All inclusionary development on sites identified in the Township Fair Share Plan or any new construction of multifamily dwelling unit developments, whether for-sale or rental, within the borders of the Township proposing five units or more, shall have a mandatory 20% set aside for the purposes of providing affordable housing to low- and moderate-income households. The provisions here within shall not apply to residential expansions, additions, renovations, replacement, or any other type of residential development that does not result in a net increase in the number of dwellings.