of Property Act 1925 s40 but is now under the Law of Property (Miscellaneous Provisions ) Act 1989 which in truth, replicates it. And it applies to private sales. If the document is in due form for a deed, duly witnessed, it makes an enforceable contract for the sale. Of course, this may not be simple in the end because the Land Registry will require the land to be registered if it isn't already and that may mean work.
Under s40 (above) my late father bought a whole farm from a farmer who didn't like using lawyers. They found a piece of paper and recorded the transaction as above, the money was handed over, and my father had got a farm. Naturally, he took the bit of paper to his solicitor, who was horrified, but the whole sale went through.