CPA2023014 BOS REPORT_PART1.PDF

Maricopa County — Formal (2023-12-06)

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December 6, 2023 
CPA2023014 
Page 1 of 2 
 
 
 
 
Report to the Board of Supervisors 
Prepared by the Maricopa County Planning and Development Department 
 
Board Hearing Date: 
December 6, 2023 
 
Case #/Title:   
 
 
CPA2023014 – White Tank Grand Avenue Area Plan 
 
Supervisor Districts: 
4 & 5 
 
Initiator:  
Staff 
 
Request: 
Approval of the White Tank Grand Avenue Area Plan (CPA case 
approval is by Resolution) 
 
Site Location: 
General area plan boundaries: Yavapai-Maricopa County Line 
(north), I-10 and Yuma Rd. (south), 99th Ave and Loop 101 (east), 
and Vulture Mine Rd. and the White Tank Mountains Regional Park 
(west) 
 
Site Size: 
Approx. 727 sq. mi. 
 
Additional 
Comments: 
The White Tank Grand Avenue Area Plan was last updated in 2000. 
Much has changed in the planning area since then, including a 
reduced planning area due to annexations, the buildout of Peoria, 
Surprise and other communities, new industrial development along 
Loop 303, and additional population growth. These changes 
necessitated an update to the plan. 
 
 
To reach as many citizens, community organizations, government 
agencies, interest groups and other stakeholders as possible, 
Maricopa County held four public workshops of which two were in-
person and two were virtual. The first in-person workshop was held 
in Sun City West to accommodate residents of Sun City and Sun 
City West. The second in-person workshop was held at Morristown 
Elementary to accommodate residents who live in rural areas of the 
northwest valley.  Staff also convened a Plan Advisory Committee 
(PAC), developed a web page and distribution list, and met directly 
with stakeholder groups in outreach interviews.  In combination, 
these methods allowed participants an opportunity to share ideas, 
thoughts recommendations, and feedback during plan preparation. 
As a result, staff believes that the final product is truly 
representative of the needs and wishes of the overall community. 
 
The plan furthers the three core principles from the county’s 
comprehensive plan which include: decisions should support 
implementation of Maricopa County’s mission statement and

December 6, 2023 
CPA2023014 
Page 2 of 2 
strategic priorities; maintain a disciplined approach where 
comprehensive plan policies and growth-related decisions are 
understandable, measurable, consistent, practical, and promote 
efficiency with land use decisions being based on these factors; 
and, avoid future problems by carefully considering past decisions. 
 
The plan also identifies five strategic priorities including: improving 
congested and unsafe intersections; protecting scenic corridors, 
views, and open spaces; limiting light pollution to protect dark 
skies; discourage development that is incompatible with Luke Air 
Force Base’s (LAFB) mission and operations; and, ensuring that 
development in the County has the appropriate services for water, 
wastewater, education, and public safety. 
 
Staff believes that the core principles and strategic priorities helped 
develop a balanced plan which considers growth needs in tandem 
with the existing patterns of development. 
 
Commission  
 
Recommendation: 
On 11/16/2023 the Commission voted 6-0 to recommend approval 
of CPA2023014. 
 
 
Presented by: 
 
Adam Cannon, AICP, Senior Planner 
Reviewed by: 
 
Darren Gérard, AICP, Planning Manager   
 
Attachments: 
 
11/16/23 P&Z Packet (231 pages)  
 
 
11/16/23 P&Z Presentation (44 pages) 
 
 
11/16/23 P&Z Handout (3 pages) 
 
 
Resolution of Adoption (2 pages) 
 
 
 
 
Note: 
11/16/23 Draft P&Z Minutes are not available as of the writing of this report, but can be 
provided upon request later when available.

CPA2023014 
Page 1 of 6 
 
 
Report to the Planning and Zoning Commission 
Prepared by the Maricopa County Planning and Development Department 
 
 
Case: 
CPA2023014 – White Tank Grand Avenue Area Plan 
 
 
 
 
Hearing Date: 
November 16, 2023 
 
Supervisor Districts: 
4 & 5  
 
 
  
 
Applicant: 
Staff-Initiated  
 
Request: 
Approval of the White Tank Grand Avenue Area Plan  
 
  
 
Site Location: 
General area plan boundaries: Yavapai-Maricopa County Line (north), I-10 
and Yuma Rd. (south), 99th Ave and Loop 101 (east), and Vulture Mine Rd. 
(west)  
 
  
Site Size: 
Approx. 727 sq. mi. 
 
Recommendation: 
Approve

CPA2023014 
Page 2 of 6 
Overview: 
 
1. 
In 2016 the Board of Supervisors (Board) adopted the Maricopa County Vision 2030 
Comprehensive Plan which serves as the comprehensive plan for the entire unincorporated 
territories of the County.  The comprehensive plan addresses state statute requirements and 
implements core principles and strategic priorities to assist decision-makers in making decisions 
about land use and the overall long term development patterns in the county. Vision 2030 also 
contains various sub-area plans which address the unique needs of specific areas within 
unincorporated Maricopa County.   Planning staff periodically analyzes these long-range area 
plans to ensure they accurately reflect the regions they serve. The most recent adoption occurred 
in 2019 when the Board adopted a revised Daisy Mountain New River Area Plan to amend and 
replace the existing New River Area Plan.  The White Tank Grand Avenue Area Plan has undergone 
a similar analysis and update process, which is the subject of this staff report. Staff is 
recommending that the Commission recommend approval of the updated White Tank Grand 
Avenue Area Plan based on the process and results outlined herein.   
 
2. 
While the existing White Tank Grand Avenue Area Plan is still relevant in many ways, many things 
have changed since its adoption in 2000 that necessitate an update.  First, vast portions of 
unincorporated county territory within the plan have since been annexed into municipalities such 
as Surprise, Peoria and Buckeye among others.  Second, rapid growth is expected to continue due 
to major industrial and residential developments, particularly in the Grand Avenue region and in 
areas near the Loop 303. Lastly, an update to the White Tank Grand Avenue Area Plan will conform 
to the currently adopted Comprehensive Plan principles and land use designations. 
 
3. 
As noted, the White Tank Grand Avenue Area Plan is a sub-area plan of the Comprehensive Plan, 
and as such includes the same elements (i.e. planning-related topics): 
 
• 
Land Use – ARS requires a land use element that plans for a variety of land uses.  The land 
use plan is required to include a map and categories for land uses with defined densities and 
intensities.  In addition, the land use element is required to specify programs and policies for 
compact form development, consider air quality and access to solar energy, and policies to 
address a broad variety of land uses. Lastly, the element is required to identify aggregate 
sources and policies to preserve aggregates and policies to avoid incompatible land uses in 
proximity to aggregate sources. 
 
• 
Transportation – ARS requires a transportation element that plans for the general location 
and extent of freeways, streets and multimodal transportation. 
 
• 
Environment – ARS requires an environmental element that contains analysis, policies and 
strategies to address any effects of plan elements on air quality, water quality and natural 
resources. 
 
• 
Economic Growth – An economic growth element is not required by ARS and is an optional 
element within the Comprehensive Plan.  This element is included for consistency with the 
Comprehensive Plan.  Included in the element are economic analysis, projections, goals and 
policies to promote economic growth. 
 
• 
Growth Areas – ARS requires a growth areas element that specifically identifies growth areas 
and whether those areas are suitable for transportation and infrastructure improvements 
designed to support a mix of uses. The growth areas element also must include policies and 
implementation strategies to make transportation more efficient, make infrastructure 
expansion more economical and to conserve natural resources.  The growth areas element 
coordinates infrastructure funding with development activity.

CPA2023014 
Page 3 of 6 
• 
Open Space – ARS requires an open space element that plans for acquisition and preservation 
of open space including an inventory of areas, recreation resources and access points to said 
resources. The open space element also includes policies and implementation strategies to 
promote a regional system of integrated open spaces and recreation resources. 
 
• 
Water Resources – ARS requires a water resources element that inventories available surface 
water, groundwater and effluent supplies.  The element is also required to project and analyze 
the demand for water generated by future growth and how the water supplies will serve the 
future growth. 
 
• 
Energy – ARS requires an energy element that encourages and provides incentives for 
efficient use of energy.  The element also identifies policies and practices for greater use of 
renewable energy. 
 
• 
Cost of Development – ARS requires a cost of development element to identify policies and 
strategies the county will use to require private development to pay its fair share toward the 
cost of infrastructure and facility needs generated by new development.   
 
4. 
In addition to each element, the updated area plan includes an executive summary for quick 
reading, guiding principles and strategic priorities, an overview of existing conditions, goals and 
policies for each element, and a summary of the significant public outreach program that shaped 
this plan.  
 
5. 
Given length of time since the last update there are significant and meaningful changes from the 
previous plan. Some of the more notable changes include: 
 
• 
A 22% reduction in the size of the planning area mainly due to annexations by the Cities of 
Surprise, Peoria and Buckeye; 
• 
Redesignating existing land uses to those currently found in the Comprehensive Plan. This is 
especially important because area plan land uses must conform to the land use designations, 
terminology, and definitions within the Comprehensive Plan;  
• 
Expanding the planning area boundary northwest to Vulture Mine Road and identifying new 
growth areas to plan for future near-term growth (approximately 10-year timeframe). Areas 
that are not identified as growth areas are expected to continue the generally rural, low-density 
land use pattern that currently exists.    
 
6. 
Through extensive public outreach, participants identified several important strategic priorities 
that not only shape the goals and policies in this plan, but also guide decisions regarding future 
growth. These principles include: 
 
• 
Improve congested and unsafe intersections; 
• 
Protect scenic corridors, views and open spaces; 
• 
Limit light pollution to protect dark skies; 
• 
Discourage development that is incompatible with Luke Air Force Base’s mission and 
operations; and, 
• 
Ensure that development in the County has the appropriate and necessary level of services 
for water, wastewater, and public safety.

CPA2023014 
Page 4 of 6 
Public Participation 
 
7. 
To reach as many citizens, organizations, and other stakeholders as possible, staff and the 
project team created a citizen’s participation program. The following is a brief summary of the 
outreach efforts: 
 
• 
The project team conducted four community meetings between July and October of 2023 to 
identify the issues and concerns of area residents. These community meetings were well 
attended as over 145 attendees across meetings had an opportunity to share their thoughts 
and ideas.  The first virtual-format meeting introduced the area plan update to attendees. The 
project team held its second meeting in-person at the Palm Ridge Recreation Center in Sun 
City West, and its the third meeting in-person at the Morristown Elementary School to meet 
with rural residents.  A fourth and final community workshop was held in October to seek final 
input and changes to the draft plan. To help ensure effective participation staff used various 
formats for the meetings, including presentations, open Q&A and live interactive “Menti” polls. 
In addition, staff created an email list of 300 individuals and organizations who were notified 
of the workshops, and of ways to participate in the process.  
 
• 
The project team also convened a Plan Advisory Committee (PAC) that consisted of area 
stakeholder representatives including Commissioner Hernandez, staff from Luke Air Force 
Base, various State and local governments, and the Homebuilders’ Association, among 
others. These meetings supported and informed the development of the plan, particularly in 
regard to the strategic priorities.  
 
• 
In addition to the community and PAC meetings, the project team invited select individuals to 
participate in one-on-one interviews with contributing partners such as the Toyota Proving 
Grounds, CAP, local governments, State Land Department, and others.  These interviews 
assisted the team in identifying more precise land use needs and input on the direction of the 
plan.   
 
• 
Information about community workshops, ways to participate in plan preparation, and the 
draft plan were posted on the Planning and Development Department’s webpage for public 
viewing. The draft plan was commented on directly through a web platform called “Konveio”. 
This website was updated periodically as new information became available to ensure 
relevance, accuracy, and reflect community needs. Staff noticed the distribution list when the 
draft plan was added to the website. 
 
Issues & Strategies 
 
8. 
Significant public outreach efforts allowed stakeholders to identify issues that are important to 
their community, and to help develop policies that address those issues. While not all-inclusive, 
the following is a brief overview of the most frequently identified issues, as well as strategies in 
the plan to help address them.  
 
• 
Issue: Growth and Development 
 
Stakeholders expressed a desire to maintain low-density, rural residential land use patterns while 
understanding that the area is anticipated to grow. Participants are also concerned about 
continuous and rapid annexation by surrounding communities.  Policies and strategies to address 
these concerns include maintaining land use transitions in urban/rural interface areas and open

CPA2023014 
Page 5 of 6 
space land use buffers to more intense uses, and only supporting urban development when 
necessary services and infrastructure are immediately available.  
 
• 
Issue – Water Availability 
 
Water availability continues to be a significant concern for much of the planning area. In June, 
the State announced that the Arizona Department of Water Resources would no longer issue 
certificates of assured water supply within the Active Management Area (AMA) to new 
subdivisions and that those developments would need to seek out an existing designated 
provider of water (i.e. a city).  This announcement, at least temporarily, has slowed new residential 
development, unless and/or until further guidance is received.  Maricopa County has limited 
authority or ability to assist in this issue, however the draft plan does encourage residents to 
integrate low impact development (LID) techniques into the design of homes and landscaping, 
and encourages efforts by the Arizona Department of Water Resources to continuously monitor 
and evaluate groundwater supplies.  
 
• 
Issue – Traffic Congestion/Collisions 
 
Numerous stakeholders reported concern with the level of traffic congestion occurring along 
Grand Avenue, particularly at Bell Road.  Likewise, congestion is also seen at Loop 303 and Grand 
Avenue.  While this plan does not address specific transportation concerns in great detail, the 
Maricopa Association of Governments and the Maricopa County Department of Transportation 
have transportation plans which do have scheduled corridor and congestion improvements based 
on funding availability. Also, the plan notes the long-term implications a future Interstate 11 
corridor - which traverses the western portion of the planning area - may have on growth and 
development. 
 
• 
Issue – Compatibility with Luke Air Force Base (LAFB) and Auxiliary Base #1 
 
Stakeholders felt that compatible development near LAFB and the Auxiliary Airfield #1 are 
important and should respect and protect its mission and operations. This is especially important 
within the high noise and accident potential zones (HNAPZs) of the airfields.    New residential 
development is not permitted within the HNAPZ per State law,  Also, when residential 
development is proposed within the ‘Territory in the Vicinity’ of the base, this plan recognizes the 
'Graduated Density Concept’ which outlines appropriate residential densities based on distance 
from the base.  Density increases the further away a development is from the base.  Staff 
monitors new development proposals in these areas and works with the LAFB to provide concise 
information to the development community. 
 
• 
Issue – Open Space 
 
Stakeholders agreed that open space should be protected and maintained where feasible.  The 
White Tank Grand Avenue area is home to the spectacular 29,557-acre White Tank Mountain 
Regional Park with abundant scenery, wildlife, and amenities. This park also holds numerous trails 
which are part of the larger Maricopa Trail System – a county-wide trail system spanning 315 
miles.  The park is cherished by residents as are other open spaces such as the Vulture Mountain 
Recreation Area and the Hassyampa River Preserve.  This plan identifies several strategies to 
promote open space including park programming, reinvestment, continuing partnerships and 
connecting open space in subdivisions to public open space.  The plan also outlines conservation 
opportunity areas and wildlife trail linkages.

CPA2023014 
Page 6 of 6 
Staff Analysis 
 
9. 
It is a time of rapid change in Maricopa County.  In the year 2000, the planning area was a slower 
and quieter place, and still much more rural.  Over the last two decades, growth in the county 
began shifting from East Valley communities like Chandler and Gilbert to West Valley 
communities like Buckeye and Surprise.  With such rapid change, the county found it prudent to 
review the White Tank Grand Avenue Area Plan to address the related issues and impacts.  The 
White Tank Grand Avenue Area Plan update addresses many issues that will help shape growth 
and development in the years to come. 
 
10. 
Staff feels that the project team conducted an efficient and quality public outreach process.  
Through community meetings, stakeholder interviews, email communications, a dedicated 
website, and broad dissemination of information the project team made stakeholder input a high 
priority.  Staff believes that citizens felt heard during the process and that their views are well 
represented by the goals and policies of this draft plan.  
 
11. 
The White Tank Grand Avenue Area Plan update wisely balances future growth with the vision, 
wants and needs of the area’s citizens.  The goals and policies within each element represent 
practical guidance to decision-makers which can be used to make sound future land use 
decisions.  Designed to be flexible, the updated plan addresses inevitable growth while also 
representing existing lifestyles.  Lastly, the update will conform with Vision 2030 which allows for 
both plans to cohesively serve county needs.    
 
Recommendation 
 
12. 
Staff recommends the Commission adopt a motion to recommend approval of case 
CPA2023014 for the reasons outlined in this report. 
 
Presented by:  
Adam Cannon, AICP, Senior Planner   
Reviewed by: 
Darren Gerard, AICP, Planning Division Manager 
 
Enclosure: 
Final Draft, White Tank Grand Avenue Area Plan (120 pages) 
 
Public Correspondence (105 pages)

White Tank Grand 
Avenue Area Plan
Final Hearing Draft
11.07.23

iii
WHITE TANK GRAND AVENUE AREA PLAN   |   MARICOPA COUNTY
ACKNOWLEDGMENTS
BOARD OF SUPERVISORS
Clint Hickman, Chairman (District 4)
Jack Sellers, Vice-Chairman (District 1)
Thomas Galvin (District 2)
Bill Gates (District 3)
Steve Gallardo (District 5)
PLANNING AND ZONING 
COMMISSION
Lucas Schlosser, Chairman (District 4)
Spike Lawrence (District 1)
Jimmy Lindblom (District 1)
Greg Arnett (District 2)
Jay Swart (District 2)
Lily Landolt (District 3)
Erik Hernandez (District 4)	
Francisca Montoya (District 5)
Kevin Danzeisen (District 5)
PLAN ADVISORY COMMITTEE
Erik Hernandez, P&Z Commission
Pam Schwartz, Sun City
Wilburn Edgar Meador Jr., Sun City West
Jenn Rahn, LAFB Community Initiatives Team	
Spencer Kamps, Homebuilder’s Association
Jim Bloom, APS
Lisa Atkins, Former ASLD Commissioner
Bill Lally, Tiffany & Bosco, PA
Angela Macaluso, MCDOT	
Lynndsay O’Neill, FCDMC	
RJ Cardin, MCPRD
Brian Stutsman, MCSO
CONSULTANTS
Logan Simpson
Kimley-Horn
Elliot D. Pollack & Associates
Preparation of the 2023 White Tank Grand Avenue Area Plan was made possible through 
the collaborative effort of many public and private stakeholders. Maricopa County 
extends its appreciation to all who participated in the process.
OUTREACH INTERVIEWS
Luke Air Force Base (LAFB)
Bureau of Land Management (BLM)
Arizona Game and Fish Department (AGFD)
Arizona State Land Department (ASLD)
Maricopa County Sheriff’s Office (MCSO)
City of Buckeye, City of Surprise, City of Peoria, 
and Town of Wickenburg
Central Arizona Project
Home Builders Association of Central Arizona (HBACA)
Toyota Proving Grounds Representatives, Nick Wood 
and Noel Griemsmann, Snell & Wilmer
Joseph D. Liberty, Liberty Southwest Realty, LLC
MANAGEMENT
Jen Pokorski, AICP, CFM, County Manager
Darcy Kober, Assistant County Manager
PLANNING AND DEVELOPMENT 
Tom Ellsworth, AICP, Planning and Development 
Director
Darren Gérard, AICP, Planning Manager
Matt Holm, AICP, Planning Supervisor
Adam Cannon, AICP, Senior Planner (Plan Project 
Manager)
COMMUNICATIONS OFFICE

Fields Moseley, Communications Director
Jason Berry, Deputy Communications Director
Elizabeth Curran, Web and Creative Services Manager

1.	 OVERVIEW������������������������������������������������������������������������������������������������������������������VI
	»
PURPOSE & PROCESS����������������������������������������������������������������������������������������������������������������������������������������������������2
	»
CORE PRINCIPLES & STRATEGIES��������������������������������������������������������������������������������������������������������������������������������5
	»
REGIONAL & LOCAL CONTEXT��������������������������������������������������������������������������������������������������������������������������������������6
	»
HISTORY OF THE AREA������������������������������������������������������������������������������������������������������������������������������������������������10
2.	 COMMUNITY ENGAGEMENT������������������������������������������������������������������������������������14
3.	 PLAN ELEMENTS���������������������������������������������������������������������������������������������������������24
	»
LAND USE ELEMENT���������������������������������������������������������������������������������������������������������������������������������������������������27
	»
TRANSPORTATION ELEMENT������������������������������������������������������������������������������������������������������������������������������������37
	»
ENVIRONMENT ELEMENT�������������������������������������������������������������������������������������������������������������������������������������������44
	»
GROWTH AREAS ELEMENT����������������������������������������������������������������������������������������������������������������������������������������54
	»
ECONOMIC GROWTH ELEMENT���������������������������������������������������������������������������������������������������������������������������������62
	»
OPEN SPACE ELEMENT�����������������������������������������������������������������������������������������������������������������������������������������������66
	»
WATER RESOURCES ELEMENT����������������������������������������������������������������������������������������������������������������������������������75
	»
ENERGY, UTILITIES, & PUBLIC FACILITIES ELEMENT�����������������������������������������������������������������������������������������������82
	»
COST OF DEVELOPMENT ELEMENT��������������������������������������������������������������������������������������������������������������������������88
4.	 APPENDICES��������������������������������������������������������������������������������������������������������������92
	»
APPENDIX A:  2000 WTGA LAND USES���������������������������������������������������������������������������������������������������������������������94
	»
APPENDIX B:  COMMUNITY ENGAGEMENT MATERIALS�����������������������������������������������������������������������������������������95
	»
APPENDIX C:  DEVELOPMENT MASTER PLANS (DMPS)���������������������������������������������������������������������������������������106
	»
APPENDIX D: GLOSSARY������������������������������������������������������������������������������������������������������������������������������������������108
TABLE OF 
CONTENTS
iv

v
WHITE TANK GRAND AVENUE AREA PLAN   |   MARICOPA COUNTY
LIST OF FIGURES
	»
FIGURE 1. COUNTY DOCUMENT RELATIONSHIPS.................................................................................................................................................2
	»
FIGURE 2. ADVISORY & REGULATORY DOCUMENTS ............................................................................................................................................3
	»
FIGURE 3. PLANNING PROCESS..............................................................................................................................................................................4
	»
FIGURE 4. REGIONAL CONTEXT..............................................................................................................................................................................6
	»
FIGURE 5. PLANNING AREA....................................................................................................................................................................................7
	»
FIGURE 6. MUNICIPAL PLANNING AREAS...............................................................................................................................................................9
	»
FIGURE 7. PLANNING AND DEVELOPMENT TIMELINE........................................................................................................................................12
	»
FIGURE 8. LAND OWNERSHIP................................................................................................................................................................................29
	»
FIGURE 9. FUTURE LAND USES............................................................................................................................................................................32
	»
FIGURE 10. FUTURE LAND USE MAP - NORTHERN SECTION............................................................................................................................33
	»
FIGURE 11. FUTURE LAND USE MAP - SOUTHERN SECTION..............................................................................................................................34
	»
FIGURE 12. FUNCTIONAL CLASSIFICATION.........................................................................................................................................................38
	»
FIGURE 13. MULTIMODAL TRANSPORTATION....................................................................................................................................................39
	»
FIGURE 14. FORECASTED 2050 TRAFFIC CONGESTION (MAG)..........................................................................................................................40
	»
FIGURE 15. FUTURE TRANSPORTATION IMPROVEMENTS................................................................................................................................41
	»
FIGURE 16. ENVIRONMENTAL FEATURES...........................................................................................................................................................52
	»
FIGURE 17. POTENTIAL GROWTH AREA A...........................................................................................................................................................57
	»
FIGURE 18. POTENTIAL GROWTH AREA B...........................................................................................................................................................58
	»
FIGURE 19. PROJECTED POPULATION GROWTH................................................................................................................................................59
	»
FIGURE 20. PROJECTED EMPLOYMENT GROWTH.............................................................................................................................................60
	»
FIGURE 21. WILDLIFE CONNECTIVITY..................................................................................................................................................................69
	»
FIGURE 22. CONSERVATION OPPORTUNITY AREA............................................................................................................................................70
	»
FIGURE 23. OPEN SPACE NETWORK....................................................................................................................................................................73
	»
FIGURE 24. WATER AND SEWER SERVICE AREA................................................................................................................................................77
	»
FIGURE 25. FORECASTED CHANGE IN WATER USAGE.......................................................................................................................................80
	»
FIGURE 26. PUBLIC FACILITIES AND UTILITIES..................................................................................................................................................84
	»
FIGURE 27. FUTURE UTILITY AND FACILITY NEEDS...........................................................................................................................................86

vi	
CHAPTER 1: OVERVIEW
CHAPTER 1
Overview
	» Purpose & Process
	» Core Principles & Strategic Priorities
	» Regional & Local Context 
	» History of the Area

1
WHITE TANK GRAND AVENUE AREA PLAN   |   MARICOPA COUNTY
The updated WTGA Area Plan 
will guide decision making to 
accommodate future growth, 
protect quality of life, and advance 
economic prosperity for current 
and future generations.

2	
CHAPTER 1: OVERVIEW
PURPOSE & PROCESS
A county area plan serves as a decision-making 
guide, aiding County staff, residents, and prospective 
developers. It also provides guidance for the County 
Planning and Zoning Commission and the County Board 
of Supervisors for growth and development.
A county area plan is part of the Maricopa County 
Comprehensive Plan. Arizona Revised Statutes (ARS) § 
11-804 states that “a comprehensive plan shall be made 
with the general purpose of guiding and accomplishing 
a coordinated, adjusted and harmonious development 
of the area of jurisdiction pursuant to the present and 
future needs of the county.” The comprehensive plan 
describes area plans to be “small-scale plans that 
account for unique conditions and needs of specific 
parts of the county.” In essence, an area plan will 
mirror the format of a comprehensive plan by including 
elements, goals, policies, a future land use map, and be 
updated as necessary to support the comprehensive 
plan. Figure 1 below illustrates how the comprehensive 
plan relates to area plans and other County documents.
Since the adoption of the White Tank Grand Avenue Area 
Plan (WTGA Area Plan) over 20 years ago, the region has 
experienced significant growth. The updated WTGA 
Area Plan will guide decision-making to accommodate 
future growth, protect quality of life and advance 
economic prosperity for current and future generations. 
An area plan does not change existing zoning. Any 
proposed zoning changes must conform to the adopted 
Figure 1.	 County Document Relationships 
Other Maricopa County Plan, 
Ordinances, Regulations:
Department of Transportation 
Flood Control District 
Environmental Services
County Area Plans
Scenic Corridor & 
Special Studies
Ordinances, Regulations & 
Guidelines:
Zoning Ordinance
Subdivision Regulations 
Public Participation
Capital 
Improvement 
Program
County 
Budget
Maricopa County Mission, Vision, Strategic Priorities 
Broad Policy 
Specific Implementation Strategies 
COMPREHENSIVE PLAN

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WHITE TANK GRAND AVENUE AREA PLAN   |   MARICOPA COUNTY
comprehensive plan and area plan. Figure 2 below 
illustrates the differences between policy documents, 
such as comprehensive and area plans, and regulatory 
documents, including the zoning ordinance, subdivision 
regulations, and the building code. Neither County 
policy nor regulatory documents govern incorporated 
lands within the WTGA Area Plan.
Figure 2.	Advisory & Regulatory Documents 
State 
Statutes
Building Code
Comp Plan
Required / Regulatory
Advisory / Policy
Advisory / Policy
Required / Regulatory
Required / Regulatory
Area Specific
Plans
Subdivision
Regulations
Zoning 
Ordinance
Purpose
The purpose of the WTGA Area Plan is to:
	»
Fulfill requirements of Arizona State law.
	»
Implement Maricopa County’s Mission, Vision, and Strategic Priorities. 
	»
Assist Maricopa County Leadership in making informed decisions to:
•	 Protect public health, public safety, and the environment
•	 Ensure responsible growth
•	 Promote quality communities
•	 Allocate limited financial resources
•	 Link complex and interrelated issues
•	 Build community consensus
•	 Reflect resident desires for their community
	»
Identify existing conditions, current issues, and strategies.

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CHAPTER 1: OVERVIEW
Planning Process
The 
process 
to 
update 
the 
WTGA 
Area 
Plan 
started with a project kickoff meeting in Spring 
2023. Four main phases of the process included: 
1) Existing Conditions, 2) Community Engagement, 3) 
Drafting the Plan, and 4) Finalizing the Plan.
Figure 3.	Planning Process
 
 
 
Internal Document only – 5/25/23 
 
 
 
 
Executive Summary 
(Full report available upon request) 
7/13/23 
Cover photos of the Community 
Participation Plan and the 
Existing Condition Report.

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WHITE TANK GRAND AVENUE AREA PLAN   |   MARICOPA COUNTY
CORE PRINCIPLES & STRATEGIES
The County’s Comprehensive Plan contains the following three core principles:

The WTGA Area Plan embraces these County-wide core principles throughout the document and articulates 
the following five strategic priorities specific to the WTGA planning area. Resident input, received through 
public meetings, questionnaires, and meetings with interest groups provided the basis for the strategic 
priorities shown below.
Strategic Priority 1: Improve congested and 
unsafe intersections.
Land use decisions should further mitigate traffic 
safety or congestion issues, and the County should 
coordinate with Arizona Department of Transportation 
(ADOT) to improve problem intersections.
Strategic Priority 2: Protect scenic corridors, 
views, and open spaces.
Land use decisions should analyze impacts on key 
corridors and natural assets and make every effort to 
preserve and protect each one.
Strategic Priority 3: Limit light pollution to 
protect dark skies.
Design new lighting and modify existing lighting during 
development to meet dark sky requirements.
Strategic Priority 4: Discourage development 
that is incompatible with Luke Air Force 
Base’s (LAFB) mission and operations.
New development in and around the high noise and 
accident potential zones (HNAPZs) of LAFB and LAFB 
Auxiliary Airfield #1 should be compatible with the 
designated mission and operation of each facility.
Strategic Priority 5: Ensure that development 
in the County has the appropriate services 
for water, wastewater, education, and public 
safety.
Land use decisions should analyze the impacts on 
service levels and infrastructure for the benefit of 
existing and future residents. Development that has 
more intense service or infrastructure needs should be 
encouraged to develop in cities and towns where the 
provision levels are higher and more commensurate to 
the needs of urban development.
Strategic Priorities
1.	 Decisions should support implementation of Maricopa County’s mission 
statement and strategic priorities. 
2.	Maintain a disciplined approach where comprehensive plan policies and 
growth-related decisions are understandable, measurable, consistent, 
practical, and promote efficiency.  Land use decisions are also based on 
these factors. 
3.	Avoid future problems by carefully considering past decisions.

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CHAPTER 1: OVERVIEW
REGIONAL & LOCAL CONTEXT
The WTGA Area Plan is approximately 727 sq. miles, 
or 465,114 acres, and is located northwest of the City 
of Phoenix along Maricopa County’s northern border, 
which abuts Yavapai County. The WTGA Area Plan 
comprises approximately 8% of Maricopa County and 
drove population growth in the region over the past 
two decades. The boundary follows a combination of 
municipal borders and roads, resulting in the orange 
area depicted in the map below.
2023 WTGA Planning Area
The WTGA planning area shown in Figure 5 on page 7 
underwent notable changes since the last adoption 
on December 6, 2000. The region’s rapid growth 
and development resulted in numerous municipal 
annexations of unincorporated Maricopa County by 
cities, such as Buckeye, Goodyear, and Peoria. As a 
result, the updated WTGA planning area shifted to 
remove some areas that are now under local jurisdiction. 
In addition, the boundary shifted westward to the border 
of Vulture Mine Road for the County to better plan for 
future growth to the northwest along the US Route 60 
corridor. The southern boundary was kept intact to 
account for inclusion of the High Noise and Accident 
Potential Zones (HNAPZs) surrounding both Luke Air 
Force Base (LAFB) and Luke Auxiliary Airfield #1. The 
existing WTGA planning area boundary has an area 
of 759 sq. miles or 485,760 acres, while the proposed 
boundary will decrease to 727 sq. miles or 465,114 acres.
Located to the northwest of Phoenix, the WTGA planning area makes up 8% of Maricopa County’s land 
area, which is 9,225 sq. miles. The WTGA planning area for the update is bounded by the Maricopa/
Yavapai County line to the north; South Vulture Mine Road and the City of Buckeye to the west; Sun City, 
Sun City West, and City of Peoria to the east; and White Tank Regional Park/I-10 to the south.
727 
sq. miles 465,114 
acres
Figure 4.	Regional Context

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WHITE TANK GRAND AVENUE AREA PLAN   |   MARICOPA COUNTY
Figure 5.	Planning Area

8	
CHAPTER 1: OVERVIEW
Municipal Planning Areas (MPAs) within 
the WTGA Area Plan
Municipal Planning Areas (MPAs), shown in Figure 6 
on page 9, extend across most of the WTGA planning 
area excluding the developments of Sun City, Sun 
City West, and a western portion of the planning area 
north of Buckeye. Local jurisdictions often have long 
term annexation plans for the unincorporated areas 
within their MPAs.  While the local jurisdictions do not 
have regulatory authority outside of their municipal 
boundaries, this map highlights the importance of 
collaboration between Maricopa County and the local 
communities within the WTGA planning area. Municipal 
logos of some of the larger jurisdictional coverages are 
shown on the left. 
Surprise Town Center, Shutterstock

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WHITE TANK GRAND AVENUE AREA PLAN   |   MARICOPA COUNTY
Figure 6.	Municipal Planning Areas

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CHAPTER 1: OVERVIEW
HISTORY OF THE AREA
Maricopa County was established in 1887, followed 
by the founding and incorporation of cities and towns 
across the region through the late 1800s to mid-1900s. 
A plan for the WTGA planning area was not established 
until 1982 with the adoption of the White Tank/Agua 
Fria Policy and Development Guide along with the 
Grand Avenue Corridor Land Use Plan in 1992. The first 
comprehensive plan for the County, Eye to the Future 
2020, was adopted in 1997 and helped lay a foundation 
for continued growth in the region. The Countywide 
comprehensive plan also led to the adoption of the 
first consolidated sub area plan for the WTGA Area. 
The WTGA Area Plan will update the 2000 plan and will 
account for the significant growth that has occurred over 
the past two decades and the continued growth that is 
projected over the next twenty years. While the WTGA 
planning area is now situated in the nation’s fourth 
largest county, the area’s most significant population 
growth did not occur until the 21st century. The area’s 
history, however, dates back thousands of years.
As early as 9000 B.C. various indigenous tribes 
inhabited this region. These early tribes were comprised 
of nomadic people traveling through the area on their 
way from Asia and Alaska to Mexico and South America. 
However, because of their nomadic existence their 
settlements did not become part of the landscape, and 
little is known about their way of life.
The first known permanent settlers were the Hohokam 
people, who occupied the area from approximately 500 
to 1450 A.D. It is believed that this group lived in small 
farming villages throughout the region, including in 
the present White Tank Mountain Regional Park. Their 
dwellings were shallow, rectangular pit homes built 
primarily below ground. As their culture developed, they 
began concentrating on small settlements in larger 
villages surrounded by walls.  Once this occurred, the 
Hohokam built an extensive irrigation canal system 
along the Salt and Gila River Valleys, much of which 
was used by the European settlers in the 19th century. 
Although the Hohokam attained a high degree of 
stone-age civilization, they had no alphabet or written 
language and therefore left no narrative stories.  This 
is unfortunate because sometime around 1300 A.D., 
the Hohokam abandoned the area for locations and for 
reasons still not known.
Beginning in the 1500’s, the Spanish explorers 
colonized the region, and from 1540 to 1821 claimed 
the area for the Spanish crown.  When Mexico declared 
independence from Spain in 1821, the region became 
part of the Republic of Mexico.  However, neither Spain 
nor Mexico extensively settled in the area and very 
little permanent occupation occurred in either the Salt 
or Gila Valleys.  With the Treaty of Guadalupe Hidalgo 
in 1848 and the Gadsden Purchase in 1853, the entire 
region became part of the United States. The first Anglo-
American settlers, primarily trappers, began arriving in 
the region during the 1820’s. However, it was the mid-
1800’s California gold rush that transformed the Gila 
River into a virtual highway of settlers and prospectors. 
In fact, it is estimated that by 1851 over 60,000 people 
had passed through the Gila River Valley on their way to 
California.
By the late 1800’s, Anglo settlement increased due to 
the expanded presence of the U.S. Army, large-scale 
irrigation development, the discovery of minerals, and 
the opening of the railroad. In 1877, the “Desert Land 
Act” permitted settlers to obtain title to 640 acres 
of desert land if they agreed to irrigate it within three 
years. By the 1890’s, over 100,000 acres of desert were 
irrigated in the Salt and Gila River areas which attracted 
still more settlers to the region.  Settlement occurred in 
the Buckeye area as early as 1855, Peoria in 1888, and 
Glendale in 1892. Irrigation and agricultural production 
accelerated with the completion of the Roosevelt Dam 
in 1911 and the entry of Arizona into the Union in 1912. 
Other dams were also constructed along the Salt, Verde, 
and Agua Fria Rivers. The 176-foot-high Waddell Dam, 
constructed in 1927, was at the time the largest multiple 
arch dams in the world. 
By World War I, several West Valley communities 
began to emerge.  El Mirage, Surprise, Litchfield Park, 
Goodyear, Avondale, and Tolleson grew primarily due 
to cotton production.  These communities later took 
on increasing importance around 1940 when a U.S. 
Army representative was sent to Arizona to find a site 
Hohokam Irrigation System Visualization, Robert B. Ciaccio

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WHITE TANK GRAND AVENUE AREA PLAN   |   MARICOPA COUNTY
for an Army Air Corps field for training fighter aircraft 
pilots.  In 1941, a 1,440-acre site was chosen, and Luke 
Air Force Base (LAFB) was opened. Luke trained over 
12,000 fighter pilots by the end of World War II but was 
decommissioned in 1946. In 1951, LAFB was reactivated 
and has been training U.S. and Allied pilots ever since. 
LAFB was named after Second Lieutenant Frank Luke 
who was posthumously awarded the Medal of Honor 
and the number-two U.S. flying ace in World War I.
World War II also marked a change in land use patterns 
throughout the area. Low-cost land and industrial 
decentralization 
brought 
electronics, 
aluminum, 
and aerospace industries to the region. Along with 
these industries came more people, and agriculture 
began to be replaced by residential development.  The 
area’s pleasant climate and the widespread use of air 
conditioning made the West Valley attractive to retirees. 
Retirement communities became part of the region’s 
growth pattern when Youngtown and Sun City started 
in the mid-1950’s.  Retail business followed people 
here, and many stores moved from central Phoenix to 
suburban areas. Completion of the Central Arizona 
Project, Interstate-10, and other major roadways also 
had impact on growth in the West Valley as individuals 
and business were able to move farther way from 
central city services, creating villages, satellite cities 
and master planned communities.
Today, the WTGA planning area is one of the fastest 
growing regions in the county.  This growth continues to 
offer certain benefits such as access to urban services, 
increased employment opportunities, as well as location 
and housing choices for residents.  However, growth and 
development continue to exacerbate certain problems 
such as urbanization of rural, agricultural, and Sonoran 
Desert areas, increasing the cost of servicing scattered 
development and increasing air pollution due to longer 
travel distances.  While not a complete solution the 
WTGA Area Plan assists in addressing these problems 
by 
enhancing 
cooperation 
between 
government 
agencies, citizens, and other affected interests, and 
by considering regional implications. Figure 7 below 
illustrates the comprehensive history of and timeline for 
the region.
Waddell Dam - 1927, Mark Durben
Frank Luke - 1918, USAF

12	
CHAPTER 1: OVERVIEW
Figure 7.	 Planning and Development Timeline
Planning & Development Timeline 
for the White Tank Grand Avenue Area

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WHITE TANK GRAND AVENUE AREA PLAN   |   MARICOPA COUNTY