Presentation

City of Mesa — Planning and Zoning Board - Study Session (2026-07-22)

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Discuss the Proposed 
Amendments to the Mesa 
Historic Preservation Design 
Guidelines
Agenda Item: 3-b  
Planning & Zoning Board
Study Session – July 22, 2026

Historic Preservation
Design Guidelines
Background
Existing Historic Preservation Design Guidelines - 2001
• Only 2 locally-designated Historic Districts at the time
• 218-page document includes several topics not regulated by the MZO
• Hard copy document (scanned and on website)
New design guidelines reflect changing historic resources
• 6 of the 8 locally-designated Historic Districts and 8 of the 11 locally-
designated Historic Landmarks added since 2001
• Wider Distribution; New guidelines can be printed, but will exist 
primarily as a digital document
• PDF format allows for key word searches and embedded links improve 
user-friendliness

Historic Preservation
Design Guidelines
Purpose
Provide guidance for planning, designing, and undertaking 
improvements to Mesa’s historic properties
• Use by property owners/designers/contractors
Improve the design quality of future developments and growth
Assist City staff and the HPB in decision making
• Establishes a basis for determining the appropriateness of 
construction projects
Increase the overall public awareness of Mesa’s historic resources
Protect property values in the districts by discouraging poorly-designed 
and inappropriate projects

Historic Preservation
Design Guidelines
Design Guideline Organization
Chapter 1 – Introduction
Chapter 2 – Certificates of Appropriateness
Chapter 3 – Guidelines for Preservation, Restoration & Rehabilitation
Chapter 4 – Guidelines for Additions
Chapter 5 – Guidelines for New Construction
Chapter 6 – Guidelines for Historic Signage
Chapter 7 – Historic Building Types & Architectural Styles
Appendices:
A, B, C, D, E

Historic Preservation
Design Guidelines
Design Guideline Organization
Appendices
A – City of Mesa Historic Preservation Program
B – Certificate of Appropriateness Review Standards
C – Character Defining Features / Definitions
D – Locally Designated Historic Districts & Historic Landmarks
E – Heritage Neighborhoods

Historic Preservation
Design Guidelines
Chapter 1
Introduction
Describes the purpose for creating the document:
• Assist staff and the Historic Preservation Board in decision making
• Promote appropriate changes to maintain historic character
• Supplement the historic preservation regulations in MZO
Outlines the many uses for the document including:
• Evaluating real estate
• Preparing for home improvements
• Design review guidance 
How to use the document

Historic Preservation
Design Guidelines
Chapter 2
Certificates of Appropriateness
What is subject to as COA (when is a COA needed)
Why COAs are not needed for properties exclusively on the National 
Register of Historic Places
Encourages the use of the guidelines for non-locally-designated 
properties
Provides contact information for the Mesa Historic Preservation 
Office
Details the Secretary of the Interior’s Standards for the Treatment of 
Historic Properties and the Standards for Rehabilitation, which is the 
basis of our code.

Historic Preservation
Design Guidelines
Chapter 3
Guidelines for Preservation, Restoration & Rehabilitation
Provides Guidelines for the following topics:
• Character-Defining Features
• Materials and Finishes
• Windows
• Doors and Entries
• Porches, Decks, and Balconies
• Historic Roofs
• Exposed Foundations
• Landscaping and Fences
• Painting

Historic Preservation
Design Guidelines
Chapter 4
Guidelines for Additions
Provides Guidelines for the following topics:
• Addition Placement
• Addition Design
• Roofs
• Dormers
• Doors and Windows
• Porches
• Fences and Walls
• Mechanical Equipment and Solar Panels

Historic Preservation
Design Guidelines
Chapter 5
Guidelines for New Construction
Provides Guidelines for the 
following topics:
• Building Height, Scale, 
Materials
• Building Setbacks
• Roof Shape and Materials
• Doors and Windows: 
Orientation/Proportions
• Porch Design
• Accessory Dwelling Units: 
Location/Scale/Design
• Fences and Walls
• Mechanical Equipment and 
Solar Panels

Historic Preservation
Design Guidelines
Chapter 6
Guidelines for Historic Signage
Provides Guidelines for the 
following topics:
• Compatible Signage and 
Streetscape Character
• Neon Signs
• Signage Types
• Guidelines for Preservation, 
Rehabilitation, and Design

Historic Preservation
Design Guidelines
Chapter 7
Historic Building Types & Architectural Styles
Highlights common residential building types and architectural 
styles found in Mesa
Each building type/style features a description and a list of typical 
features
Photos of Mesa homes provided as illustrative examples of each 
building type/style

Historic Preservation
Design Guidelines
Appendix A
City of Mesa Historic Preservation Program
Background of the Mesa Historic Preservation 
program
Brief overview of:
• City of Mesa Historic Districts and Historic 
Landmarks
• Heritage Neighborhood Recognition Program
• Historic and Cultural Resource Surveys
• Regulatory Compliance
Importance of Historic Preservation for the 
Future

Historic Preservation
Design Guidelines
Appendix B
COA Review Standards
Standards for Alteration, 
Rehabilitation, and/or Additions 
to Existing Structures
Standards for Detached New 
Construction
Criteria for Demolition

Historic Preservation
Design Guidelines
Appendix C
Character Defining Features / Definitions
Physical elements that convey a property's historic identity 
and significance
Express the history, architecture, and cultural significance 
that make a building unique 
Importance of Retaining original materials, design, and 
craftsmanship to preserve a property's integrity and sense of 
place
Help guide thoughtful changes to ensure that repairs, 
alterations, and additions are compatible with the historic 
resource

Historic Preservation
Design Guidelines
Appendix D
Historic Districts & Historic Landmarks
Discussion of Mesa’s historic context
• Early origin 
• Euromerican Settlement 
• Growth and Expansion
• Suburban Mesa in the 1970s
Brief overview of:
• Local Historic Districts
• Local Historic Landmarks

Historic Preservation
Design Guidelines
Appendix E
Heritage Neighborhoods 
Created to help recognize and give status to neighborhoods in 
Mesa that have a unique history that do not have historic 
district designation
Honorary recognition does not explicitly impose additional 
regulations 
The Washington Escobedo Neighborhood and the Lehi 
Neighborhood are currently Mesa’s only Heritage 
Neighborhoods

Historic Preservation
Design Guidelines
Historic Preservation Board Comments
Comments from the Historic Preservation Board have been 
overwhelmingly positive.  All substantive comments and issues have 
been addressed previously.  Many of the recent comments have been 
editorial.  Additional comments from the last HPB meeting include:  

Adding captions to all photos and images

Reference to current building code

Refer to existing HP guidelines

Fencing/wall/mechanical equipment requirements 

Adding information on Heritage Neighborhoods in Appendix

Minimum application/drawing requirements for projects 

Outreach with stakeholder organizations
Staff continues to edit the document based on all feedback.

Historic Preservation
Design Guidelines
Design Guidelines Outreach
Outreach Dates:
• HPB Study Session – Aug. 01, 2023
• Public Meeting – Aug. 24, 2023
• HPB Meeting – May 05, 2026
• HPB Meeting – Jul. 07, 2026
• Public Meeting – Jul. 21, 2026
Consultation:
• State Historic Preservation Office
• Tribal Historic Preservation Offices
Additional Review:
• Mesa Preservation Foundation
• Mesa City Website (mesaaz.gov/hp)
Required Review:
• Historic Preservation Board
• May 05 (discussion)
• Jul. 07 (discussion)
• Aug. 04 (action)
• Planning & Zoning Board
• Jul. 22 (study session)
• Aug. 26 (action)
• Mesa City Council
• Sep. (introduction) 
• Oct. (action)

Historic Preservation
Design Guidelines
Questions & Discussion
For additional information, please visit:
mesaaz.gov/hp