One example is a 28-by-43-foot home, 1,204 square feet, with two bedrooms, two bathrooms, a living room, dining room and kitchen. According to Energize Delaware, a rough estimate for the home’s ...

Lenders are leery of modular housing, so most people who can afford a pre-fab granny flat are already wealthy. Samara’s biggest model, a two-bedroom cottage, costs about $277,000.