I'd disagree with Missingblade about rezoning not happening, and though I'd agree theres no jackhammers, I'd disagree that 6 inches of plywood and fibreglass keep noise out better than Mr Concrete.
No scraping of furniture/kids toys across the floor above you, no jackhammering in the walls. No sound of old mate above you taking a 3am leak. No putrid cabbage smells permeating through from your neighbour's cooking. You get the idea.