He built it on farmland in the green belt. Whether you like the look of this ersatz executive Hobbit-style "castle" or not the green belt needs protecting. And if the house were allowed to stand the value of the plot would jump by squillions because you'd be allowed to have a dwelling there, smack in the green belt, in perpetuity. That can't be allowed, because I don't have squillions and I won't have some crafty ne'er do well with a dodgy barnet getting rich. And he's called Fidler, which I'm quite sure is a pikey name. The whole scheme reeks of pikey.
I bet he's got three Range Rovers and two Mercs. And goes dogging. And doesn't wash afterwards.