My Brother manage to sell some properties and only paid tax on one which was the one sold at a lower price. He then removed the money from his bank before buying a house near Torquay. A bit later, he claimed Pension credits. At his funeral, they played the fools and horses theme tune.
In his working life, he got caught twice for avoiding tax and paid them largish lump sums. One was so large he had to sell one house to pay his bill.
The worst problem with house ownership is if one of a marriage goes into care then the other one dies. They order you to sell the house to fund the care.
My Uncle died in January in care for 3 years. His home bill was 2k a week and he had paid for it himself by selling his farmland and house in Cornwall. You certainly cannot take it with you. He has made some payment to my Sister in his will but waiting to see how much now. He did give to the Nieces but not Nephews as we had done better than the girls. He had told me that a lot was going to the RSPCA. It is a sum in millions as the farm is future building land.