HB 2384 Missouri House · 2026 Regular Session

Creates provisions restricting political subdivisions from imposing requirements that threaten affordability of developments or improvements of property

HB 2384 prohibits counties and municipalities from requiring building practices that threaten affordability for residential and commercial properties. Specifically, it bans local governments from mandating sustainable, energy-efficient, or "green" building standards exceeding the 2009 International Residential Code (IRC) or 2009 International Energy Conservation Code (IECC) for single- or two-family homes, condos, townhouses, apartments, or commercial buildings. The bill also requires local governments to approve or deny building permit requests within 30 days, with automatic approval if no response is given, and sets specific safety conditions for single-exit residential buildings. This directly affects developers, builders, and homeowners seeking construction or renovation approvals, while limiting local code enforcement authority.

Bill status passed 3 of 5 stages cleared

Introduction

Dec 2025

Committee Review

Apr 2026

House Passage

Feb 2026

Senate Passage

Governor

Introduced Dec 11, 2025 Last action May 7, 2026

Maddy AI version diff · 3 comparisons

What changed between versions

Perfected → Senate Committee Substitute · 6 edits

MODERATE

The bill was revised from a House version to a Senate Committee Substitute, which updated formatting and significantly expanded the scope of energy efficiency protections. The most important change is that the ban on mandatory energy standards now applies to a wider range of buildings, including detached homes and multi-unit buildings up to three stories, rather than just single-family dwellings. Additionally, the bill introduced a new section requiring local governments to approve or deny building permit requests within 30 days, with specific rules for explaining denials.

Scope change

The bill's scope expanded from protecting only one- or two-family dwellings to also protecting multiple single-family dwellings and Group R-2, R-3, and R-4 buildings that are three stories or less in height.

REQUIREMENT

The list of protected building types was expanded to include detached one- or two-family dwellings, multiple single-family dwellings, and multi-unit buildings up to three stories, broadening the protection against mandatory energy efficiency standards.

TECHNICAL

The referenced energy codes were updated from the 2009 International Residential Code and International Energy Conservation Code to the 2012 versions.

The explanatory note regarding bold-faced brackets indicating non-enacted matter was removed.

TIMELINE

A new requirement was added mandating that political subdivisions approve or deny building permit requests within 30 calendar days.

ENFORCEMENT

New rules were added requiring written denials to include specific reasons, such as detailed descriptions of design professional errors or citations of violated code provisions.

DEFINITION

The definition of 'Community' was removed and replaced with new definitions for 'Political subdivision' and 'Request' in a new section.

Floor votes

How they voted

This bill passed the House by voice vote (no roll call recorded).

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Apr 28, 2026

Upper · Passed

SCS Reported Do Pass (S)

upper

Apr 20, 2026

Upper · Passed

SCS Voted Do Pass (S)

upper

Feb 26, 2026

Committee

Second read and referred: Local Government, Elections and Pensions(S)

upper

Feb 16, 2026

Lower · Passed

Third Read and Passed (H) - AYES: 92 NOES: 61 PRESENT: 0

lower

Feb 11, 2026

Lower · Passed

Perfected with Amendments (H) - HA 1, adopted

lower

Feb 11, 2026

Lower · Passed

HCS Adopted (H)

lower

Feb 9, 2026

Lower · Passed

Reported Do Pass (H) - AYES: 9 NOES: 3 PRESENT: 0

lower

Feb 9, 2026

Lower · Passed

Voted Do Pass (H)

lower

Feb 3, 2026

Committee

Referred: Rules - Legislative(H)

lower

Jan 28, 2026

Lower · Passed

HCS Reported Do Pass (H) - AYES: 7 NOES: 3 PRESENT: 0

lower

Jan 27, 2026

Lower · Passed

HCS Voted Do Pass (H)

lower

Jan 8, 2026

Committee

Referred: Commerce(H)

lower

Dec 11, 2025

Introduced

Prefiled (H)

lower

1 primary · 1 co-sponsor