Well, my last permanent residence actually was the castle at Denerim, but that's an unusual situation. Elves in my world mostly either live in the Alienages (slums, basically, which are the only places elves are allowed to live in human cities), in regular houses out in the country (where they're likely to be the only elves for miles and miles), or with the Dalish clans. The Dalish live in aravels, which are sort of...homes on wheels? Carts with tent-like roofs. They migrate fairly constantly so as not to run into trouble from humans.