It is a room that could have a view – but if so, there’s no way to get in to admire it. Or see whether the room contains treasures – or cobwebs.

The property measures 12sqm and is completely unaccessible.

So, for all its town centre location and riverside setting, its use is not so much restricted as non-existent. Bricked up on all sides, and suspended over an alleyway in Wisbech, Cambridgeshire, not even the auctioneer, Victoria Reek of William H Brown, was able to get in and see it.

It was put up for sale by the local council with a guide price of £100. However, it went for just £1 yesterday – with no way of the buyer knowing whether they were quids in.