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Permit Number: TC-RES-0825-03853
Parcel: 107111260

Review Status: Requires Resubmit

Review Details: RESIDENTIAL ADD/ALT v.2

Permit Number - TC-RES-0825-03853
Review Name: RESIDENTIAL ADD/ALT v.2
Review Status: Requires Resubmit
Review Date Reviewer's Name Type of Review Description Status Comments
09/08/2025 Residential Building - Standard APPROVED 1. All construction shall comply with the International Residential Code (IRC) 2018 and Pima County local Amendments.
2. All Concrete shall be a minimum of 2500 psi.
3. All Wood to be #2 Douglas Fir or better.
4. Framing based on 30 lbs load.
5. Minimum Ceiling Height 7’, 6’-6” to beam.
6. Maximum post height shall be 10’ from finished grade. (Or provide engineering)
7. Soil bearing pressure minimum1500 psf. (Table R401.4.1)
09/08/2025 Bldg Permits - Post Review Express PENDING ASSIGNMENT
08/08/2025 Addressing Validation REQUIRES RESUBMIT Please request a change of address in sub records and add unit number to the site plan address on all pages.
09/08/2025 Site Zoning - Standard REQUIRES RESUBMIT ZONING REVIEW TRANSMITTAL

FROM: PDSD Zoning Review

PROJECT:
TC-RES-0825-03853
3131 N CASTRO AV – O-3
2nd Dwelling Unit (1st Review)

TRANSMITTAL: September 8, 2025

Resubmittal requires a detailed response letter, which states how all Zoning Review Section comments were addressed.

This site is located in the O-3 zone (UDC 4.7.15). A single family residence is an allowed use in the Zone, (UDC Table 4.8-3).


1. The lot coverage does not appear to be correct and should include all structures that are to remain on site.

2. Perimeter yard setbacks are based on a wall height measurement from design grade to the highest point of the exterior wall UDC Article 6.4.5.B & Figure 6.4.5-A. Provide fully dimensioned elevations with the next submittal.

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

The minimum setback is the greater of ten (10) feet, or three-quarters (3/4) the height of the structure’s wall facing each interior property line (Table 6.3-3.A).

1. Based on what appears to be a wall height of less than 13’-4” the required perimeter yard setback from the proposed addition to the south property line is 10’-0”, proposed setback is 8’-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/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.
08/08/2025 PDSD Application Completeness Express REVIEW COMPLETED