GrannyGrunter that law had been in place for centuries and I do not remember in the many decades of my life before it was changed that we saw a wholesale takeover of vacant properties by sqyuatters who claimed them as their own.
A property may attract squatters if it is empty for aa while, but owners have always had legal rights to eveict them.To get the rights this builder claimed you need to do what the owner of this property did, go away, leave it, never visit it, or maintain it for decades and do nothing when a squatter moves in.
Remember, if you hand something into a police station that you have found in the road - a large sum of money, valuable watch or jewellry. a work of art even, if after a certain length of time the true owner has not claimed it back, then the police will give the item to you as your property.
Here is a link to what you can do with property you find notlost.com/the-definitive-guide-to-lost-property-laws-in-the-uk/
The rules applying to this house essentially follow the same broad principles that govern other lost property.
Remember the owner of this house had 12 years when he could have visited the house, done something to assert his ownership, ie applied to administer his mother's estate, he could have kept the property in good order. He chose to do none of these things.
What did you you think you would have by your current age that you don't?
Unused rooms, heat storage and heat transfer


