This bill amends Idaho law to prohibit restrictive covenants that prevent or unreasonably restrict the construction of twin homes and duplexes on lots where single-family dwellings are allowed, with the exception of historic districts. It establishes that any such covenants are against public policy, void, and unenforceable, and imposes liability for attorney's fees and damages on those attempting to enforce them. Additionally, it declares that any existing restrictive covenants prior to the bill's effective date will also be void.

Furthermore, the bill prohibits counties and cities from enacting ordinances that ban twin homes or duplexes in residential areas where single-family homes are permitted. It mandates that local governing boards amend their comprehensive plans and land use regulations to allow for the development of twin homes and duplexes, ensuring that such projects are approved administratively without discretionary approval. The bill also sets standards to prevent unreasonable costs or delays in the approval process and allows affected parties to seek legal remedies for non-compliance. The act is set to take effect on July 1, 2026.