mobile home

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A large trailer, fitted with parts for connection to utilities, that can be installed on a relatively permanent site and that is used as a residence.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A prefabricated home built in a factory, rather than on site, and then taken to the place where it will be occupied.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a large house trailer that can be connected to utilities and can be parked in one place and used as permanent housing