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Permit Number: TC-RES-0525-02325
Parcel: 123050520

Review Status: Requires Resubmit

Review Details: RESIDENTIAL NEW DWELLING v.1

Permit Number - TC-RES-0525-02325
Review Name: RESIDENTIAL NEW DWELLING v.1
Review Status: Requires Resubmit
Review Date Reviewer's Name Type of Review Description Status Comments
06/06/2025 Site Engineering - Standard NOT REQUIRED
06/06/2025 Bldg Permits - Post Review Express PENDING ASSIGNMENT
05/29/2025 Residential Building - Standard REQUIRES RESUBMIT TC-RES-0525-02325

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.

Clarify if the proposal is for an addition to the existing dwelling (without kitchen) or a new dwelling with kitchen. A living unit with kitchen is considered a dwelling.

See web site for ADU requirements https://casitas-in-tucson-cotgis.hub.arcgis.com/pages/new-casita

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 an ADU or second dwelling at the time of permit payment.

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.

SITE PLAN:

1. Show the location and size of buildings, utility meters and 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. Show a maximum ½” floor elevation changes at a notated accessible route entrance on the floor plan, R106.1.1. Include all threshold conditions for a route from the exterior into the living space.

SECTIONS - DETAILS:

1. 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 or R-30 when under 500 SF.

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 dwelling and show an appropriate water meter size for the additional demand.
2. Show the water heater rating, P2801.1.

MECHANICAL PLANS:

1. Show the HVAC system size for the building demand in accordance with M1401.3, M1601.1.
2. 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 one-room dwelling under 1501 SF requires a 30 CFM continuous setting.

ELECTRICAL PLANS:

1. Provide a minimum service conductor rating of #3 copper 75 degree C for the 100 AMP feeder, E3602.1 & E3603.1.
2. Update the Riser Diagram showing a service disconnect for each dwelling without service disruption of the other dwelling, NEC 225.30 and E3403.
3. Show the smoke alarm circuit number along with the battery backup, R314.

INTERNATIONAL ENERGY CONSERVATION CODE:

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

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
06/03/2025 Site Zoning - Standard REQUIRES RESUBMIT FROM: PDSD Zoning Review Section

PROJECT: TC-RES-0525-02325
2201 E HAMPTON ST – R-1
Second Dwelling Unit (1st Review)

TRANSMITTAL DATE: June 3, 2025

COMMENTS: Resubmit revised drawings along with a detailed response letter, which states how all Zoning Review Section comments were addressed.

This site is located in 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.6, 8, & 9 and 6.6.3.

1. The property dimensions are not correct. Per the Catalina Vista final plat found at: https://onbase.pima.gov/publicaccess/DS_NextGen_Single/etc/cq/results.html?cqid=240&OBKey__552_1=07032, the north/south property dimension is 135’ and the east/west is 75’. Also there is a 5’ utility easement that runs over the north end of the property. Show this easement on the plan.

2. Provide a perimeter yard setback dimension from the west wall of the 2nd dwelling to the west property line. Based on a wall height of less than 9’-0” the required perimeter yard setback is 6’-0”. If this setback is less than 6’-0” A Design Development Option (DOO) will need to be submitted and approved to reduce the setback.

3. The lot coverage calculation is not correct. Per UDC Article 6.4.3.C.1.a Roofed areas, porches, open on at least one side are not included in the calculation.

4. The front street perimeter yard setback shown under Property Setbacks and labeled on the plot plan is not correct. Review UDC Article 6.4.5.C.1.a and provide the correct street perimeter yard setback.

5. The plan shows site walls located on adjacent properties to the north and west. Provide copies of recorded easements or agreements that allow this encroachment.

DDO application and requirements can be found at: https://www.tucsonaz.gov/Departments/Planning-Development-Services/Planning-Zoning-Applications/Zoning-Administration. If you have questions about the DDO application or process please contact Georgia Pennington at Georgia.Pennington@tucsonaz.gov”.


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.
05/02/2025 PDSD Application Completeness Express REVIEW COMPLETED