The City of Phoenix website will undergo routine system maintenance on Saturday, January 31, 2026. While no major disruptions are expected, some services may be temporarily unavailable between 7:00 AM and 7:00 PM. If you experience any issues, please check back shortly. Thank you for your patience.
Technical (TRT) Documents: Policies, Processes, Interpretations
Explore TRT Documents for comprehensive policies, processes and interpretations essential for planning and development in Phoenix.
Recently Changed Policies & Procedures:
NEW and Revised TRT's are linked below and are also searchable in a search box below this section.
If you wish to have a copy of an archived TRT, please reach out to pdd.building.official@phoenix.gov
November 4, 2025
- * NEW * TRT 00613 Residential Building Permits A.R.S § 9-470.01 Guideline
- * NEW * TRT 00318 Septic System - Abandonment Process
- * NEW * TRT 00484 Self-Certifiction Program - Plan Permit Application
- * NEW * TRT 00483 Self- Certification Program - Plan Submittal Checklist
- * NEW * TRT 00123 New Custom Home vs. Remodel - Guidance
- * NEW * TRT 00482 Residential Plan Development Review - Checklist
- * NEW * TRT 00388 Type III Wood Construction - Exterior Wall Interpretation
- Revised TRT 00316 IRC Fire Separation Distance - Edits & Switch to External
- Revised TRT 00479 Billboards, Fences and Parking Lot shade Structures - Interpretation
- Revised TRT 00047 Grading & Drainage - Subdivision & Commercial Checklist
- Archived TRT 00482 Self-Certification Program - commercial / Multi-FamilyPermit Application (replaced with NEW TRT 00484 above)
- Archived TRT 00483 Self-Certification Program - Residential Single Family & Duplex Permit Application (replaced with NEW TRT 00484 above)
- Archived TRT 00492 Self-Certification Program - Building Plan Submittal Checklist (replaced with NEW TRT 00483 above)
- Archived TRT 00655 Self-Certification Program - G&D, Landscape, Parking Lot Submittal Checklist (replaced with NEW TRT 00483 above)
- Archived TRT 00656 Self-Certification Program - Civil, Landscape, Right-of-Way, and Parking Lot Permit Application (replaced with NEW TRT 00484 above)
September 23, 2025
- * NEW * TRT 00613 Residential Building Permits A.R.S § 9-470.01 Guideline
- * NEW * TRT 00607 License Time Frames A.R.S. 9-835 Policy
- * NEW * TRT 00217 Townhome Unit Structural Independence Interpretation
- * NEW * TRT 00220 Unsafe Condition Examples Interpretation
- Revised TRT 00308 Civil Infrastructure Acceptance Requirments Checklist
- Revised TRT 00044 Civil Phasing Guidline - New Residential Subdivisions
- Revised TRT 00471 Manhole Vacuum Testing Policy
- Revised TRT 00021A Permit Extension Reinstatement Application
- Revised TRT 00021P Permit Extensions and Reinstatement Process
- Revised TRT 00878 Geotechnical Reports & Special Inspections Interpretation
- Revised TRT 00705 Temporary Certificate of Occupancy (TCO) - Permit Process
- Revised TRT 00141 Extended Construction Work Hours Permit Information and Instructions
- Revised TRT 00347 Existing Conveyance Permit – Submittal Application
- Archived TRT 00644 Permit - No Activity Letter
- Archived TRT 00217 Plot Plan - Single Family Design Reviews
August 26, 2025
- * NEW * TRT 00008: Inclusive Home Design - Explained
- Revised TRT 00494: Grading and Drainage - Residential Single Lot Checklist
- Revised TRT 00811: Grading and Drainage Residential Single Lot - Prelog Administrative Review Checklist
- Revised TRT 00055: Hillside Grading Waiver - Appeal Application
- Revised TRT 00051: Hillside Grading Waiver - Process
- Archived TRT 00122: Sewer TV Inspection Request Form
- Archived TRT 00318: Stormwater - Pollution Plan Sample Letter
- Archived TRT 00008: Credit Card Authorization Form
- Archived TRT 00224: Certificate of Occupancy Fee Guideline
- Archived TRT 00233: Violation - Completion of Work Permit Expiration
- Archived TRT 00540: Property Lines Interpretation
- Archived TRT 00625: Portable Livestock Fences
- Archived TRT 00628: Window Replacement Without Permit - Interpretation
- Archived TRT 00756: Indoor Agriculture - Occupancy Classifications
- Archived TRT 00766: Plumbing Fixtures, Determination of Separate Facilities Interpretation
- Archived TRT 00769: Classrooms - Adult Education Facilities
- Archived TRT 00842: Certificate of Occupancy - Policy