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Permit Number: TD-DEV-0725-00191
Parcel: 11302001H

Review Status: In Review

Review Details: DEVELOPMENT PACKAGE NEW v.3

Permit Number - TD-DEV-0725-00191
Review Name: DEVELOPMENT PACKAGE NEW v.3
Review Status: In Review
Review Date Reviewer's Name Type of Review Description Status Comments
06/23/2026 NPPO Standard APPROVED
07/14/2026 ROW Engineering Review Standard APPROVED
07/15/2026 Site Zoning Standard APPROVED
N/A External Reviewers - Tucson Electric Power (TEP) Standard PENDING ASSIGNMENT
07/15/2026 External Reviewers - Pima County Addressing Standard REQUIRES RESUBMIT eport Date: 06/24/2026
Description : Addressing Review TD-DEV-0725-00191
Address : , , ,
Record Type : Addressing
Document Filename : Plan Set
Reviewer Contact Information:
Corrections in the following table need to be applied before a plan is approved
Review Report - Resubmittal Requested
Application Number: P26AD00500
Comment ID Comment Date Corrections
Needed
Page Ref Reviewer : Department Review Comments
DSD Addressing
1 06/24/262026 Yes 1-1-1 David Wilging : DSD Addressing Please identify which road is being used as primary access. This will assist
with the assignment of addresses.
General Comments
Pima County Public Works
201 N. Stone Ave.
Tucson, AZ 85701
If you have any questions please call 520- 724-6490 for an appointment to discuss this notice. If following discussions with staff you still disagree with the below listed deficiencies,
you may appeal to the Building Official in accordance with Pima County Code 15.04.060 by submitting the form posted on our web site with payment of appeal fee prior to permit
application expiration. Disputes about the interpretation of the Zoning Code may be appealed to a Pima County Board of Adjustment under A.R.S. § 11 -816 and P.C.C. § 18.93.060.
Please submit all plans, calculations and specifications to us electronically via the Digital Projects page in the online portal.
Re-Submittal Procedures
Please submit all documents using Citizen Access at permits.pima.gov (i.e. plans, drawings, calculations, quantities, exhibits, photographs, letters, etc.).
1. Please go to permits.pima.gov and login to your account to access review comments and resubmit.
2. If you have questions or need clarification regarding comments, please contact the reviewer.
3. Provide a response to each correction comment.
4. To resubmit, upload revised full plan set.
Should the resubmittal not completely address this request for corrections, the application maybe denied requiring a new application and payment all applicable
review fees in accordance withA.R.S. § 11-1605
07/02/2026 Site Engineering Standard REQUIRES RESUBMIT Permit Activity Number: TD-DEV-0725-00191 (3rd Review)
Project: Tentative Plat for a 7-lot single-family Flexible Lot Development (FLD) at 3957 N Mountain Ave (±0.59 acres)
Location: 3957 N MOUNTAIN AV
Review Date: 7/2/2026
Reviewer: Marco Contreras – Engineering Associate & Joe Macaulay – Civil Engineer
Reviewer Contact Information: marco.contreras@tucsonaz.gov & Joe.Macaulay@tucsonaz.gov
Related cases:

Plan review for the above-referenced development package has been completed. This review was conducted for compliance with applicable development criteria including the City of Tucson Unified Development Code (UDC), Administrative Manual (AM) Section 2-6, and Technical Standards Manual (TSM) sections governing waste management, pedestrian access, hydrology – retention/detention requirements, and all applicable site standards.
The following comments must be addressed prior to approval. To help facilitate a timely resubmittal, please provide updated plans and calculations along with a written response to each comment, indicating what action was taken and where the change can be found on the plans. Do not use revision clouds on resubmittal drawings — clouds are reserved for post-permit revisions only. Submit your response letter and updated plan set & reports as separate files.

Applicable Code Links for quick/direct reference:
City of Tucson Code: https://www.tucsonaz.gov/Departments/Planning-Development-Services/Codes
Floodplain Code: https://codelibrary.amlegal.com/codes/tucson/latest/tucson_az/0-0-0-19333
Drainage Manual Link: https://www.tucsonaz.gov/files/sharedassets/public/v/1/pdsd/documents/engineering-code/cot-drainage-manual-searchable.pdf
Design standards for Stormwater Detention and Retention Link:
https://www.tucsonaz.gov/files/sharedassets/public/v/1/pdsd/documents/engineering-code/updated-retention-detention-manual.pdf
City of Tucson Chapter 25: https://codelibrary.amlegal.com/codes/tucson/latest/tucson_az/0-0-0-18593

Site Engineering Grading Review Comments:
1. Provide drainage flow direction arrows across the entire site to delineate high points, low points, and positive drainage patterns. Flow arrows shall demonstrate that all stormwater runoffs are conveyed away from the proposed structure and directed solely toward the applicable adjacent Right-of-Way (ROW) or approved drainage easement. Drainage shall not be directed toward adjacent private parcels. Ensure proposed grades reflect a minimum of 5% gradient away from the structure for a minimum horizontal distance of 10 feet [IRC R401.3]
2. Regarding the area between lots 2 & 5 – Based on the shown grading spot elevations (Sheet 9), demonstrate how drainage will be managed to not allow for ponding while also maintaining effective positive drainage from all structures & walls.
3. One-inch equals fifteen feet is not a standard engineering scale. Update the plans to include an acceptable scale. IE: one-inch equals ten feet, one-inch equals twenty feet, etc.
4. Lot 7 does not show sufficient elevations at the Eastern boundary – revise to demonstrate positive drainage away
5. Grading Plan – The Limits of Grading (LOG) are not clearly depicted on the grading plan. The LOG must be shown using a distinct line type to differentiate it from other plan elements and to clearly define the extent of proposed ground disturbance.
a. Update the legend on Cover Sheet to include and define the Limits of Grading line type. All line types, symbols, and keynotes depicted on the grading plans shall be represented in the legend.
6. The surfacing construction detail will need to be revised for the proposed interior roads/streets - a complete pavement section detail demonstrating compliance with UDC 7.4.6.I surfacing requirements. The detail(s) must address the following:
a. The pavement section design must be consistent with and supported by the geotechnical report recommendations. The report (Pg 15) recommends 2.5 inches of AC over 4 inches of Base Course. Revise the construction detail A provided on Sheet 9 accordingly. Keynotes etc should also be addressed across the plan set regarding surfacing.
06/23/2026 Site Landscape Standard REQUIRES RESUBMIT PLANNING AND DEVELOPMENT SERVICES DEPARTMENT
REVIEWER: CHAD KELLER, RLA
SITE LANDSCAPE/NATIVE PLANT PRESERVATION SECTION

PROJECT: DEVELOPMENT PACKAGE AND TENTATIVE PLAT FOR A 7-LOT SINGLE-FAMILY FLEXIBLE LOT DEVELOPMENT (FLD)
ACTIVITY NO: TD-DEV-0725-00191
ADDRESS: 3957 N MOUNTAIN AV
ZONING: R-2 RESIDENCE ZONE
LAND USE: FLEXIBLE LOT DEVELOPMENT
REVIEW NO: 2
6.23.2026

This plan has been reviewed for compliance with applicable development criteria in the City of Tucson Unified Development Code (UDC) Administrative Manual (AM) Section 2-11 and Technical Manual (TM) Section for landscape, native plants, and water harvesting.

Please resubmit revised drawings along with a detailed response letter, which states how all of the Site Landscape and NPPO Section review comments have been addressed.

SITE LANDSCAPE/NPPO SECTION COMMENTS:

1. One-inch equals fifteen feet is not a standard engineering scale. Update the plans to include an acceptable scale. IE: one-inch equals ten feet, one-inch equals twenty feet, etc.

2. Provide a calculation for the required trees along pedestrian circulation systems and indicate their locations within Functional Open Space areas.

*SEE UDC 8.7.3.H -- LANDSCAPING, SCREENING AND WALL REQUIREMENTS:

1. FLD projects shall comply with Section 7.6, Landscaping and Screening Standards, except as otherwise provided by this section.
*2. One canopy tree shall be provided for every 40 feet of pedestrian circulation systems, excluding crossings with streets, alleys, and driveways. If providing canopy trees every 40 feet is not achievable, the applicant shall:
*a. Provide the equivalent number of trees that would be obtained using the 40-foot increment measure; and,
*b. Distribute the trees within the FLD project site along pedestrian circulation systems and within functional open space areas.

3. Parking Lots as an accessory to this overall use requires a 5-foot wall. Include the wall along the south property line adjacent to the parking lot on the development package. Include the masonry wall on the landscape planting plan and all other plan sheets in the plan set and include a detail for the wall on the details sheet.

4. Show the proposed contours for the recessed functional open space per keynote number 2 on the grading plan.

5. **SEE LETTER (d) BELOW: If functional open space is intended to be depressed, then make sure the requirements are met for the top contour near a building foundation.
DESIGN STANDARDS FOR STORMWATER DETENTION AND RETENTION FOR PIMA COUNTY
5.3.1.11.d UNDER: GENERAL STANDARDS FOR STORMWATER HARVESTING BASINS
11. For safety and access purposes, stormwater harvesting basins shall have the following
setbacks, as measured from the top of the basin slope:
a. Minimum 1 foot from a sidewalk or other pedestrian access path and from off-street
parking areas.
b. Minimum 2 feet from back of curb or edge of pavement for streets with on-street
parking.
c. Minimum 6 inches from back of curb or edge of pavement for streets with no on-street
parking.
**d. Minimum 10 feet from structures, or minimum setback specified in a geotechnical
report for the project.
e. Minimum 4 feet from the property boundary or other access space for maintenance
access.

6. Ensure all Site Engineering grading comments are addressed.

Thank you.
Chad Keller, RLA
Landscape Architect
chad.keller@tucsonaz.gov
520.837.4923
07/15/2026 External Reviewers - Design Professional Standard REVIEW COMPLETED the architecture company
at The Silverbell Ranch 2625 N. Silverbell Road Tucson, Arizona 85745 520 622-4506 / fax 520 620-6097
Flexible Lot Development (FLD) 2ND Review:
Date: July 14, 2026
From: Richard Fe Tom, AIA, City of Tucson On-Call Design Professional
To: City Development Review Committee (CDRC)
Re: Design Professional 2nd Review of the Mountain Flexible Lot Development (FLD),
3957 N Mountain Ave, Development Package # TD-DEV-0725-00191 for compliance with
Uniform Development Code (UDC) Section 8.7.3.M.1: Design Criteria and compliance
with Sections 2-06.5.3.E and 2‐06.5.3.F of the Administrative Manual.
The following review comments are provided to detail the Design Professional’s recommendation
for approval of this project. The review is based upon Unified Development Code (UDC) Section
8.7.3.M. Design Criteria and Sections 2‐06.5.3.E and 2‐06.5.3.F of the Administrative Manual.
Unified Development Code (UDC)
M. DESIGN CRITERIA (Section 8.7.3.M) Design Professional's Comment:
1. Architectural Variation
a. Purpose:
To provide architectural diversity, visual
interest, and to avoid monotony in architectural
design by requiring variations in such
architectural treatments as color, finished
materials, massing and rooflines, orientation of
units, garages, and porches.
Not Required – Architectural Variation is
not required as this development does not
meet the applicability requirements of UDC
Section 8.7.3.M.1.b.(1) & (2) below.
b. Applicability:
(1) Projects with 20 or more single-family
detached residential units except when
residential units are on lots larger than 10,000
square feet or, where dwelling units are
separated by 30 feet or more; or,
(2) Elevations of single-family detached units
abutting a public street designated as a
collector or arterial street in the Major Streets
and Routes Plan; or, a private or public street
designed and/or designated as a residential
collector street.
Not Applicable – The Mountain Ave FLD
contains less than 20 single-family detached
residential units.
Not Applicable – Units 3 & 4 that abut
Mountain Ave are single family “attached”
townhome units; therefore, they do not
require architectural variation.
d. Architectural Variation Plan Required
(1) An Architectural Variation Plan (AVP)
demonstrating compliance with the
requirements of this section shall be prepared
in accordance with the Section 2-06.5.3.E
Architectural Variation Plan, of the
Administrative Manual.
Not Required – An Architectural Variation Plan
(AVP) is not required for this proposed FLD
development.
 the architecture company
3957 N Mountain Ave - FLD 2nd Review tac# 25015 COT 3957 N Mountain Ave FLD
TD-DEV-0725-00191
Date: 07/14/26
Page 2 of 5
2. Transition Edge Treatment and Mitigation for Adjacent Properties
a. Where a single-family attached or multi-family
FLD project is adjacent to existing single-family
residential development, the FLD shall provide
buffering in order to preserve the privacy of the
existing residential development.
Examples of buffering include, but are not
limited to, landscaping, a fence, or a wall. The
proposed buffering shall be included as
conditions on the approved subdivision plat or
site plan
Applicable – Lots 1, 2, 5 & 6 of this project
development contain single-family attached
residences which are to be constructed
adjacent to existing single-family residences
that are zoned R-2 along the west property
lines.
Complies – Proposed buffering for this
project is primarily achieved through
perimeter walls, landscaping, window
placement, and architectural screening
elements.
Landscape plans are included in the overall
development package; however, additional
landscaping is not proposed as the primary
privacy mitigation method.

b. Privacy Mitigation:
(1) Applicability: Privacy mitigation as required by
this section is required when multistory
residences are proposed adjacent to existing
single-story residences and the existing
residences are zoned R-2 or more restrictive.
Applicable – Lots 1, 2, 5 and 6 of this
project development proposes multi-story
residences to be constructed adjacent to
existing residences that are zoned R-2 or
more restrictive.
(2) Prohibited Improvements: Balconies, windows
(except for clerestory & translucent windows), or
any other feature on an upper floor that
overlook the rear and side yards of an adjacent
residence are prohibited.
Complies – Site plan, elevations, and site
photos have been submitted demonstrating
the project modifications made to comply
with Section 8.7.3.M.2.b of the UDC.
The following proposed measures are found
to adequately reduce visibility from the
upper floors of Lots 1, 2, 5, and 6 into the
rear and side yards of adjacent residences
to the west and south:

 A 5-foot-high wall will be built along the
western and south perimeter of Lots 1,
2, 5, and 6.
 Second-floor windows facing west (Lots
1, 2, 5 and 6) have been omitted. Only
the bathroom window, positioned 5 feet
above the floor, remains facing west.
 For Lots 1, 2, 5 and 6, a metal jalousie
is proposed as an architectural element
to reduce indirect visibility from second-
 the architecture company
3957 N Mountain Ave - FLD 2nd Review tac# 25015 COT 3957 N Mountain Ave FLD
TD-DEV-0725-00191
Date: 07/14/26
Page 3 of 5
floor windows not facing west.
 On Lot 6, a metal jalousie is proposed
to be installed on the south-facing
window to reduce direct visibility.
(3) Privacy Mitigation Plan: A Privacy Mitigation
Plan (PMP) is required demonstrating
compliance with this section.

(a) PMPs shall be prepared in accordance with
Section 2-06.5.3.F, Privacy Mitigation Plan,
of the Administrative Manual.
(b) PMPs shall demonstrate that adequate
measures, such as screening, setbacks,
building mass, solar access, air circulation,
and light access are incorporated into the
design of the project to preserve the existing
residents’ privacy.
(c) PMPs shall be included with submittal of the
tentative plat or site plan, whichever is
applicable.
(d) A PMP is reviewed and considered for
approval as part of the subdivision plat, site
plan, or building permit review procedure,
whichever is applicable, with the Design
Professional included as the reviewer of the
AVP. The Design Professional will review
the PMP for compliance with this section
and forward his or her findings and
recommendation in writing to the PDSD
Director for consideration of approval.

(e) The PDSD Director’s decision may be
appealed in accordance with Section 3.9.1,
Design Review Board Appeal Procedure.

(f) Conditions of the approved PMP, including
a description of the required mitigation and
for which units the mitigation applies, shall
be included as notes on the plat or site plan,
whichever applies, and the building plan.
(g) A PMP shall be approved prior to issuance
of a building permit.
Approved - A Privacy Mitigation Plan
(PMP) and PMP Narrativehas been
submitted in accordance with UDC
Administrative Manual Section 2-06.5.3.F
The PMP plan adequately demonstrates
compliance with UDC Section 8.7.3.M.2.a
and Section 8.7.3.M.2.b
3. Solar Access and Passive Solar
a. Solar Access
 the architecture company
3957 N Mountain Ave - FLD 2nd Review tac# 25015 COT 3957 N Mountain Ave FLD
TD-DEV-0725-00191
Date: 07/14/26
Page 4 of 5
Dwelling units should be configured to allow
solar access to adjacent structures in
accordance with Section 7.3, Solar
Considerations.
Complies – An allowance for the use of solar
energy collectors (UDC Section 7.3.1) on the
roof will adequately minimize the adverse
effects of shadows cast from any proposed
multistory structure (UDC Section 7.3.2).
This allowance to be indicated on the Electrical
Plans and shall be reviewed by the Design
Professional prior to issuance of a Building
Permit.
b. Passive Solar:
FLD projects should incorporate passive solar
design when practicable.
Compliance Recommended – See
comments for Solar Access above.

4. Alternative Compliance
Alternative Compliance requests may be
considered for projects requiring compliance
with Section 8.7.3.M.1. These requests shall be
made per Administrative Manual Section 2-
06.5.3.E Architectural Variation Plan.
No Comment – No Alternative Compliance
requests have been submitted.
UDC Administrative Manual
Section 2-06.5 FLEXIBLE LOT DEVELOPMENT
(FLD) – Additional Requirements
Design Professional's Comment:
5.3 Additional Information
E. Architectural Variation Plan:
When applicable, an Architectural Variation
Plan (AVP) is required in accordance with
Section 8.7.3.M.1 of the UDC as follows:
Not Applicable – An Architectural Variation
Plan (AVP) is not required for this FLD
development.
F. Privacy Mitigation Plan: When applicable,
a Privacy Mitigation Plan (PMP) is required in
accordance with Section 8.7.3.M.2.d of the
UDC as follows:
Approved – A Privacy Mitigation Plan (PMP)
has been submitted in accordance with UDC
Administrative Manual Section 2-06.5.3.F.
The PMP plan adequately demonstrates
compliance with UDC Section 8.7.3.M.2.a
and Section 8.7.3.M.2.b
1. Identify on the tentative plat or site plan the
lots and/or units that must provide privacy
mitigation;
Complies – General Note #1 on Site Plan
(Sheet 4 of 12) of the Tentative Plat clearly
identifies that Lots 1, 2, 5 and 6 must provide
privacy mitigation.
 the architecture company
3957 N Mountain Ave - FLD 2nd Review tac# 25015 COT 3957 N Mountain Ave FLD
TD-DEV-0725-00191
Date: 07/14/26
Page 5 of 5
2. Provide photographs of the site plan and
lots and/or units that must provide privacy
mitigation;
Complies – Sufficient photographs of the site
plan and photos of the views looking west
and south from Lots 1, 2, 5 and 6 that must
provide privacy mitigation have been provided
in the PMP.
.
3. Provide a written statement and drawings
(such as elevations and landscape plans)
demonstrating how the proposed mitigation
techniques comply with Section 8.7.3.M.2.b
of the UDC. The plan should include when
practicable additional design elements to
increase privacy such as the siting angle of
buildings, windows, and lots;
Complies – A written Privacy Mitigation
Narrative along with Floor Plan & Elevation
drawings and proposed Landscape Plans for
the units to be constructed on Lots 1, 2, 5
and 6, have been submitted that clearly
demonstrate how proposed mitigation
techniques comply with Section 8.7.3.M.2.b
of the UDC.
Design Professional's Conclusions:
After review, I have determined that the Privacy Mitigation Plan (PMP) for FLD Development
Package # TD-DEV-0725-00191 has been prepared in accordance with UDC Section 2-06.5.3.F
and that the PMP plan adequately demonstrates compliance with UDC Section 8.7.3.M.2.a & b.
End of Review 07/14/2026
Richard Fe Tom, AIA
City of Tucson, Design Professional
06/26/2026 TSMR/PDMR - Engineering REVIEW COMPLETED See TSMR Traffic Engineering review
07/09/2026 TSMR/PDMR - Traffic Engineering REVIEW COMPLETED TSMR approved - Jesus Villezcas
07/01/2026 TSMR/PDMR - Zoning REVIEW COMPLETED See TSMR Traffic Engineering review