Permit Review Detail
Review Status: In Review
Review Details: RESIDENTIAL ADU v.1
Permit Number - TC-RES-0326-01569
Review Name: RESIDENTIAL ADU v.1
Review Status: In Review
| Review Date | Reviewer's Name | Type of Review | Description | Status | Comments |
|---|---|---|---|---|---|
| N/A | Bldg Permits - Post Review Express | PENDING ASSIGNMENT | |||
| N/A | Residential Engineering | PENDING ASSIGNMENT | |||
| N/A | Residential Zoning | PENDING ASSIGNMENT | |||
| 04/09/2026 | Residential Building | REQUIRES RESUBMIT | TC-RES-0326-01569 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 2024 International Residential 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 2024 IRC with amendments and building ordinances for all dwellings. Place the adopted 2024 IRC reference code on sheet C-1 rather than throughout the plans. A permit requires the correct application type. Request the cancellation of this application for a new dwelling and apply for an addition/alteration permit. These plans do not include a cooking appliance such as a stove, but the application requests an ADU. The addition/alteration permit will become a great cost savings because a dwelling permit requires features not necessary for the space without the cooking appliance. Provide a separate response letter addressing each comment with location of change on the plans. Submit the letter with the new addition/addition application after submitting a cancellation of this ADU permit. PLANS: 1. Remove all outdated code references, R106.1.1. Incorrect entries were found on sheets C-1, S-1 & MEP-1. See red lined plans. 2. Provide a minimum 6 mil polyethylene vapor retarder with joints lapped not less than 6 inches between the concrete floor slab and the base course or the prepared subgrade where a base course does not exist, R506.3.3. 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. Clarify the ceiling/roof insulation detail showing the air-impermeable rigid insulation material adhered to either side of the roof sheathing and the batt insulation in contact with the roof material. MECHANICAL PLANS: 1. Show the HVAC system size for the building demand in accordance with M1401.3, M1601.1. Include the heating and cooling rating. 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. Show an underground feeder from a metered service panel to the more distant dwelling. 2. Show a surge-protective device (SPD) as an integral part of or placed immediately adjacent to the service equipment, E3606.5. OUTDOOR LIGHTING CODE 1. Show full cutoff fixtures were located within 25 feet from the property line OLC 401.3.3. If you have any questions, please contact: Kenneth.VanKarsen@tucsonaz.gov City of Tucson Residential Building Safety |
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| 04/06/2026 | PDSD Application Completeness Express | REVIEW COMPLETED |