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Permit Number: TC-RES-1122-01069
Parcel: 11928002B

Review Status: Requires Resubmit

Review Details: RESIDENTIAL NEW DWELLING v.1

Permit Number - TC-RES-1122-01069
Review Name: RESIDENTIAL NEW DWELLING v.1
Review Status: Requires Resubmit
Review Date Reviewer's Name Type of Review Description Status Comments
12/16/2022 Site Engineering NOT REQUIRED
12/28/2022 Bldg Permits - Post Review PENDING ASSIGNMENT
12/14/2022 Residential Building REQUIRES RESUBMIT TC-RES-1122-01069
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 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.

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

GENERAL COMMENTS :

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 to the last panel space.
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. Use the appropriate detail 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. TEP may require the service panel for the property at the closest building to the service transformer with an underground feeder from a dual meter to the more distant dwelling.
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. 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. 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.

PLUMBING PLANS:

1. Tucson Water Department limits flow rates for each water meter size in compliance with P2903.7. Show an appropriate yard pipe bypassing the existing dwelling and the water meter size.

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 of 1501 – 3000 SF requires a 60 CFM continuous setting.
2. Provide demand calculations in accordance with Manual J/S/D standards, M1401.3, M1601.1. Systems shall be sized in accordance with Manual S based on building loads calculated in accordance with Manual J and duct systems sized in accordance with Manual D. Notate if the mechanical plans if system calculations will be provided by deferred submittal.

ELECTRICAL PLANS:
1. 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.
2. 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

Submit a corrected plan set at https://www.tucsonaz.gov/pdsd
12/05/2022 Site Zoning REQUIRES RESUBMIT ShapeShape

FROM: PDSD Zoning Review





PROJECT:



TC-RES-1122-01069

2725 S Thrasher Ave – MH-1

2nd Dwelling Unit (1st Review)





TRANSMITTAL: December 05, 2022

This site is located in the MH-1 zone (UDC 4.9.10). A single-family residence (SFR) is a permitted use in this zone (Table 4.8-4).



The perimeter yard setback line shown on the plans is not correct. Remove this line from the plan and provide a setback dimension from the proposed 2nd dwelling unit to the north, south and west property lines. The north and south is based on 6’-0” or 2/3 the height of the building wall and the west is 20’-0” or 1-½ the height of the building wall, greater of the two.



Review UDC Article 6.4.3 and the example shown on the Residential Plot Plan Requirements found at: https://www.tucsonaz.gov/files/pdsd/forms/Residential_Plot_Plan_Requirements.pdf, and provide a lot coverage calculation.



Provide a full floor plan for the existing house so that vehicle parking requirements can be verified. If the required number of vehicle parking spaces exceeds 4 a vehicle use area meeting the requirements of UDC Articles 7.4.6 & 7.6.4 will be required.



If you have any questions about this transmittal, please contact Zone1.desk@tucsonaz.gov.
12/28/2022 Fire New Construction REVIEW COMPLETED
12/01/2022 PDSD Application Completeness REVIEW COMPLETED