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Permit Number: T22CM05379
Parcel: 117031930

Address:
720 N ALDER AV

Review Status: Completed

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

Permit Number - T22CM05379
Review Name: RESIDENTIAL - BLDG/ZONING/ENGINE/NPPO
Review Status: Completed
Review Date Reviewer's Name Type of Review Description Status Comments
07/26/2022 STEVE SHIELDS ZONING REVIEW Reqs Change ZONING REVIEW TRANSMITTAL

FROM: PDSD Zoning Review

PROJECT:
T22CM05379
750 N Alder Ave - C-1
Convert Storage to ADU w/Additions (1st Review)

TRANSMITTAL: July 26, 2022

The following comments need to be addressed prior to applying for the required Board of Adjustment:

1. The provided lot coverage is not correct. Review UDC Article 6.4.3 and the lot coverage calculation 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 on the plan. Per UDC Article 6.4.3.B.3.b vehicle use area is included in the lot coverage whether improved or unimproved.

2. Per UDC Article 6.6.3.B.4 On sites where the principal structure is one story, accessory dwelling units shall not exceed 12 feet in height. Per UDC Article 6.4.4.A Measurement of Building Height is the vertical distance measured from the design grade elevation to the highest point of a flat roof. Provide a building height dimension on the elevations. If this height exceeds the allowed 12’ a Board of Adjustment for variance will be required.

3. Per UDC Article 6.6.3.E The total gross floor area (gfa) of all accessory structures shall not exceed 50% of the gfa of the principal structure. Based on the dimensions provide on the floor plan it appears the 50% gfa has been exceeded. A Board of Adjustment for variance will be required.

4. Demonstrate on the plot plan that the requirements of UDC Articles 6.6.3.B.2, .3
COMMENTS: The following comments are for the purpose of applying for a variance before the Board of Adjustment (UDC Section 3.10.1).

COMMENTS: the following comments are relative to an application for a Board of Adjustment Variance (UDC 3.11.1).

This site is located in the C-1 zone (UDC 4.7.20). A Single-family , Detached with an ADU is permitted use in this zone (UDC Table 4.8-4, with the ADU subject to UDC Article 6.6.3.

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 10’ (10) feet, or three quarters (3/4) the height of the structure’s wall facing each interior property line (TABLE 6.3-4.A).
As wall heights were provided from finished floor not design grade Zoning has added 6” to the provided heights to determine required perimeter yard setbacks.
1. Based on a wall height of 14’-0” the required perimeter yard setback from the proposed ADU to the south property line is 10’-6”, proposed setback is 0’-6”.

Board of Adjustment application/requirements can be found at: https://www.tucsonaz.gov/files/pdsd/codes/Zoning_Administration_Application_BA_fillable.pdf. The Board of Adjustment is a separate submittal from this building plan and is submitted at: https://www.tucsonaz.gov/pdsd-filedrop, using the Submission Type “Zoning Administration”. Contact of the Board of Adjustment is Mark Castro at Mark.Castro@tucsonaz.gov.

If you have any questions about this transmittal, please contact Zone1.desk@tucsonaz.gov.
07/26/2022 SSHIELD1 ENGINEERING REVIEW Passed
07/27/2022 KEN VAN KARSEN BUILDING-RESIDENTIAL REVIEW Reqs Change An unpermitted building may not be approved for alteration without a comleted set of construction plans of the existing building showing 2018 IRC compliance.

A building placed within the 3 foot fire separation distance to property line requires one-hour fire rated construction in compliance with 2018 IBC Table 721.1(2), Items 15-1.1 to 16-1.3.
08/15/2022 AWARNER1 NPPO REVIEW Approved