Building Codes and Local Amendments

The Town of Oro Valley adopted the 2024 International Building Codes and the 2023 National Electric Code with local amendments on September 3, 2025, with an effective date of January 1, 2026 (Exception: 2018 IECC)

 

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The codes are available for viewing through the International Code Council online library and the National Fire Protection Association (NFPA). Local amendments are available for viewing in the sections below.

Each code has been amended to accommodate the Town of Oro Valley. Make sure your plans comply with currently adopted codes.

Town of Oro Valley – Building Code Transition Policy

Effective January 1, 2026 - Adoption of 2024 Codes, consisting of the 2024 Building Codes & 2023 National Electrical Code (Exception: 2018 IECC)

This policy outlines how building permit applications, permits, and related actions will be processed in relation to the adoption of the 2024 Codes.

Application Permit Status

Effective Code

Notes

New permit application received prior to January 1, 2026

   2018

Application will be reviewed and grandfathered under the 2018 Codes, provided the submittal is complete (no missing required elements) and remains in an active/non-expired status.

New permit application received on or after January 1, 2026

   2024

Application will be reviewed under the 2024 Codes.

Permit issued for an application received prior January 1, 2026

   2018

Approval under the 2018 Codes is grandfathered, even if the permit is issued after the January 1, 2026 effective date, provided the permit remains in an active/non-expired status.

Expiration or abandonment of a permit on or after January 1, 2026 that was approved under the 2018 Codes

   2024

Updates to comply with the 2024 Codes are required to re-activate an expired or abandoned permit. Re-activation under the 2018 Codes may be considered at the Building Official’s discretion (e.g., projects with completed inspections prior to expiration).

Revision(s) to a permit originally issued under the 2018 Codes

   2018

Revisions will be reviewed and grandfathered under the 2018 Codes, even if submitted after the January 1, 2026 effective date, provided the permit remains in an active/non-expired status.

Expiration extension request(s) for a permit reviewed and approved under the 2018 Codes

   2018

If the permit has not been issued, one 90-day extension may be granted without requiring updates to the 2024 Codes. If the permit has been issued, one 180-day extension may be granted without required updates to the 2024 Codes. Subsequent extension requests under the 2018 Codes may be considered on a case-by-case basis at the discretion of the Building Official

 

Definitions and Notes:

  • Grandfathered:  A project may remain under the previously adopted 2018 Codes if it was submitted prior to January 1, 2026, and has remained in an active/non-expired status.
  • Active:  The permit or application has not expired or been abandoned in accordance with Town regulations.
  • The Building Official retains discretion to determine code applicability in unique or transitional circumstances.

 

Adopting Local Amendments to the Building Code is authorized by Ordinances 25-05 and 25-06.