tract house

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

• noun One of numerous houses of similar or complementary design constructed on a tract of land.

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

• noun US Any of many houses, of a similar (if not identical) plan and design, built on a tract of land

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

• noun one of many houses of similar design constructed together on a tract of land