Limited property rights for houses arise when the legal rules don't fully recognize the rights that homeowners have over their properties. To fix this, the researchers suggest embracing a new approach. They propose separating the right to use a property from the legal ownership of it. By adding a new type of planning index and expanding property rights, they believe it's possible to create a more comprehensive system that better reflects the true value of a property. This could lead to a better understanding of what rights homeowners possess and how to protect those rights more effectively.