04. Z240021 PZ Report

Maricopa County — Planning & Zoning (2025-04-10)

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Z240021
Page 1 of 6
Report to the Planning and Zoning Commission
Prepared by the Maricopa County Planning and Development Department
Case:
Z240021 – Marrs Headquarters
Hearing Date:
April 10, 2025
Supervisor District:
3
Applicant:
Clark Diepholz, Hawkeye Development, LLC 
Owner:
Red Planet Estates, LLC 
  
Request:
Zone Change with Overlay to IND-2 IUPD
 
Site Location:
Generally located at the southwest corner of Happy Valley Rd and 7th Ave. 
in the Deer Valley area
 
Site Size:
8.86 acres
Density:
N/A
County Island: 
Yes, City of Phoenix
County Plan:
Rural Development Area (0-1 d.u./ac)
Municipal Plan:
City of Phoenix - Industrial
Municipal Comments:
None received to date 
Support/Opposition:
None known
Recommendation:
Approve with conditions

Z240021
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Project Summary:
1.
The applicant is proposing a zone change with overlay from Rural-43 to IND-2 IUPD over an 8.86-
acre area currently consisting of five parcels at the southwest corner of Happy Valley Rd and 7th 
Ave north of the Deer Valley Airport. The site is currently subject to a violation, V202301538, 
regarding unpermitted construction and land usage without proper zoning entitlement. No Plan 
of Development (POD) has been proposed with this application.  A POD will be required prior to 
construction permitting to resolve the zoning violation.  
2.
Much of the area north of the Deer Valley Airport has developed via unregulated land divisions 
with industrial uses such as storage/contractor’s yards. A number of industrial uses have 
developed in the Rural-43 zoning and have become subject of zoning violations. There have been 
five industrial rezonings approved for such uses since 2019. Staff broadly agrees that this area 
is appropriate for industrial uses given its proximity to the airport, the TSMC development, and its 
designation for industrial uses within the City of Phoenix General Plan.
3.
Indeed, this application is the second application regarding a Marrs headquarters or complex 
within this area, with the first being located 1,700’ southwest at the corner of 11th Ave. and 
Alameda Rd. That project, Z2021037, was approved by the Board of Supervisors in 2022 and is in 
operation today. The operations for both sites seem to be similar (the subject site is currently 
operational as per the violation and site aerials). The applicant intends on using the existing 
buildings on site for offices, but otherwise would continue storage of construction material and 
commercial vehicles along with implementing minor yard improvements. The office would have 
a daily on-site staff of up to six employees and would maintain standard business hours of 8:00 
am to 5:00 pm. There is no anticipated customer traffic beyond employees of the Marrs business. 
4.
Few changes are being proposed as part of the IUPD. These requests primarily have to do with 
cementing certain aspects of the current site usage as part of the zoning. The most notable 
request relates to screening, both in terms of fencing and landscaping. First, the applicant is 
requesting that instead of 6’ CMU as required by MCZO 902.9.3, that they utilize the existing 6’ 
opaque fencing along the south side of the property; second, that landscaping not be required in 
front and street yard setbacks. The justification for these requests both have to do with the 
industrial nature of the area and the existing zoning pattern. While it is true that there remain 
Rural-43 homesteads in this Section and adjacent to the subject properties, it is clear the future 
of this area is that of an industrial nature. Many of these homesteads themselves have been 
subsumed by quasi-industrial uses. Finally, there are requests relating to parking surface material 
and commercial storage in required yards – the applicant wishes to retain the current storage 
areas within the setbacks, and to utilize compacted asphalt millings in lieu of paving the entirety 
of the site. The following table contrasts the base zoning and proposed changes – all other zoning 
is presumed to be base IND-2.
REGULATION
BASE ZONING DISTRICT 
REGULATIONS (IND-2)
PROPOSED ZONING DISTRICT 
REGULATIONS (IND-2 IUPD)
Required Landscaping
Required front and street 
side yard landscaped
None
Outdoor Storage
Not allowed in required front 
and street side yards
Allowed in required front and 
street-side yards
Parking Surface Materials
Asphalt
Compacted asphalt millings with 
petroleum based stabilizer
Screening
Minimum 6' solid wall
Minimum 6’ fencing with view 
obscuring material

Z240021
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Aerial-photo of the project site
Zoning District map of the Rural-43 zoning district – parcels in lime green are Rural-43 parcels with industrial SUPs

Z240021
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Existing On-Site and Adjacent Zoning / Land Use:
5.
On-site:
Rural-43 / Contractor’s yard
North:
Rural-43 / Rural estate 
South:
Rural-43 / Rural estate/quasi-industrial
East:
7th Ave then City of Phoenix / Commercial pressure washing facility
West:
Rural-43 / Vacant/quasi-industrial
Utilities and Services:
6.
Water:
Well
Wastewater:
Septic
Fire:
City of Phoenix
Police: 
MCSO 
Right-of-Way:
7.
Both Happy Valley Rd and 7th Ave are within the City of Phoenix’s jurisdiction. As no Plan of 
Development is included with this application, final site design may designate entrances along 
either or both roads. The applicant is ultimately responsible for coordination with Phoenix 
regarding these roads prior to the approval of building permits with Maricopa County.
Adopted Plan:
8.
City of Phoenix General Plan 2025 - Industrial (adopted 2025): The industrial land use category 
allows warehousing, manufacturing, and processing businesses. These categories are typically 
characterized as development that due to noise, smell, or some other special considerations are 
not appropriate for a commerce park. Staff believes the proposed usage fits this designation.
Public Participation Summary:
9.
The applicant completed the requirements for notifying all property owners within 300-feet of the 
site and area stakeholders. During the required public participation process neither staff nor the 
applicant received public comments.
Outstanding Concerns from Reviewing Agencies:
10.
N/A
Staff Analysis:
11.
Staff believes the proposed industrial zoning is appropriate. This area has and will continue to 
develop for industrial uses. The proposed zoning is consistent with the City of Phoenix General 
Plan designation of Industrial for this area.
Recommendation:
12.
Staff recommends the Commission adopt a motion recommending that the Board of Supervisors 
approve Z240021 subject to the following conditions ‘a’ – ‘j’:

Z240021
Page 5 of 6
a.
Development of the site shall be in substantial conformance with the Site Plan entitled 
“705, 711, 811, 825 W Happy Valley Rd“, consisting of 1 full-size sheets, dated March 1, 
2025, except as modified by the following conditions. Staff may determine slight 
refinements to remain in substantial conformance with the approved site plan.  Minor 
and major amendments to the site plan will be determined in accordance with Chapter 3 
of the Maricopa County Zoning Ordinance.
b.
Development of the site shall be in substantial conformance with the narrative report 
entitled “Narrative Report“, consisting of 6 full-size sheets, dated March 10, 2025 except 
as modified by the following conditions.
c.
The following Planning Engineering conditions shall apply:
1.
Without the submittal of a precise plan of development, no development approval is 
inferred by this review, including, but not limited to number of proposed building 
lots/units, drainage design, access and roadway alignments. These items will be 
addressed as development plans progress and are submitted to the County for further 
review and/or entitlement.
2.
A Traffic Study/Statement must be submitted with future entitlement (POD) 
application(s). See following link to MCDOT Traffic Impact Manual. (RDM 7.1.4) 
https://www.maricopa.gov/DocumentCenter/View/303
3.
There are Federal Patent Easements within the parcel. No encroachments are  allowed 
within the area unless abandoned. Applicant must contact MCDOT for further interest 
in the Patent Easement Abandonment Process.
4.
The above comments do not include identification of utilities or underground facilities 
within or adjacent to the required right-of-way that may have prior rights and/or require 
relocation.
5.
Happy Valley Road and 7th Avenue are within the jurisdiction of the City of Phoenix. 
The applicant will be responsible for coordinating with the City to review any traffic 
impact, right-of-way dedication, permitting or roadway improvement requirements.
6.
Engineering review of re-zone cases is conceptual in nature. All development and 
engineering design shall be in conformance with Section 1205 of the Maricopa County 
Zoning Ordinance; Drainage Policies and Standards; Floodplain Regulations for 
Maricopa County; MCDOT Roadway Design Manual; and current engineering policies, 
standards and best practices at the time of application for construction.
d.
Commercial building permits are required for any building on-site which have been prior 
approved for a residential occupancy. Any existing residence on parcel that is a 
manufactured building must have such an occupancy change processed through Arizona 
Department of Housing.
e.
The following IND-2 IUPD standards shall apply: 
1.
Required landscaping: None
2.
Outdoor storage: Allowed and many encroach into the required front and street- side 
yards

Z240021
Page 6 of 6
3.
Parking Surface Materials: Compacted asphalt millings with petroleum based 
stabilizer
4.
Screening: min. 6’ fencing with view obscuring material
f.
The IUPD overlay is applied to restrict the use of the site. Until such time as the site is 
served by sewer, uses on the site shall only be those acceptable to the Maricopa County 
Environmental Services Department (MCESD) that can be accommodated by septic 
systems. A public water system and public sewer system shall be required prior to 
establishment of any non-residential use that requires potable water.
g.
Administrative approval of a Plan of Development will be required prior to approval and 
issuance of construction permits to develop and establish use of the site. Prior to 
issuance of a building permit, written confirmation will be required from the emergency 
fire protection jurisdiction having authority that the facility has been designed in 
accordance with their regulations and requirements, and that emergency fire protection 
service will be provided to the facility. Prior to issuance of the certificate of occupancy, 
local fire protection jurisdiction review and approval will be required.
h.
Noncompliance with any of the conditions assigned to the approval of this Zone Change 
by the Maricopa County Board of Supervisors may be grounds for revocation in 
accordance with the requirements and procedures as set forth in the Maricopa County 
Zoning Ordinance. 
i.
The property owner/s and their successors waive claim for diminution in value if the 
County takes action to rescind approval due to noncompliance with conditions. 
j.
The granting of this change in use of the property has been at the request of the applicant, 
with the consent of the landowner.  The granting of this approval allows the property to 
enjoy uses in excess of those permitted by the zoning existing on the date of application, 
subject to conditions.  In the event of the failure to comply with any condition, the property 
may be considered for revocation to the zoning that existed on the date of application.  It 
is, therefore, stipulated and agreed that either revocation due to the failure to comply with 
any conditions, does not reduce any rights that existed on the date of application to use, 
divide, sell or possess the property and that there would be no diminution in value of the 
property from the value it held on the date of application due to such revocation of the 
Zone Change. The Zone Change enhances the value of the property above its value as of 
the date the Zone Change is granted and reverting to the prior zoning results in the same 
value of the property as if the Zone Change had never been granted.
Presented by:
Joel Landis, Planner
Reviewed by:
Rachel Applegate, Planning Supervisor
Attachments:
Case Map (1 page)
Site Plan (1 page)
Narrative Report (6 pages)
DPR comments (2 pages) 
MCESD comments (2 pages)

/
Maricopa County Planning & Development - Phoenix, AZ
3
Gross Acres: 9 approx.
Generated March 12, 2025 11:24 AM
Z240021
Application Name:
Legal Description
Marrs Headquarters
Applicant
Case Address
4N 3E 7
Clark Diepholz
705 W HAPPY VALLEY RD
Applicant Phone/Email
Parcel Primary:210-08-015B
(480) 290-2833
clark@hawkeyedevelop.com
PHOENIX, AZ 85085
Map scale 1:1,650
Supervisor District No.
Zone Change from RU-43 to IND-2 to fit with surrounding uses

APPROX 15'
APPROX 13'
PROJECT DATA
ADDRESS: 825 W HAPPY VALLEY RD PHOENIX 85085
APN: 210-08-003A
EXISTING ZONING: RU-43
LOT SIZE (NET): 99,840 S.F. (2.292 ACRES)
SUP: IND-2
HEIGHT PROPOSED: EXISTING TO REMAIN
MAX. HEIGHT ALLOWED: 40'
LOT COVERAGE PROVIDED: 3,166 / 99,840 = 3.2%
MAX LOT COVERAGE ALLOWED: 60%
LEGAL DESCRIPTION
THE WEST HALF OF THE WEST HALF OF OF THE
NORTHEAST QUARTER OF THE NORTHEAST
QUARTER OF THE NORTHEAST QUARTER OF
SECTION 7, TOWNSHIP 4 NORTH, RANGE 3 EAST OF
THE GILA AND SALT RIVER BASE AND MERIDIAN
MARICOPA COUNTY,  ARIZONA.
SCHOOL DISTRICT
DEER VALLEY UNIFIED # 97
PARKING REQUIREMENTS
OFFICE
PARKING REQUIRED 1 SPACE /300 S.F.
2,450 S.F. / 300 SF =9 SPACES
STORAGE
PARKING REQUIRED 1 SPACE/600 S.F.
716 S.F. / 600 SF = 1 SPACES
PARKING PROPOSED
10 TOTAL VEHICLE PARKING SPACES
8 - STANDARD 9'X18'
2 - ADA 11'X18'
PROJECT DATA
ADDRESS: 811 W HAPPY VALLEY RD PHOENIX 85085
APN: 210-08-003B
EXISTING ZONING: RU-43
LOT SIZE (NET): 103,599 S.F. (2.378 ACRES)
SUP: IND-2
HEIGHT PROPOSED: EXISTING TO REMAIN
MAX. HEIGHT ALLOWED: 40'
LOT COVERAGE PROVIDED: 2,695 / 103,599 = 2.6%
MAX LOT COVERAGE ALLOWED: 60%
LEGAL DESCRIPTION
THE EAST HALF OF THE WEST HALF OF THE
NORTHEAST QUARTER OF THE NORTHEAST
QUARTER OF THE NORTHEAST QUARTER OF SECTION
7, TOWNSHIP 4 NORTH, RANGE 3 EAST OF THE GILA
AND SALT RIVER BASE AND MERIDIAN, MARICOPA
COUNTY, ARIZONA.
SCHOOL DISTRICT
DEER VALLEY UNIFIED # 97
PROJECT DATA
ADDRESS: 711 W HAPPY VALLEY RD PHOENIX 85085
APN: 210-08-015D
EXISTING ZONING: RU-43
LOT SIZE (NET): 93,872 S.F. (2.155 ACRES)
SUP: IND-2
HEIGHT PROPOSED: EXISTING TO REMAIN
MAX. HEIGHT ALLOWED: 40'
LOT COVERAGE PROVIDED: 3,177 / 93,872 = 3.4%
MAX LOT COVERAGE ALLOWED: 60%
LEGAL DESCRIPTION
THE EAST HALF OF THE NORTHEAST QUARTER OF
THE NORTHEAST QUARTER OF THE NORTHEAST
QUARTER OF SECTION 7, TOWNSHIP 4 NORTH,
RANGE 3 EAST OF THE GILA AND SALT RIVER BASE
AND MERIDIAN, MARICOPA COUNTY, ARIZONA
ADDRESS: 705 W HAPPY VALLEY RD PHOENIX 85085
APN: 210-08-015C
EXISTING ZONING: RU-43
LOT SIZE (NET): 28,793 S.F. (.661 ACRES)
SUP: IND-2
HEIGHT PROPOSED: EXISTING TO REMAIN
MAX. HEIGHT ALLOWED: 40'
LOT COVERAGE PROVIDED: 1,800 / 28,793 =6.25%
MAX LOT COVERAGE ALLOWED: 60%
LEGAL DESCRIPTION
A PORTION OF THE EAST HALF OF THE NORTHEAST
QUARTER OF THE NORTHEAST QUARTER OF THE
NORTHEAST QUARTER OF SECTION 7, TOWNSHIP 4
NORTH, RANGE 3 EAST OF THE GILA AND SALT
RIVER BASE AND MERIDIAN, MARICOPA COUNTY,
ARIZONA.
ADDRESS: 705 W HAPPY VALLEY RD PHOENIX 85085
APN: 210-08-015B
EXISTING ZONING: RU-43
LOT SIZE (NET): 59,721 S.F. (1.371 ACRES)
SUP: IND-2
HEIGHT PROPOSED: EXISTING TO REMAIN
MAX. HEIGHT ALLOWED: 40'
LOT COVERAGE PROVIDED: 5,996 / 59,721 = 10.04%
MAX LOT COVERAGE ALLOWED: 60%
LEGAL DESCRIPTION
A PORTION OF THE EAST HALF OF THE NORTHEAST
QUARTER OF THE NORTHEAST QUARTER OF THE
NORTHEAST QUARTER OF SECTION 7, TOWNSHIP 4
NORTH, RANGE 3 EAST OF THE GILA AND SALT
RIVER BASE AND MERIDIAN, MARICOPA COUNTY,
ARIZONA.
SCHOOL DISTRICT
DEER VALLEY UNIFIED # 97
PARKING REQUIRMENTS
OFFICE:
PARKING REQUIRED 1 SPACE /300 S.F.
3,177 S.F. / 300 SF =10 SPACES
PARKING PROPOSED
10 TOTAL VEHICLE PARKING SPACES
8 - STANDARD 9'x18'
2 - ADA 11'x18'
:
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Narra$ve Report 
March 10, 2025 
Case # Z240021 
 705, 711, 811, 825 W Happy Valley Rd, Phoenix, AZ 85085 
APN’s: 210-08-003A, 210-08-003B, 210-08-015D, 210-08-015C, 210-08-015B 
 
 
Applicant 
Hawkeye Development 
(A2n: Clark Diepholz & Tim Locher) 
P.O. Box 8391 
Sco2sdale, AZ 85252 
(480) 290-2833 
clark@hawkeyedevelop.com 
cc: Rm@hawkeyedevelop.com

Project Introduc2on & Background 
The purpose of this request is to apply for the Maricopa County Rezone with Overlay process to change 
an existing RU-43 (Rural Zoning District-One Acre per Dwelling Unit) 8.86-acre property to IND-2 IUPD 
(Light Industrial with overlay) to allow for all uses under MCZO section 902, but restricting multifamily 
uses. This Rezoning would be more in keeping with the other surrounding property uses and aligns with 
the Owner’s intended use of the property, that of a light industrial use. 
Per Article 902.2 of the Maricopa County Zoning Ordinance (MCZO) the use would most closely 
resemble item: The proposed current use of the property as an office building with storage of 
construction equipment and vehicles are allowed uses in the IND-2 zoning district, as per Articles 
901.2.11 and 902.2.7 of the Zoning Ordinance. The IUPD zoning on this site shall prohibit any kind of 
multi-family/high-density residential uses.  
 
Description of Proposal  
We are proposing to re-use all the existing buildings and infrastructure that’s already at the site. 
Currently on 711 W Happy Valley Rd, there is one pre-existing 2,038 SF office and one 1,139 shop 
building for Marrs Construction Inc., as well as minor yard improvements (described below) needed for 
commercial vehicle parking and short-term storage. The company purpose is described on their home 
web page: “Marrs Construction Inc., a Phoenix construction company, provides grading, excavation, and 
civil services for both residential and commercial projects all over Arizona. We are one of the few 
companies that provide grading, excavation, as well as site preparation in Phoenix”.  
The corporate office is intended for 5-6 staff occupancy with a remote staff of 57 who will visit the office 
from time to time. Anticipated public interaction with the facilities – 10% clients, 90% remote staff. 
Company trucks from project work will be parked on site along with heavy construction equipment. 
Standard commercial business hours of operation are anticipated: 5-6 days/week from 8am-5pm. Traffic 
on N 7th Ave would include trips from office staff, remote staff, and trips by trailers. Miscellaneous 
additional traffic is anticipated to be no more than 10 trips per day. 
No other non-permeable surface is being constructed or added to the site, so the storm water drainage 
should be unaffected.  
Currently on 825 W Happy Valley Rd, there is one pre-existing 2,450 SF office and one 718 SF storage 
building as well as minor yard improvements (described below) needed for a future landscaping supply 
company. 
The main office is intended for 2-3 staff occupancy. Anticipated public interaction with the facilities – 
90% customers, 10% staff. Standard commercial business hours of operation are anticipated: 5-6 
days/week from 8am-5pm. Traffic on W. Happy Valley Rd. and N 9th Ave. would include trips by these 
customers.  
No other non-permeable surface is being constructed or added to the site, so the storm water drainage 
will be unaffected.

IUPD Overlay 
The Overlay qualifier is needed to address several varied development standards. Varied development 
standards including: 
1. Article 902.9-3. 
b. A solid masonry wall not less than six feet in height shall be required along and adjacent to any side or 
rear property line abutting any rural or residential zone boundary, or any alley abutting such zone 
boundary. Further, any access gates shall be constructed of view-obscuring material to provide effective 
site screening.  
We request that the pre-finished 6 ft high opaque fencing be acceptable in lieu of the masonry wall 
along the south side of the property. The current neighboring industrial type uses surrounding the 
property, although RU-43 zoned, don’t warrant the type of screening called for in the ordinance.  
2. Parking Surface Material:  
All uses other than a single-family residence required paved parking. Asphalt millings alone is not 
considered paving because it is not cohesive to withstand erosion. If water were to flow across millings, 
they would be displaced and maintenance would be required to restore its uniformity, where with 
paving, no maintenance would be required.  
We request that compacted GSA material (asphalt millings) with a petroleum-based stabilizer be 
accepted as an alternate paving material in locations as depicted on site plan paving legend. It has a 
proven record in many applications to stabilize and solidify any soil or aggregate as well as provide 
erosion control and dust suppression. We request this alternate paving noting that sufficient 
conventional asphalt paving addressing all traffic and yard areas is cost prohibitive as a first cost item 
and is an expensive ongoing maintenance item. Also, the heavier equipment loading over long durations 
will lead to premature failure of asphalt paving; it is more cost effective to reinstall compacted GSA 
material and apply stabilizer where needed.  
3. No storage allowed in Front or street side required yards  
Additionally, due to the site's unique configuration and existing access points, relocating storage away 
from these areas would create operational inefficiencies and require unnecessary site modifications. 
4. Landscaping required in front and street yards  
The natural landscape buffer already present due to the site’s topography serves the intended purpose 
of the ordinance by providing visual screening and maintaining the character of the area. Additionally, 
introducing new landscaping would be impractical due to site constraints, ongoing industrial operations, 
and maintenance challenges. Furthermore, preserving the existing natural buffer aligns with sustainable 
development practices by minimizing unnecessary land disturbance and irrigation requirements.

Relationship to Surrounding Properties  
This parcel currently lies in a neighborhood of light industrial uses and vacant undeveloped parcels with 
a variety of zoning designations. To the immediate north on the other side of W Happy Valley Rd is a 
property zoned RU-43 in Maricopa County’s jurisdiction but is being used as the headquarters of a 
landscaping company with outdoor storage of various equipment, rock aggregate, and other materials 
(unscreened).   
To the east is an A-1 zoned, Light Industrial property in the city of Phoenix’s jurisdiction. It is being 
developed into a battery storage facility for electric vehicles. 
To the south is a property zoned RU-43 in Maricopa County’s Jurisdiction and is being used as horse 
property, outdoor storage, and a construction yard. To the west on the west side of N 9th Ave, the

property zoned RU-43 in Maricopa County’s jurisdiction, is currently being used as a truck/trailer storage 
yard.  
The intended use of this property is compatible with the surrounding uses. It’s generation of minimal 
additional traffic on the N 7th Ave to the east & N 9th Ave to the West, and will have an insignificant 
impact in the neighborhood. The office and storage use will not generate an unusual amount of noise 
disturbance nor obnoxious odors, in comparison to the adjacent uses, nor will it adversely affect the 
public health, safety and general welfare.  
Location and Accessibility  
Parcels 210-08-003A, 210-08-003B, 210-08-015D, 210-08-015C, 210-08-015B are located on the 
Southwest Corner of West Happy Valley Road & North 7th Avenue, Phoenix, AZ 85085. The closest 
major road is West Happy Valley Road to the north, designated a major arterial. 
 
This location is approximately 2 miles East of the I-17 Highway & Happy Valley Road interchange and 6 
miles north of the I-17 & Arizona State Route 101, strategically convenient for conducting business in 
the county and the state. 
Circulation System  
As described above the off-site circulation is along W. Happy Valley Rd.  to the North, East along N. 7th 
Ave, and west along N 9th Ave. The access to the property along the East & West sides of the parcels 
along North 7th Ave & North 9th Ave respectively, will be surfaced with compacted GSA material with 
petroleum-based stabilizer which meets the County intent for paving. This same GSA material with 
stabilizer is used throughout the yard maintaining an erosion proof, uniform, cohesive surface in 
equipment parking areas and circulation paths. The outdoor yard space areas are also finished with 
compacted GSA material with petroleum-based stabilizer material. While this parking area is primarily 
for smaller vehicles it is designed to allow for larger vehicles to access throughout. Staff parking will be 
located immediately north and east of the 2,038 SF building office building on 711 W Happy Valley Rd, 
and located immediately northwest of the 2,450 SF building office building on 825 W Happy Valley Rd. 
Given the current site layout, the area is large enough to allow both Marrs large equipment and 
emergency vehicles to complete a return loop to the pre-existing driveway along either side of the 
properties (along N 7th Ave & N 9th Ave). Fencing between the properties will be removed for site 
circulation 
Development Schedule  
No major development or construction will be done for this project.  
Community Facilities and Services  
The area northwest of the I-17 and State Route 101 is served by the Deer Valley Unified School district, 
the school campuses being west of the I-17 and north of the 101. The Northeast campus for West-MEC 
(Western Maricopa Education Center) is approximately a mile to the southwest.

A regional, small craft, public airport lies due south of this property: Phoenix Deer Valley Airport. A 
vibrant commercial district exists immediately east of the I-17 and Happy Valley Road interchange, 
comprised of the Happy Valley Towne Center and the Shops at Norterra. To the south, at the I-17 and 
101 interchange is Deer Valley Medical Center. Public parks in this north portion of the City of Phoenix 
include the Phoenix Sonoran Preserve some 2 miles to the north and Cave Buttes Recreation Area 
approximately 1.5 miles to the east.  
Public Utilities and Services  
The Utility Providers in this area are:  
• 
Electric: APS is the local provider. The property is already connected with power, and we are 
proposing to reuse the pre-existing service. 
• 
Water and Sewer: the City of Phoenix is the water and sewer provider for this area. There is a 
water and sewer main in N. 7th Ave. The property is currently being served by a private well and 
septic system. We are proposing to reuse those services. 
• 
Gas: though Southwest Gas is the local provider, there is no service to the site.  
• 
Fire Protection: this parcel is not within City of Phoenix jurisdiction, nor is it served by Daisy 
Mountain Fire District. Services however would be provided by nearest Phoenix fire station, 
most likely station 36 to the south. Will Serve letter to be provided.   
• 
Police Protection: though this parcel is not within City of Phoenix jurisdiction. Services would be 
provided by nearest Phoenix police station, Black Mountain precinct or MCSO.  
• 
Refuse: property would be served by private vendor.

Page 1 of 2 
 
 
 
 
 
 
 
 
 
 
 
James Philbin, PE 
Planning & Development 
301 W. Jefferson St., Suite 170 
Phoenix, Arizona 85003 
Phone: (602) 372-4362 
www.maricopa.gov/planning 
Email address: 
james.philbin@maricopa.gov 
Planning & Development 
 
Engineering Plan Review 
Date:    
December 27, 2024 
 
Memo To: Darren Gerard, AICP, Planning Manager, Department of Planning & 
Development 
 
Attn: 
Joel  Landis, Planner, Planning & Development Services 
 
 
From: 
James Philbin, P.E., Plans Examiner Engineer, Planning & 
Development Services 
 
cc: 
Bob Fedorka, P.E., Engineering Manager, Planning & Development 
 
Subject:   
Z240021 - Zone Change (RU-43 to IND-2 IUPD) 
 
(E1 Memo) 
Job Site Address: 705 W Happy Valley Road, Phoenix, AZ 85087 
 
APN(s): 210-08-003A, 210-08-003B, 210-08-015B, 210-08-015C and 210-08-
015D 
 
This application is to specify zoning for future development and does not include a 
Plan of Development. 
 
PND Engineering Plan Review (DPR, FCD and PND Transportation) has reviewed the 
1st submittal of the Zone Change application routed for review on December 06, 2024, 
and has no objections subject to the following conditions: 
 
1. Without the submittal of a precise plan of development, no development approval 
is inferred by this review, including, but not limited to number of proposed building 
lots/units, drainage design, access and roadway alignments. These items will be 
addressed as development plans progress and are submitted to the County for 
further review and/or entitlement. 
 
2. A Traffic Study/Statement must be submitted with future entitlement (POD) 
application(s). See following link to MCDOT Traffic Impact Manual. (RDM 7.1.4) 
https://www.maricopa.gov/DocumentCenter/View/303   
 
3. There are Federal Patent Easements within the parcel. No encroachments are 
allowed within the area unless abandoned. 
• 
Applicant must contact MCDOT for further interest in the Patent Easement 
Abandonment Process. 
 
4. The above comments do not include identification of utilities or underground 
facilities within or adjacent to the required right-of-way that may have prior rights 
and/or require relocation.

Page 2 of 2 
  
 
5. Happy Valley Road and 7th Avenue are within the jurisdiction of the City of 
Phoenix. The applicant will be responsible for coordinating with the City to 
review any traffic impact, right-of-way dedication, permitting or roadway 
improvement requirements.  
 
 
6. Engineering review of re-zone cases is conceptual in nature. All development and 
engineering design shall be in conformance with Section 1205 of the Maricopa 
County Zoning Ordinance; Drainage Policies and Standards; Floodplain 
Regulations for Maricopa County; MCDOT Roadway Design Manual; and current 
engineering policies, standards and best practices at the time of application for 
construction. 
 
Please contact me if you have any questions or require any additional information.

Page | 1  
 
 
Subdivision 
Infrastructure  
& Planning Program 
301 W. Jefferson St. 
Phoenix, AZ 85003 
 
S u b d i vi s io n @ m a ri co p a .go v 
e s d .m a r i c o pa .g o v 
 
 
 
 
 
The Maricopa County Environmental Services Department (MCESD) has completed review 
for the Marrs Headquarters planning case(s). Please note the following MCESD requirements 
for site development: 
 
Drinking Water –  
Per the Safe Drinking Water Act, any water system that supplies more than 25 people or 15 
service connections per day for at least 60 days per year is classified as a Public Water 
System (PWS).  
• 
If the above criteria are met, a Public Water System application and a New Source 
Approval application are required and must be submitted to the MCESD’s Drinking 
Water Program. A water quality analysis report will be required with submittal and is 
good within one-year of testing. 
 
An Approval to Construct application is required to be submitted to the MCESD’s Treatment 
Program for all PWS water treatment facilities. 
• 
For questions, please contact the Water/Wastewater Treatment Program at (602) 
372-2861 or email treatmentplantprogram@maricopa.gov 
 
An Approval to Construct application is required to be submitted to the MCESD’s 
Subdivision & Infrastructure Program for all PWS water system infrastructure. 
• 
For questions, please contact the Subdivision and Infrastructure Program at (602) 
506-1058 or email subdivision@maricopa.gov 
 
For additional Drinking Water related questions, please contact the Drinking Water program 
at (602) 506-6935 or by email at sdwquestions@maricopa.gov. 
 
Project Name: Marrs Headquarters 
Primary Contact Name: Clark Diepholz 
Planning Application Type: Zone Change 
APN(s): 210-08-015B 
Reviewer: Elliott Wheaton, P.E. 
Email: Elliott.Wheaton@maricopa.gov 
Phone: 602-376-6035 
Planner Name: Joel Landis 
Planning Case #: Z240021 
Date: December 24, 2024 
 
Water and Waste Management Division

Page | 2  
 
 
Onsite Wastewater (Septic) –  
A Minor Plan Review application must be submitted for any existing septic system(s) if 
being utilized and if the applicant believes the existing system(s) are adequate in size to 
support the new use; otherwise, a new septic permit/install may be required. 
 
Projected flows between 3000 and 24,000 gallons per day require a 4.23 General Permit and 
may require nitrogen treatment. 
 
For Onsite Wastewater related questions, please contact the Onsite Program at (602) 506-
6666 or by email at septicquestions@maricopa.gov. 
 
Subdivision Infrastructure and Planning –  
An Approval to Construct application is required and must be submitted to MCESD’s 
Subdivision & Infrastructure Program for water, reclaimed water and/or wastewater system 
infrastructure. 
 
A Water Service Agreement signed by the Utility is required and must be submitted to 
MCESD’s Subdivision & Infrastructure Program if the site/development will be provided with 
water and/or reclaimed water by a Utility.  A Capacity Assurance Form issued by the Utility 
is required to MCESD’s Subdivision & Infrastructure Program if the site/development 
wastewater service is being provided by a Utility. 
 
For subdivision related questions, please contact the Subdivision and Infrastructure 
Program at (602) 506-1058 or email subdivision@maricopa.gov. 
 
Additional Notes –  
*It should be noted that this document does not approve the referenced project. Comments are provided 
for the benefit of the applicant for MCESD permit requirements and as an advisory to Maricopa County 
Planning and Development Department. Other Maricopa County agencies may have additional 
requirements. Final review and approval will be made through Planning and Development Department 
procedures. Applicant may need to submit separate applications to the Maricopa County Environmental 
Services Department for approval of proposed facilities regulated by the Department. Review of any such 
application will be based on current regulations at the time of application.