Mesa City Council: Citywide historic-preservation code overhaul (Ord. 6036) replaces 3 chapters, adds archaeology review
Mesa City Council was asked to adopt Ordinance No. 6036, a comprehensive rewrite of the city's historic-preservation zoning code spanning Chapters 23, 44, 66, 74, and 87 of the Mesa Zoning Ordinance, consolidating overlay districts, extending demolition-delay periods from six months to one year, and adding a new archaeological-resources review process.
Mesa Citywide Historic-Preservation Code Overhaul (Ord. 6036) Extends Demo Delay to One Year, Adds Archaeology Review
The Project
| Element | Detail |
|---|---|
| Ordinance | No. 6036 |
| Jurisdiction | City of Mesa (Citywide) |
| Chapters amended | 23, 44, 66, 74, 87 — Mesa Zoning Ordinance Title 11 |
| Chapters repealed & replaced | Ch. 23 (Historic & Landmark Overlay Districts → Historic Preservation Overlay); Ch. 44 (Historic Signs → Historic Signs); Ch. 74 (Historic District & Historic Landmark Procedures → Historic Preservation Procedures) |
| Chapters modified | Ch. 66 (Historic Preservation Board authority/quorum); Ch. 87 (new definitions) |
| New regulatory section | Archaeological Resources review process |
| Demolition delay change | 180 days → 1 year for properties in an approved or proposed Historic Preservation Overlay |
| Effective date (proposed) | 30 days after Council adoption |
| HPB recommendation | Adoption — 6-0 (September 1, 2026) |
| P&Z recommendation | Adoption — 7-0 (September 9, 2026) |
| Staff recommendation | Adoption |
Who's Behind It
The amendments were developed internally by Mesa Development Services and Planning Division staff over a multi-year process. Key staff authors include Nana Appiah (Development Services Director), Mary Kopaskie-Brown (Planning Director), Rachel Phillips (Assistant Planning Director), Matthew Kriegl (Historic Preservation Officer), and Meghan Eaton (City Archaeologist), with oversight from Assistant City Manager Marc Heirshberg. External coordination involved the Arizona State Historic Preservation Office (SHPO), the Salt River Pima-Maricopa Indian Community (SRPMIC) Tribal Historic Preservation Office, the Gila River Indian Community (GRIC) Tribal Historic Preservation Office, and the Mesa Preservation Foundation.
Staff's Analysis
Staff framed the amendments as a clarity-and-consolidation effort rather than a substantive expansion of preservation restrictions, noting that Mesa's existing regulations were scattered across multiple chapters and required applicants and property owners to navigate several disconnected sections of the Zoning Ordinance. The core reorganization merges the former Historic District Overlay and Historic Landmark Overlay into a single Historic Preservation Overlay designation, eliminating dual-track administration without changing underlying protections.
The most operationally significant substantive change is the demolition-delay expansion. Under the current code, the Historic Preservation Board's denial of a demolition request triggers a mandatory six-month stay. The proposed ordinance doubles that to one full year, applicable to properties within both approved and proposed Historic Preservation Overlays. Staff attributed the change to a coordinated request from the HPB, SHPO, and neighborhood residents, arguing the longer window creates more meaningful opportunity to identify preservation alternatives.
The new Archaeological Resources section establishes Mesa's first codified process for cultural-resource compliance. For private development on city-owned or city-controlled land, developers must consult with the City Archaeologist prior to excavation; the Archaeologist may conduct an archaeological assessment to determine whether protected cultural materials are present under applicable local, state, or federal law. The section also directs private developers to coordinate with SHPO, THPOs, and other qualified professionals as appropriate.
Chapter 87 gains seven formally defined terms—Certificate of Appropriateness, Historic District, Historic Landmark, Historic Preservation Overlay, Historic Resource, Historically Designated Sign, and State of Disrepair—that were previously used in the code without definition. Chapter 66 changes clarify that the Historic Preservation Officer (or designee) serves as Secretary to the HPB and that a quorum consists of a minimum of four members.
Citizen Participation
The process spanned more than three years. Staff first presented a draft to the HPB in August 2023 and held a community outreach meeting that same month. A second round of HPB discussion occurred in September 2023, at which the Board recommended approval with specific requested changes (including the one-year demolition delay for existing Historic Districts and 180-day delay for the Supplemental Inventory List). The process stalled before reaching the P&Z Board and was revised; staff returned in July 2026 with an updated draft, held a second community outreach meeting on July 21, 2026 (which drew no opposition), and presented at a P&Z Study Session on July 22, 2026. Both the HPB (September 1, 2026) and P&Z Board (September 9, 2026) voted unanimously in favor before the item advanced to Council.
What Happened at the Meeting
No meeting recording summary was available at publication. The item was scheduled as a regular/action agenda item (Item 7-b) at the October 26, 2026 Mesa City Council meeting. The Council was asked to adopt Ordinance No. 6036.
Key Provisions
- Single Historic Preservation Overlay: Replaces the separate Historic District and Historic Landmark Overlay classifications with one unified zoning designation.
- Demolition delay: Extended from 180 days to one full year for properties in an approved or proposed Historic Preservation Overlay.
- Certificate of Appropriateness (COA): Clarified triggers, exemptions for ordinary maintenance, defined review timelines, and coordination with building-permit issuance; emergency repairs may receive a COA concurrently with the associated building permit.
- Duty to Maintain: Strengthened provision discouraging demolition by neglect of designated properties.
- Archaeological Resources: New code section requiring developer consultation with City Archaeologist, SHPO, and THPOs before excavation on city-owned land.
- Historically Designated Signs: Moved from Ch. 44 into Ch. 74 with updated eligibility criteria, restoration requirements, and revocation procedures.
- Supplemental Inventory List: Formally established to track resources determined eligible for the Mesa Historic Property Register but not yet designated.
- Designation criteria: Aligned with the Secretary of the Interior's standards framework.
- HPB quorum: Codified at a minimum of four members; Historic Preservation Officer designated as Board Secretary.
- Effective date: 30 days after Council adoption.
What's Next
If adopted as recommended, Ordinance No. 6036 takes effect 30 days after the date of Council approval. Applicants, property owners, and preservation professionals operating within Mesa's historic overlay areas—or proposing demolition of overlay-designated properties—will need to familiarize themselves with the consolidated Chapter 74 framework, the extended demolition-delay timeline, and the new archaeological-resources consultation requirements.
Why notable: This is a significant citywide rewrite of Mesa's historic-preservation regulatory framework, touching five zoning-code chapters simultaneously; the doubling of the mandatory demolition-delay period to one full year directly affects development economics for any project involving contributing or designated historic structures, and the new archaeological-resources review requirement introduces a formal consultation mandate that did not previously exist in the Mesa Zoning Ordinance.
Source: Mesa City Council Agenda Item 7-b, October 26, 2026; City Council Staff Report — Mesa Zoning Ordinance Text Amendments (Updated Historic Preservation Procedures), prepared by Development Services and Planning Division staff.