National Houses are perhaps the first style of architecture born in North America. Early settlers mixed the structure of a traditional English house with some aspects of Native American design. The narrow profile of a national house, with its high-angle roof, looks like a tepee and a shed construction and is better suited to withstand the harsh winters of New England.
However, this style takes its name from the fact that, with the advent of the railroad, it eventually spread beyond New England and into all parts of the country. Each region was then able to give its own turn to style. For example, Midwest versions typically have two floors, while southern versions typically have a large screened porch.
National style houses are thought to be the predecessors of many of the most common architectural styles we see today, especially colonial and federal homes.