The Expansion Anti-Mansion (TEAM), is a 250 sq ft affordable house that reduces the cost of a home to $15,000. Use as a crutch to get on your feet and start long-term saving or as your permanent home that can expand in size with your home life. $15,000. That’s really it. Stop living paycheck to paycheck. Start long-term saving. 92% cheaper than the average house. 70% cheaper than the average tiny house.