Effective Date
New codes go into effect on January 8, 2026, and apply to permit applications submitted on or after that date. Projects already submitted, under review, or under construction will NOT be affected.
Early Use of 2024 Codes
Builders may choose to design projects using the 2024 codes before formal adoption. These early submissions will be processed via the code modification process with no associated fee, consistent with past transitions.
Single-Family Standard Plans
Existing 2018 code approved standard plans may be updated to the 2024 code by submitting an addendum cover sheet for each plan. This must include references to the 2024 code, an index, notes, and modification details. Full plan sets are not required, as changes between the 2018 and 2024 codes are minor.
Commercial Projects in Design
Projects designed under the 2018 codes but not submitted before the 2024 code takes effect may be submitted via fee-waived code modification for up to 90 days after the effective date. After that, compliance with the 2024 code is required.
Custom Homes
Plans submitted on or after the 2024 code effective date must comply with the 2024 code. The differences from the 2018 code are minimal and should not cause significant delays.
Subdivision Projects (Standard Plans)
Each lot in subdivisions will be reviewed individually. As a result, some homes in a subdivision may be permitted under the 2018 code while others fall under the 2024 code. Standard plans approved under the 2018 IRC will be valid for 6 months after the adoption of the 2024 IRC. Only sheets requiring changes to comply with the 2024 IRC will need to be submitted to update the standard plans. A full plan sets will not be required.