Re: Not exactly a reasonable comparison
"As an example, my mum bought a house in the 1990 worth £15k. Now it's 10x that. She gets no extra cash out of it, and had no say- or interest- in how house prices change."
If this was you mum's second house she would have to pay capital gains tax if she sold it on the £135,000 profit. Same rules don't apply to first homes tho cos we all need a roof over our heads so can't realise the gains unless you make yourself homeless.