Presentation

City of Mesa — City Council (2026-07-20)

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2026 Zoning Code Refinement 
Text Amendments
City of Mesa
Mary Kopaskie Brown, Planning Director
Rachel Phillips, Assistant Planning Director
Sean Pesek, Senior Planner

DEVELOPMENT SERVICES – PLANNING DIVISION
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Code Refinement – What’s Being Changed?
•
Updates to definitions (Chapters 86 and 87)
•
Minor changes to certain land use tables
•
Minor adjustments to development standards

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Code Refinement – Definition Updates
Chapter 86
• Boarding House - Clarified that an ADU may not be used as a Boarding 
House
• Home Occupations – Updated definition to be consistent with Chapter 
87’s Home Occupation definition
• Skilled Nursing Facility – Reclassified from Residential Use to Public 
and Semi-Public Use
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Code Refinement – Definition Updates
Chapter 86
•
Live/Work Unit - Revised to emphasize residential use while 
allowing permitted non-residential activities.
•
Indoor Warehousing and Storage – Revised to focus on storage, 
distribution, and handling activities, including certain hazardous 
groups (H-1 or H-2) if the number of control areas does not exceed 3.
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Code Refinement – Definition Updates
Chapter 86
• Hazardous Material Warehousing and Storage (NEW) 
Facilities exceeding H-1 or H-2 thresholds or; 
Containing more than three control areas as regulated by Fire Code. 
Chapter 87
• Updated terminology from “Lot Line” to “Property Line” throughout, 
including Front, Rear, and Side references.
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Table 11-7-2 – Land Use Table for Employment Districts
• Corrected footnote references for loading and unloading 
requirements associated with Large Commercial Development and 
General Retail Sales.
• Added Hazardous Material Warehousing and Storage to the use 
table as an allowed use with a Conditional Use Permit (CUP) in the LI, 
GI, and HI Districts. 
Code Refinement – Land Use Table Updates
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Code Refinement – Changes to Development Standards
Section 11-5-4(A)(2) – Entryway Monumentation Feature
• Clarified that subdivisions providing only one access point are only 
required to provide one monumentation feature. 
Section 11-5-4(G)(2) – Minimum Use of Primary Materials
• Clarified that material quantity requirements apply to façades facing both 
public and private streets, alleys, open space, and parks. 
• Clarified that the 85% maximum material limitation applies to each publicly 
visible façade.
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Code Refinement – Changes to Development Standards
Section 11-30-6 – Lots and Subdivisions
• Clarified that lots within a shared commercial or office development 
can use internal access and are not required to front a public or private 
street if cross-access easements are in place.
Section 11-30-8 – Pedestrian Connections
• For required separation between pedestrian walkway and auto lane, 
removed option for bollards (safety concern).
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Code Refinement – Changes to Development Standards
Section 11-30-9 – Screening of Mechanical Equipment
• Added allowance for the use of vinyl artistic wrapping to screen 
electrical transformers in lieu of physical screening
• Requires approval from the Planning Director or designee
Section 11-30-17 – Detached Accessory Buildings
• Reduced the minimum required separation from 6 feet to 5 feet.
• Clarified that the separation standard applies to the primary residence, 
ADUs, and other detached accessory structures – regardless of size.
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Code Refinement – Changes to Development Standards
Section 11-31-3 – Accessory Dwelling Units
• Clarified that properties with an existing single residence may have 
one attached ADU and one detached ADU regardless of zoning 
district, provided the residence remains the principal use of the 
property.
• Clarified that an ADU cannot be used as a boarding house.
• Introduced a min. 5’ separation standard from the primary residence, 
other ADUs, and detached accessory buildings.
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Code Refinement – Changes to Development Standards
Sections 11-31-36 & 11-31-37 – Substation Screening
•
For Data Centers: Revised substation screening standards to require 
upper screening elements to be between 50% and 75% opaque.
•
For BESS Facilities: Revised substation screening standards adjacent 
to public rights-of-way to require upper screening elements to be 
between 50% and 75% opaque.
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Code Refinement – Changes to Development Standards
Section 11-34-2 – Manufactured Home/RV Accessory Structures
•
RV Parks/Subdivisions + MH Parks/Subdivisions: Excluded covered 
parking areas from the  accessory structure size maximum
•
MH Parks: Removed requirement for internal opening to the MH
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Code Refinement – Changes to Development Standards
Section 11-67-4 – Written Protests Requiring Supermajority Vote
•
Reorganized and clarified written protest procedures and mandatory 
supermajority voting requirements for City Council actions.
•
Clarified that government-owned property is excluded when 
calculating the 20% written protest threshold.
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Public Outreach & Notification
May 6
May 7
May 27
June 15
June 18
June 6
TA Draft 
emailed 
to 
Stake-
holders 
P&Z 
Board
June 24
Public 
Hearing 
Email 
Reminder
Virtual 
Open 
House
News-
paper Ad
Website 
Updated
Draft TA 
Posted to 
Website
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Questions?
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