Same thing with building codes. Make them more onerous to increase construction costs. Then lol all the way to the bank when you grandfather your own house in

Same thing with building codes. Make them more onerous to increase construction costs. Then lol all the way to the bank when you grandfather your own house in, increasing your own property value as it is now impossible to build a house as economically as your own. Sprinkle in some "think of the safety of the children" for good measure, no matter the fact your own house is justified as safe enough to stand.