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Permit Number: TC-RES-0625-03175
Parcel: 138060110

Review Status: Requires Resubmit

Review Details: RESIDENTIAL NEW DWELLING v.1

Permit Number - TC-RES-0625-03175
Review Name: RESIDENTIAL NEW DWELLING v.1
Review Status: Requires Resubmit
Review Date Reviewer's Name Type of Review Description Status Comments
06/26/2025 Site Engineering - Standard NOT REQUIRED
07/25/2025 Bldg Permits - Post Review Express PENDING ASSIGNMENT
06/25/2025 Addressing Validation REQUIRES RESUBMIT It appears you submitted with Pima County Addressing but unit numbers have not been added in our system yet. The site plan shows to be for a second unit/ADU. The location does not have units attached to the address and does not appear to be associated with a parcel. Please contact Pima County Addressing at addressing@pima.gov or 520-724-9512 to verify and add the units. After address/units have been added or verified you'll need to submit an address change request through sub records to update this record along with a new site plan that shows the unit number in the address.
For questions: Building_Official@tucsonaz.gov
07/16/2025 Residential Building - Standard REQUIRES RESUBMIT TC-RES-0625-03175

PLAN REVIEW COMMENTS

Plan review for the above referenced structure has been completed. This letter reflects comments to be addressed. For facilitating a shorter back check time, please provide updated plans and calculations with a written response to each of the notated items indicating action taken. Do not cloud the changes made for comment updates; revisions are processed if changes occur after the permit is issued.

SCOPE OF REVIEW:

The scope of this plan review covers architectural, plumbing, mechanical, energy conservation and electrical. All code references are to the 2018 International Residential Code and 2018 International Energy Conservation Code. All features were checked only to the extent allowed by the submittals provided. All portions of this project are assumed to meet or will meet other departmental requirements, conditions, and concerns before permit approval.

GENERAL REQUIREMENTS:

The City of Tucson adopted the 2018 IRC with amendments and building ordinances for all dwellings.

Provide a response letter addressing each comment with location of change on the plans. Submit separate letter and plan set files.

PLANS:

1. Notate a cool (white) roof finish (greater than 60 SRI) as required by the ADU provisions.

PLUMBING PLANS:

1. The Tucson Water Department limits flow rates for the water meter size in compliance with P2903.7. Show an appropriate water meter size for the additional demand.
2. Show the water heater rating, P2801.1.

MECHANICAL PLANS:

1. Provide (an HVAC system with fresh air intake) whole-house mechanical ventilation with controlled exhaust, R303.4; N1103.6 & M1505.4. Identify the device model number providing an adjustable setting and note the minimum continuous setting. A two or three-bedroom dwelling under 1501 SF requires a 45 CFM continuous setting. Update the setting note.

ELECTRICAL PLANS:

1. Update the Riser Diagram showing a service disconnect for both the primary and ADU dwelling, E3403. Show the ADU feeder size and appropriate breaker requirement, E3602.1 & E3603.1.
2. Provide an electrical load calculation determining the total demand of both dwellings and update the riser diagram, E3602.2. Revise the ADU sub panel calculation in compliance with E3705.

INTERNATIONAL ENERGY CONSERVATION CODE:

1. Energy Certificate: (Mandatory) place near the indoor furnace or in utility room, N1101.14. Add notation to plans.

If you have any questions, please contact:
Ken Van Karsen
PDSD-Residential@tucsonaz.gov
City of Tucson Residential Plan Review

Submit a corrected plan set at https://www.tucsonaz.gov/pdsd
07/25/2025 Site Zoning - Standard REQUIRES RESUBMIT PDSD TRANSMITTAL

FROM: Jeffrey W. Cassidy, Planner
Planning & Development Services Department – Current Zoning Review Section

PROJECT: TC-RES-0625-03175 – Residential Building – New ADU
918 W Santa Maria St Tucson, AZ 85706 (R-1 Zoning)
Building Plan Review – 1st Review

TRANSMITTAL DATE: July 25, 2025

This site is in the R-1 zone (UDC 4.7.8). A single-family residence is permitted use in this zone (Table 4.8-2) subject to Use Specific Standards 4.9.7.B.5 - .9.

Plan review for the above referenced new ADU has been completed. This letter reflects comments to be addressed. For facilitating a shorter back check time, please provide updated plans and calculations with a written response to each of the notated items indicating action taken. Do not cloud the changes made for comment updates; revisions are processed if changes occur after the permit is issued.

SCOPE OF REVIEW:
The scope of this plan review covers zoning, use(s), legal description, adjacent properties, setbacks (building or wall heights), dimensional standards, property permitting history, density (units/lot size), and lot calculation (enclosed building and structure, parking, and driveway versus overall lot size) requirements. All code references are to the Tucson, AZ Unified Development Code. All features were checked only to the extent allowed by the submittals provided. All portions of this project are assumed to meet or will meet other departmental requirements, conditions, and concerns before permit approval.

RESUBMITTAL OF THE FOLLOWING IS REQUIRED:
Correct the following plot (site) plan and elevation drawings, as noted in the comments below, along with a detailed response letter indicating responses to the review comments.

PLANS:

1. COMMENT: The site plan provided is incomplete. Provide a site plan that meets the requirements show in the plot plan example at the following link: https://www.tucsonaz.gov/Departments/Planning-Development-Services/Permits/Plan-Examples/Plot-Plan-Example

Of note, update the following:

a) Scale depicted near site plan and title block is not representative of actual drawing and dimensions. Update drawing, dimensions and/or scale to reflect actual property.

b) Paved driveway is not graphically accurately depicting site conditions. Additionally, it’s clear the land to the east of this driveway is also being used as a driveway and parking. Update accordingly, label and provide square footage. Update Lot coverage calculations.

c) There is a concrete masonry unit wall (and gate) to the east of the carport (incorrectly labeled on the plans as an existing front porch). Include on plans graphically, label and provide accurate height. Remove graphic on site plan that is depicting this as a parking spot.

d) Per Book 9, Page 125 Subdivision Plat Map, the east property line length is 137.83’ (correct the 81.84’ currently depicted to be 81.83’ for total math to equate to 137.83’).

e) Setback note incorrectly includes “or 1.5 times to the height of the building wall”. Update accordingly.

2. COMMENT: Per 6.6.3.B.4, “If the accessory dwelling unit is built as a new structure, it must be developed with a high albedo level (>60 SRI) or other cool roof technology per the ICC Green Construction Code.” Update elevation drawings to include this specification.

3. COMMENT: Additional comments may be forthcoming on the next review based on responses to Zoning and other the PDSD reviewer comments.

The Unified Development Code (UDC) can be found at: https://www.tucsonaz.gov/Departments/Planning-Development-Services/Codes/Zoning-Code .

Please contact the zoning reviewer if you have any zoning questions:

Jeffrey W Cassidy
City of Tucson Site Zoning and Planning Reviewer
jeffrey.cassidy@tucsonaz.gov / (520) 837-4916

Additionally, our in-person counter at the Public Works building at 201 N Stone Ave Tucson, AZ 85701 is open and available Monday thru Thursday, 8am-12pm. Ask to speak with me for an in-person consultation to go over my comments if you feel this option will better serve your follow up needs.

Submit a corrected plan set at https://www.tucsonaz.gov/Departments/Planning-Development-Services
06/25/2025 PDSD Application Completeness Express REVIEW COMPLETED