This new floating island is offering ‘mega mansions’ for sale for US$1.5 billion. The blue estate is described as the 'World's First Floating Real Estate Development'. Floating on the Caribbean Sea, it will be half the size of Monaco. The island will have 15,000 permanent residents, businesses, a state-of-the-art health clinic & an international school. Properties start from $19.8K studio apartments to spectacular ‘signature estates’ mega mansions. The Blue Estate is expected to be completed in 2025.