Inclusionary Zoning or "IZ" is municipal and county planning ordinances that require a given share of new construction to be affordable by people with low to moderate incomes. This progressive, new development strategy has been used in countless cities because it costs the taxpayers nothing, and it addresses affordable housing shortages without creating ghettos. Also known as “mixed” developments. IZ can be set up as a “Bylaw” allowing potential developers to circumvent the zoning board, and streamline their projects' approval. This is the only incentive they will need. As a "bylaw" it is meant to also encourage homeowners who want to "build up" their houses to add additional rental units. Allowing Nashvillians to easily add to their household income, and the number of affordable housing units available at the same time, regardless of their neighborhood's zoning.