; (viii) allowing accessory dwelling units; and (ix) using local tax incentives to promote development of affordable housing; and (B) do not include activities that alter ordinances that govern wage and hour laws, family and medical leave laws, or protections for workers' health and safety, anti-discrimination, and right to organize. (e) Labor laws (1) In general All laborers and mechanics employed by contractors or subcontractors in the performance of construction work financed in whole or in part with a grant received under this section shall be paid wages at rates not less than those prevailing on similar construction in the locality as determined by the Secretary of Labor in accordance with subchapter IV of chapter 31 of title 40, United States Code (commonly known as the Davis-Bacon Act ). (2) Exception Paragraph (1) shall not apply with respect to— (A) the rehabilitation of residential property if the property contains less than 8 units