You may think that an existing or historic home—known for its drafty windows, old-fashioned mechanical systems, and obsolete construction materials and techniques—would be one of the least sustainable, green-friendly buildings around, but you'd be oh-so-very wrong! Photo 11 of 20 in 20 Best Modern Homes from the Midwest by Erika Heet from Modern Homes Across the American Midwest

20 Best Modern Homes from the Midwest

11 of 20

You may think that an existing or historic home—known for its drafty windows, old-fashioned mechanical systems, and obsolete construction materials and techniques—would be one of the least sustainable, green-friendly buildings around, but you'd be oh-so-very wrong!