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Permit Number: T22CM04544
Parcel: 125060550

Address:
2146 E 4TH ST #2

Review Status: Completed

Review Details: RESIDENTIAL - BLDG/ZONING/ENGINE/NPPO

Permit Number - T22CM04544
Review Name: RESIDENTIAL - BLDG/ZONING/ENGINE/NPPO
Review Status: Completed
Review Date Reviewer's Name Type of Review Description Status Comments
06/17/2022 VFLORES1 PIMA COUNTY - ADDRESSING PIMA COUNTY - ADDRESSING Reqs Change Unit number for proposed ADU is required. Please contact Pima County Addressing Phone # 520-724-9512, Email: Addressing@pima.gov
06/28/2022 STEVE SHIELDS ZONING REVIEW Reqs Change ZONING REVIEW TRANSMITTAL

FROM: PDSD Zoning Review

PROJECT:
T22CM04544
2146 E 4th St – R-1
Convert Workshop to ADU (1st Review)

TRANSMITTAL: June 28, 2022
COMMENTS: the following comments are relative to an application for a Design Development Option (DDO) (UDC 3.11.1).

This site is located in the R-1 zone (UDC 4.7.1). 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. 10.

Perimeter yard setbacks are based on a measurement from design grade to the highest point of the exterior wall UDC Article 6.4.5.B & Figure 6.4.5-A.

The minimum setback is the greater of six (6) feet, or two-thirds (2/3) the height of the structure’s wall facing each interior property line (Table 6.3-2.A).
1. Based on a wall height of 9’-8” the required perimeter yard from the proposed ADU to the west property line is 6’-6”, proposed setback is 3’-0”

A Design Development Option (DDO) must be submitted and approved to reduce the required setback,
DDO application and requirements can be found at: https://www.tucsonaz.gov/files/pdsd/forms/DDO_for_Setback_and_Height_UDC_8.11.20.pdf. A DDO is a separate submittal from the building plan and shall be submitted at: https://www.tucsonaz.gov/pdsd-filedrop, using the Submission Type “Zoning Administration”. If you have questions about the DDO application or process please contact Mark Castro at Mark.Castro@tucsonaz.gov.

If you have any questions about this transmittal, please contact Zone1.desk@tucsonaz.gov.
06/28/2022 SSHIELD1 ENGINEERING REVIEW Passed
07/12/2022 AWARNER1 NPPO REVIEW Approved
07/13/2022 KEN VAN KARSEN BUILDING-RESIDENTIAL REVIEW Reqs Change T22CM04544
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 on 1/1/2019. Show the current code reference on the plans.

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. Update the electric and water lines from meter to building, R106.1.1. Show all utility point of connections without dependance on another dwelling. Update the electric lines from meter to building, R106.1.1. Consider a single multi-meter location on the property.
2. Show a street address for each dwelling on the site plan, R319.

PLANS:

1. Show a maximum ½” floor elevation changes at a notated accessible route entrance on the floor plan, R106.1.1. Include the threshold condition at the vehicle doorway or an exterior hinged door when the garage is used for the accessible route.
2. Notate a cool (white) roof finish as required by the ADU provisions.
3. Show a complete cross-section detail of the new exterior wall, R106.1.1. Show the minimum 12” reinforced footing depth below the undisturbed ground surface R403.1. Show exterior wood siding, sheathing and wall framing with a 6” clearance above the ground, R317.1 item 5. Show exterior wood siding, sheathing and wall framing with a 6” clearance above the ground, R317.1 item 5.

MECHANICAL PLANS:

1. Provide (an HVAC system with fresh air intake) whole-house mechanical ventilation, or controlled exhaust with a calculated airflow rate, R303.4; N1103.6 & M1505.4. Show the system and appropriate flow rate setting on the plans. A one bedroom dwelling under 1501 SF requires a 30 CFM continuous setting.

ELECTRICAL PLANS:

1. TEP may require the service panel for the property at the closest building to the service transformer. A service line change or a new meter location must be coordinated with TEP for approval. Show an underground feeder from a dual meter to the more distant dwelling.
2. Update the Riser Diagram for the close dwelling and the feeder size to the detached dwelling panel, NEC 225.30 and E3403.
3. Designate the circuit number at the location of each light fixture, receptacle, appliance, and equipment disconnect switch, E3404.12.
4. Provide a panel schedule showing panel size, circuit numbers, ampacity, wire size and general description, E3404.13 & E3706.2.
5. Protection of all interior 15A & 20A circuits serving outlet locations (except garage, kitchen, and bathrooms) including receptacles, lights and smoke detectors requires combination type arc-fault circuit interrupters, E3902.16.
6. Specify high-efficacy lamps for at least 90% of all lighting fixtures, N1104.1.

INTERNATIONAL ENERGY CONSERVATION CODE:

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

Please contact the plans reviewer if you have any questions:
Ken Van Karsen
(520) 837-4912 PDSD-Residential@tucsonaz.gov
City of Tucson Residential Plan Review