Bill Analyses and Ratings
Bill Information: H0800 – Manufactured Home Siting & Definition Updates
Bill Summary
House Bill 800 makes two substantive changes to Idaho law governing manufactured homes. First, it expands the statutory definition of ‘manufactured home’ in Idaho Code 39-4105 to explicitly include multidwelling unit manufactured homes built to HUD construction and safety standards, and makes technical corrections to code references (lowercasing ‘International Building Code’ and ‘International Fire Code’ and replacing ‘which’ with ‘that’ throughout). Second, it revises Idaho Code 67-6509A to clarify how different types of manufactured homes may be sited: single-dwelling-unit manufactured homes may be placed on lots where single-family dwellings are permitted, while multidwelling unit manufactured homes may only be sited in areas zoned for multifamily dwellings.
The bill also significantly reduces the minimum enclosed space requirement for manufactured homes placed outside mobile home parks. Under existing law, the allowable placement standard was ‘not less than one thousand (1,000) square feet.’ The bill replaces this with 400 square feet for a single-section manufactured home and 800 square feet for a multisectional manufactured home, and changes the mandatory ‘shall be’ multisectional language to ‘may be either a single section or multisectional,’ giving local governments more flexibility in the standards they adopt.
The bill takes effect July 1, 2026, under an emergency declaration. It does not alter the existing authority of local governments to adopt placement standards, architectural requirements, or development conditions, nor does it affect recorded restrictive covenants or historic district exemptions.
Overall Assessment
This bill expands housing options for Idaho property owners by reducing regulatory barriers to placing manufactured homes on privately owned lots. The most direct impact is the reduction of the minimum size threshold local governments may impose—from 1,000 square feet down to 400 square feet for single-section homes—making more manufactured home models eligible for placement in residential zones. Property owners gain broader flexibility in how they develop and use their land, while the new multidwelling unit provisions open a pathway for HUD-compliant multi-unit manufactured structures to be sited in multifamily zones.
Rating Breakdown
ARTICLE I. RESPONSIBILITY IN GOVERNMENT (0)
This bill amends building code definitions and residential zoning rules for manufactured homes. It makes no changes to government spending, taxation, appropriations, or the structure of state government.
ARTICLE II. CITIZEN INVOLVEMENT IN GOVERNMENT (0)
The bill addresses manufactured home definitions and siting standards exclusively. It has no bearing on elections, voting procedures, citizen participation in government, or political processes.
ARTICLE III. EDUCATION (0)
This bill concerns residential building codes and zoning. It has no connection to schools, curricula, parental rights in education, or education funding.
ARTICLE IV. AGRICULTURE (0)
The bill regulates the siting and definition of manufactured homes in residential zones. It does not address farming, ranching, agricultural markets, or rural land use in an agricultural context.
ARTICLE V. WATER (0)
This bill makes no changes to water rights, water appropriation, inter-basin transfers, or state jurisdiction over water resources.
ARTICLE VI. NATURAL RESOURCES AND ENVIRONMENT (0)
The bill pertains to residential zoning and building standards for manufactured homes. It does not address environmental policy, natural resource extraction, wilderness, or federal land management.
ARTICLE VII. ENERGY (0)
This bill makes no changes related to energy production, utility regulation, hydroelectric power, or energy independence. Its scope is limited to housing definitions and siting rules.
ARTICLE VIII. IDAHO NATIONAL LABORATORIES (0)
The bill addresses manufactured home regulations and has no connection to the Idaho National Laboratory, nuclear research, or technology development.
ARTICLE IX. PRIVATE PROPERTY RIGHTS (1)
The bill directly reduces regulatory restrictions on how property owners may develop their land. By lowering the minimum enclosed space requirement from 1,000 square feet to 400 square feet (single-section) or 800 square feet (multisectional), and by clarifying that single-unit manufactured homes may be sited wherever single-family dwellings are allowed, the bill expands the range of structures a property owner may legally place on their lot. This reduces the ability of local governments to use size mandates to effectively exclude manufactured homes from residential zones.
ARTICLE X. STATE AND FEDERAL LANDS (0)
This bill applies to local zoning for privately owned residential parcels. It does not address state or federal land ownership, management, or transfer.
ARTICLE XI. WILDLIFE MANAGEMENT (0)
The bill concerns residential housing regulations and has no connection to fish and game management, hunting, predator control, or wildlife habitat.
ARTICLE XII. ECONOMY (0)
While reducing minimum size requirements for manufactured homes may lower housing costs and expand the market for manufactured home manufacturers and buyers, the bill's provisions are narrowly focused on residential zoning standards rather than commerce, small business regulation, labor, or broader economic development policy.
ARTICLE XIII. HEALTH AND WELFARE (0)
This bill addresses building code definitions and residential siting standards. It does not modify healthcare access, health insurance, patient rights, or welfare programs.
ARTICLE XIV. AMERICAN FAMILY (0)
The bill concerns manufactured home regulations. It does not address marriage, parental authority, abortion, child welfare, or other family policy matters covered by this metric.
ARTICLE XV. OLDER AMERICANS (0)
This bill makes no changes to programs, services, or policies specifically affecting older Idahoans. Its scope is limited to manufactured home definitions and siting rules applicable to all residents.
ARTICLE XVI. LAW AND ORDER WITH JUSTICE (0)
The bill addresses building codes and zoning for manufactured homes. It has no connection to criminal justice, firearms, law enforcement, drug policy, or the judiciary.
ARTICLE XVII. NATIONAL DEFENSE – SECURING THE BORDER (0)
This bill concerns residential housing regulations in Idaho. It has no provisions related to national defense, border security, military affairs, or veterans.
ARTICLE XVIII. ELECTION OF JUDGES AND IDAHO SUPREME COURT JUSTICES (0)
The bill amends manufactured home statutes and has no connection to judicial elections, judicial appointments, or constitutional interpretation by Idaho courts.
ARTICLE XIX. RELIGIOUS LIBERTY (0)
This bill addresses manufactured home definitions and siting standards. It contains no provisions affecting religious exercise, conscience protections, or the free expression of religion.