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Permit Number: T22CM03610
Parcel: 115010770

Review Status: Completed

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

Permit Number - T22CM03610
Review Name: RESIDENTIAL - BLDG/ZONING/ENGINE/NPPO
Review Status: Completed
Review Date Reviewer's Name Type of Review Description Status Comments
05/11/2022 GSLEIGH1 PIMA COUNTY - ADDRESSING PIMA COUNTY - ADDRESSING Reqs Change ADU requires applicant to contact Pima County Addressing to add unit numbers - each dwelling unit must have unique address.
05/12/2022 PAUL CAMARENA ZONING REVIEW Reqs Change FROM: Paul Camarena
PDSD Zoning Review Section

PROJECT: T22CM03609, T22CM03610
ADU/ Carport to bedroom
2202 N LOS ALTOS AV Zoning R-2

TRANSMITTAL DATE:?May ?12,2022
COMMENTS: Please resubmit revised drawings and any redlined plans along with a detailed response letter, which states how all Zoning Review Section comments were addressed.

1.COMMENT: Draw dimension and label the height of the new structure measured from design grade to top of wall. Label the elevation drawing to show which elevation is for what structure.

The following comments are regarding the ADU.
2. COMMENT: Please provide a parking space per UDC section 6.6.3.B.2: In addition to parking required for the principal use , one parking space shall be provided for the accessory dwelling unit . The parking requirement may be satisfied with available on-street parking or waived if the site is within ¼ mile walking distance of a transit stop or an enhanced bike route as listed in the Bike Boulevard Master Plan. Parking provided is exempt from Section 7.6.4, Landscape Standards.
3.COMMENT: 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. Provide the information noted by the standard above.

If you have any questions about this transmittal, Contact Paul Camarena at (520)837-4986 or by email Paul.Camarena@tucsonaz.gov
05/12/2022 PCAMARE1 ENGINEERING REVIEW Passed
05/12/2022 PCAMARE1 NPPO REVIEW Passed
06/07/2022 KEN VAN KARSEN BUILDING-RESIDENTIAL REVIEW Reqs Change T22CM03610
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:

A living space with cooking features (An ADU) is an independently functioning dwelling and requires compliance with the 2018 IRC and City of Tucson building ordinances for Family Dwelling requirements.

Each dwelling unit with kitchen requires a separate Pima County assigned street address, R319. Notate each dwelling address on the site plan (or remove cooking appliances).

A new dwelling unit requires collection of development impact fee when the building permit is processed, City of Tucson Ordinance #11203.

GENERAL COMMENTS (for dwelling with kitchen):

1. A dwelling unit (living space with kitchen) providing complete independent living facilities requires compliance with design ordinances for handicap, solar water, photo-voltaic, gray water and EV charging preparations. Design Ordinances adopted by the City of Tucson.
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.
3. All SFR and Duplex plans submitted after March 1, 2009 require a solar water system, or future installation preparation City of Tucson Ordinance #10549 with one of the following provisions: ½”control conduit and two ¾” copper piping for water with rooftop termination; straight 3” capped sleeve; or an accessible attic (clear path 30” wide x 30” high) over the water heater. Show appropriate notation.
4. All SFR and Duplex plans submitted after July 1, 2009 require a solar photo-voltaic system, or future installation preparation City of Tucson Ordinance #10549 .
a. Show a minimum 300 SF clear solar-ready zone on a roof or framing plan, T103.3. Model plans should show four typical south facing roof surfaces.
b. Label a double breaker space for future Photo Voltaic on the panel schedule opposite end from the main/supply side, T103.9. Update breaker space location.
5. All construction drawings submitted after June 1, 2010 for one- or two-family dwellings 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. Additional gray fixture drains are optional. Show a second clothes washer standpipe plumbed to an exterior wall above grade when feasible, or a bathing fixture drain looped 3’ beyond an exterior wall below grade before connection to the building drain. See details for compliance at https://www.tucsonaz.gov/pdsd/water-energy-conservation
6. Show compliance with the Electric Vehicle Supply Equipment Ordinance adopted by the City of Tucson Ordinance #11844 on 6/22/2021. Include a 40 ampere 240 volt dedicated branch circuit with a NEMA 14-50R receptacle for charging an electric vehicle at a proposed parking space or show the distance from transit or a bike boulevard as not greater than a quarter-mile.

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. 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.

FRAMING PLANS:

1. Show the beam size for supporting the porch roof, R301.1.

SECTIONS - DETAILS:

1. Clarify the placement of ceiling/roof insulation for determining the need for attic ventilation or need for providing air-impermeable rigid insulation at the roof, R806.
2. Attic space requires a ventilation calculation for showing the attic vent opening size using 1 to 150 of attic area in compliance with R806.2. Provide appropriate upper and lower space vents when applying the reduced area calculation.

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 two or three bedroom dwelling under 1501 SF requires a 45 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.
2. Update the Riser Diagram for the close dwelling and the feeder size to the detached dwelling panel, NEC 225.30 and E3403. Show a Riser Diagram providing service disconnect of either dwelling without service disruption of the other dwelling.
3. 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.
4. Provide the Electric Vehicle Supply Equipment 40 ampere 240 volt dedicated branch circuit with a NEMA 14-50R receptacle and label the circuit “EV Ready” and locate the receptacle at a parking area, N1104.2.1. Include the Electric Vehicle load entry (typically 7680 watts) in the electrical load calculations (continuous demand) like the HVAC entry, N1104.2.2.

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