Unity Homes, a well-known modular home company in New England, now offers a small home at an affordable price. It’s called the Nano, and at 477 square feet, it’s available for just $50,000. That lands this adorable, energy-efficient cottage on the lower side of modular home prices in Massachusetts and other states surrounding its factory in New Hampshire, where prices are typically much higher.  Photo 17 of 22 in Modern Modular Homes For Sale From $10K to $200K