The house is an ICF, which stands for insulated concrete form. The house has a first floor of 22,882 square feet, a second level of 21,759 square feet, and a basement of 23,020 square feet. 13 bedrooms, 14 bathrooms, a home theater, a music room, a 1,600-square-foot library, and a 4,000-square-foot garage will be included. The house will have a total living area of more than 70,000 square feet. It's been called the biggest house in America. If it is built, it will be a monstrosity that no one needs or wants. It doesn't make financial sense, and it's sure to be a disaster for its occupants. The largest home under construction is being built by world-famous architect Richard Meier for $25 million. It will be a luxury condominium building in San Francisco's Pacific Heights neighborhood. When it is completed in 2017, it will have 25 floors and 3,525 square feet of living space per apartment. A one-bedroom apartment will have 5,100 square feet of space. The 2-bedroom unit will have 7,200 square feet of space. Meier was chosen after other famous architects such as Frank Gehry and Zaha Hadid submitted proposals for the project. He said building such a large home is "a dream come true." In conclusion, the largest home under construction is enormous!