Idaho Senate Bill S1277

Idaho 2026 Regular Session

• Introduced: 2/11/26
• Refer: 2/12/26

Caption

ACCESSORY DWELLING UNITS – Amends and adds to existing law to revise provisions regarding prohibitions against restrictive covenants banning accessory dwelling units and to establish provisions regarding accessory dwelling units in the Local Land Use Planning Act.

Summary

S1277 revises Idaho law to make accessory dwelling units (ADUs) more broadly permissible statewide. The bill treats ADUs as a residential use allowed by right under the Local Land Use Planning Act, and it sets out objective standards for local approval rather than allowing local governments to prohibit them outright. It also addresses private restrictive covenants, limiting their ability to ban or unreasonably restrict ADUs. In practical terms, the bill is intended to expand housing options for homeowners by making it easier to add a secondary living unit on an existing residential lot. The statement of purpose indicates the measure is designed to prevent certain local government entities and private covenants from blocking ADUs, while still allowing regulation through clear, objective standards. The fiscal note states that the bill is not expected to create state fiscal costs, new programs, or appropriations.

Impact

The bill would amend Idaho’s Local Land Use Planning Act and related provisions governing restrictive covenants to create a statewide framework favoring ADUs. Local governments would be limited in their ability to prohibit ADUs and would need to process them under objective, by-right standards. Private covenants that attempt to ban or unreasonably restrict ADUs would also be curtailed, affecting homeowners, homeowners associations, and local land-use regulators. The bill is not expected to have a direct fiscal impact on the state.

Sentiment

Based on the available materials, the bill appears to have a generally favorable policy framing, emphasizing housing flexibility and homeowner rights. The statement of purpose presents the measure as a statewide housing-access reform rather than a new spending initiative, and the bill advanced to referral in committee without any recorded votes or transcripted opposition in the provided materials. Because no committee discussion or vote record is included, there is no documented public debate in the record provided, but the bill’s sponsors clearly support it as a pro-housing measure.

Contention

The main area of potential contention is the balance between statewide housing policy and local control. Cities, counties, and other local land-use authorities may object to being prevented from banning or tightly restricting ADUs, especially where they prefer to preserve neighborhood character, manage density, or maintain existing zoning discretion. A second likely point of contention is the bill’s effect on private restrictive covenants and homeowners associations, which may view the measure as limiting their ability to enforce community standards. Supporters, by contrast, are likely to argue that ADUs increase housing supply and homeowner flexibility.