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Permit Review Detail

Permit Number: TC-RES-0926-05002
Parcel: 131121420

Address:
6125 E 31ST ST

Review Status: Requires Resubmit

Review Details: RESIDENTIAL ADD/ALT v.1

Permit Number - TC-RES-0926-05002
Review Name: RESIDENTIAL ADD/ALT v.1
Review Status: Requires Resubmit
Review Date Reviewer's Name Type of Review Description Status Comments
09/17/2026 Bldg Permits - Post Review Express PENDING ASSIGNMENT
09/11/2026 Addressing Validation REQUIRES RESUBMIT For questions: PDSD-Permits@tucsonaz.gov. Requires resubmit. The site plan is missing full project address. Please resubmit site plan with full address, once the initial review has been completed.
Here are the Step-by-Step instructions on how to resubmit: https://www.tucsonaz.gov/files/sharedassets/public/pdsd/documents/tdc-faq/new-pdfs/revisions-and-resubmittals.pdf
09/16/2026 Residential Building - Standard REQUIRES RESUBMIT TC-RES-0926-05002
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 2024 International Residential 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 2024 IRC with amendments and building ordinances for all dwellings.

Place the reference code for the design on the 1st sheet of the construction plan set.

A permit requires the correct application type. Request the cancellation of this application for an addition/alteration permit and apply for a new dwelling permit. The remodel of an existing dwelling would include the relocation of an existing permitted kitchen area. This addition/alteration application may continue if a past permit is identified for the construction of the dwelling with kitchen.

Each dwelling unit with kitchen requires a separate Pima County assigned street address after Zoning approval, R319. Show Pima County assigned unit numbers at each dwelling on the site plan. https://www.pima.gov/1010/Addressing-Frequently-Asked-Questions

An impact fee payment is required for a new ADU at the time of permit payment.

Provide a separate response letter addressing each comment with location of change on the plans.

GENERAL COMMENTS:

1. Provide a clear and concise construction plan set. Sample plans are available at https://www.tucsonaz.gov/Departments/Planning-Development-Services/Permits/Plan-Examples/Floor-Plan-Example
2. 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. https://www.tucsonaz.gov/Departments/Planning-Development-Services/Codes/Building-Codes


SITE PLAN:

1. Show the size of the addition, R106.1.1.

PLANS:

1. Provide a complete roof framing plan with beams and rafters sized with appropriate prescriptive load carrying capacity, R301.1 or provide an engineer’s sealed plan set for performance compliance consideration, R301.1.3.
2. Provide a minimum 6 mil polyethylene vapor retarder with joints lapped not less than 6 inches between the concrete floor slab and the base course or the prepared subgrade where a base course does not exist, R506.3.3.

SECTIONS - DETAILS:

1. Provide a 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, water-resistive barrier 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. Clarify the placement of ceiling/roof insulation for determining the need for attic ventilation, 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 sheathing, R806.5. Show a roof design with insulation types and minimum thickness for meeting the condensation control requirement and the minimum total insulation value of R-38.

MECHANICAL PLANS:

1. Clarify the flow rate of each exhaust fan, M1505.
2. Show a bathroom (without a window) exhaust fan location ducted to the exterior and flow rate, R325.2 and M1505.2.

PLUMBING PLANS:

1. Show an individual accessible water supply shut off and water heater for the proposed dwelling unit, P2903.9.1.
2. Provide waste plumbing showing the size of waste lines, vents and required clean-outs, P3005.4.
3. Show the water heater rating/capacity for consistence with the electrical circuit size, R106.1.1 & IPC 502.5.

ELECTRICAL PLANS:

1. Smoke alarms are required outside each separate sleeping area, R310.3.2.
2. Provide a panel schedule showing panel size, circuit numbers, ampacity, wire size and general description, E3404.13 & E3706.2.
3. Show a surge-protective device (SPD) as an integral part of or placed immediately adjacent to the service equipment, E3606.5.
4. Show the smoke alarm circuit on the panel schedule, R310.
5. Show two or more 2O AMP small appliance circuits at the kitchen countertop receptacle outlets; they may also serve the breakfast room and dining room, but not other locations, E3703.2 and E3901.3.
6. Show Bathroom receptacles with a separate 20 AMP dedicated circuit, E3703.4 and E3901.6.
7. Provide GFCI protection for appliance receptacle outlets, E3902.12 & 14. Include the Electric range, Microwave oven and HVAC.
8. Interior 15A & 20A circuits serving outlet locations (except garage, kitchen, and bathrooms) including receptacles, lights, and smoke detectors require combination type arc-fault circuit interrupters, E3902.20. Add notation to plans.

INTERNATIONAL ENERGY CONSERVATION CODE:

1. Habitable spaces, laundry/utility rooms, garages and basements require automatic shutoff control for turning off lighting within 20 minutes after occupants leave the space, IECC R404.2.

If you have any questions, please contact:
Kenneth.VanKarsen@tucsonaz.gov
City of Tucson Residential Building Safety
09/17/2026 Residential Zoning REQUIRES RESUBMIT PDSD TRANSMITTAL

FROM: Roxanne Johnston, Planner

PROJECT: TC-RES-0926-05002
6125 E 31st St.,Tucson AZ 85711
ADU (1st Review)

TRANSMITTAL DATE: 09/17/2026

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

RESUBMITTAL OF THE FOLLOWING IS REQUIRED: Correct plans, as noted in the comments below, along with a response letter indicating how all Site Zoning comments were addressed.

1. Please see Residential Building comments from 09/16/26 regarding the requirement for canceling this permit application and submitting an application for a new accessory dwelling unit.
2. The ADU will require its own address which will need to be shown on every page of the packet. For example, it will likely be addressed 6125 E 31st St. Unit 2. Pima County handles addressing. Please use the following link to get started on addressing the ADU: https://www.pima.gov/addressing

3. A Full site plan is required for the new permit application discussed above. Please visit the following link to the Full site plan requirements (example included on page 3): https://www.tucsonaz.gov/Departments/Planning-Development-Services/Permits/Plan-Examples/Site-Plan-Examples
4. Per Unified Development Plan (UDC) 7.6.8., landscape a landscape plan is required for all new single family residential…and accessory dwelling units. Please know that it is not necessary to hire a landscape architect and follow this link and examples for a landscape plan that will be added on the Full site plan: https://middle-housing-cotgis.hub.arcgis.com/pages/Residential-Landscaping-Code

5. Per the City of Tucson Inclusive Home Ordinance 10463: all new dwellings have a requirement to provide an “accessible route from public and common areas, including, but not limited to, a driveway or public street or sidewalk”. On the site plan, draw, dimension, and label an accessible route from the driveway, sidewalk, or street to an accessible entrance. Ensure the route meets accessibility standards as articulated in Sections 402-404 of the Accessibility Standards. See also Technical Standards Manual 7-01.4.3 (Pedestrian Access) for specifications, including the minimum 4ft-width, slope and permissible composition materials. https://codelibrary.amlegal.com/codes/tucson/latest/tucson_az_udc/0-0-0-11581

6. When submitting under the new permit number (see Comment 1), please include the following:
a. Full site plan containing the landscape and ADA access information
b. Construction plans.
c. Comment Response Letter addressing all staff comments.

7. Additional comments may be forthcoming depending on responses to zoning review comments and plans submitted for the next review.
The City of Tucson Unified Development Code may be accessed here: www.tucsonaz.gov/Departments/Planning-Development-Services/Codes/Zoning-Code .

If you have any questions about this transmittal, please contact Roxanne Johnston at roxanne.johnston@tucsonaz.gov
09/11/2026 PDSD Application Completeness Express REVIEW COMPLETED