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Permit Number: TC-RES-0625-02831
Parcel: 138102220

Review Status: Requires Resubmit

Review Details: RESIDENTIAL NEW DWELLING v.1

Permit Number - TC-RES-0625-02831
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
07/02/2025 Bldg Permits - Post Review Express PENDING ASSIGNMENT
06/26/2025 Residential Building - Standard REQUIRES RESUBMIT TC-RES-0625-02831
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. Show the current code reference on the plans.

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.
2. All plans submitted for a newly constructed one- or two-family dwelling after June 1, 2010, must provide gray water utilization or preparation, Ordinance #10579/11089 revised July 9, 2013. The ordinance revision now requires a gray drain line discharge from one fixture for a one-story dwelling. Show a second clothes washer standpipe plumbed to an exterior wall above grade. Use the appropriate detail at https://www.tucsonaz.gov/Departments/Planning-Development-Services/Building-Safety/Water-Energy-Conservation Gray Water Illustrations

SITE PLAN:

1. Show the location of utility meters and gas, water, electrical, and sewer, R106.1.1. Each dwelling requires an appropriate source of electrical and water supply. Show the location and size of lines with connection points, R106.1.1. Identify the utility lines requiring upgrade or replacement.

PLANS:

1. Notate a cool (white) roof finish (greater than 60 SRI) as required by the ADU provisions.
2. Provide manufacturer’s calculations and data for pre-engineered trusses dated and wet-sealed by an engineer who is registered in Arizona, or notate the requirement for deferred submittal, R106.1.

SECTIONS - DETAILS:

1. Show the location and size of attic ventilation openings, R806. Attic space outside of the thermal barrier requires a ventilation calculation for showing the attic vent opening size using 1 to 150 of attic area in compliance with R806.2 or an unvented roof assembly requires an air-impermeable rigid insulation material with a minimum R-5 value applied correctly to either side of the roof.

PLUMBING PLANS:

1. The Tucson Water Department limits flow rates for the water meter size in compliance with P2903.7. Show an appropriate yard pipe bypassing the existing dwellings and show an appropriate water meter size for the additional demand.
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. Update the title block description, R106.1.1.
2. Provide demand calculations in accordance with Manual J standards, M1401.3, M1601.1.
3. 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.

ELECTRICAL PLANS:

1. Provide an electrical load calculation determining the total demand of both dwellings and update the riser diagram, E3602.2.
2. Provide a minimum service conductor rating of #3 copper 75 degree C for the 100 AMP feeder, E3602.1 & E3603.1.

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
07/02/2025 Site Zoning - Standard REQUIRES RESUBMIT FROM: PDSD Zoning Review Section

PROJECT: TC-RES-0625-02831
5849 S 6TH AV Unit:3. – R-2
New ADU (1st Review)

TRANSMITTAL DATE: July 2, 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-2 zone (UDC 4.7.9). A single-family residence (SFR) w/ an accessory dwelling unit (ADU) is a permitted use in this zone (Table 4.8-2). See Use-Specific Standards 4.9.7.B.6, 8, & 9 and 6.6.3.

1. Provide a residential plot plan that meets the requirements found at: https://www.tucsonaz.gov/Departments/Planning-Development-Services/Permits/Plan-Examples/Plot-Plan-Example, to include but not limited to:
a. The plot plan shall be drawn at an engineering scale, i.e. 1” = 10’, 1” =20’.
b. Provide the property dimensions on the plot plan.
c. Remove the reference to NUOS from the plan as this parcel does not have any NUOS on it..
d. Provide the owners name on the plot plan.
e. Provide the legal description “EMERALD SQ20241590419 LOT 2” on the plot plan.

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.
06/04/2025 PDSD Application Completeness Express REVIEW COMPLETED