AbleNook is a Florida-based prefabricated, flat-pack home kit made from aircraft-grade aluminum framing and structural insulated panels (SIPs). Although it started out as an architecture school project, it was later patented through the University of South Florida and makes for an affordable ADU starting at $75,000. Use it as a main residence, eco-friendly second home, or Airbnb. They’re also designed to be potential disaster relief, as they’re ready for just about any terrain or weather conditions, including Florida’s hurricane winds. It’s also expandable to accommodate a range of sizes.