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Permit Number: TC-RES-0725-03473
Parcel: 125160350

Review Status: Requires Resubmit

Review Details: RESIDENTIAL NEW DWELLING v.1

Permit Number - TC-RES-0725-03473
Review Name: RESIDENTIAL NEW DWELLING v.1
Review Status: Requires Resubmit
Review Date Reviewer's Name Type of Review Description Status Comments
07/17/2025 Site Engineering - Standard NOT REQUIRED
08/11/2025 Bldg Permits - Post Review Express PENDING ASSIGNMENT
08/07/2025 Residential Building - Standard REQUIRES RESUBMIT TC-RES-0725-03473

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.

GENERAL COMMENTS :

1. Show compliance with the Inclusive Home Design Ordinance adopted by the City of Tucson Ordinance #10463 on 10/16/2007. Notate accessible route, minimum door width, changes in floor elevation, door hardware, electrical outlet reach range, grab bar reinforcement, etc.

SITE PLAN:

1. Show the location of the proposed electrical subpanel feeder, R106.1.1. Each dwelling requires an appropriate source of electrical and water supply. Identify the utility lines requiring upgrade or replacement.
2. Each dwelling building requires a street address and a separate permit, R319. Show Pima County assigned unit numbers at each dwelling on the site plan

PLANS:

1. Show a maximum ½” floor elevation changes at a notated accessible route entrance on the floor plan, R106.1.1. Include all threshold conditions for a route from the exterior into the living space.

SECTIONS - DETAILS:

1. Provide an enclosed garage door opening wall section detail with reinforced foundations for anchoring exterior framed walls with pressure treated sills including ½” anchor bolts with 7” embedment, R403.1.6.
2. Show exterior wood siding, sheathing and wall framing with a 6” clearance above the ground (R317.1 item 5). The weep screed may extend with a minimum clearance 4” above grade or 2” above paved areas, R703.7.2.1.
3. Provide attic vent opening sizes using 1 to 150 of attic area in compliance with R806.2.

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. Show an appropriate yard pipe location with connection between the existing dwelling and the meter.
2. Show an individual accessible water supply shut off and water heater for the proposed dwelling unit, P2903.9.1.
3. 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 one-bedroom dwelling under 1501 SF requires a 30 CFM continuous setting.

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
08/11/2025 Site Zoning - Standard REQUIRES RESUBMIT FROM: PDSD Zoning Review Section

PROJECT: TC-RES-0725-03473
3625 E CALLE ALARCON Unit: 2 – R-1
Convert Garage into ADU (1st Review)

TRANSMITTAL DATE: August 11, 2025

COMMENTS: Provide a detailed response letter with your submittal that clearly shows how you have addressed all Zoning comments.

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

1. The adjacent zoning shown on the Zoning chart is not correct and should be R-1 for all adjacent properties.

2. The “LOT AREA-MINIMUM 10,000 SQ. FT.” listed under Project Data is not correct and should be 7,000 Sq. Ft.. UDC Table 6.3-2.A & UDC Article 6.6.3.B.1.

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

If you have any questions about this transmittal, please contact Zone1.desk@tucsonaz.gov.
07/15/2025 PDSD Application Completeness Express REVIEW COMPLETED