Collin County · TX
Verified submittal requirements and process notes for residential rooftop solar in McKinney. This page is generated from the same database TexPTO uses to drive its in-app checklists — when we update a requirement here, the live product reflects it within minutes.
Submission method
Online portal
Average review
10 days
Total to PTO ~20 days
SolarAPP+
Not accepted
McKinney's permit portal
https://www.mckinneytexas.org/267/PermitsPlan-desk contact: permits@mckinneytexas.org
11 items
Contractor cover letter that introduces the submittal package to the plan reviewer. Editable before sending.
McKinney note: This is the installer's cover letter — not a PE-stamped engineering document. Any engineering opinion is provided separately by your licensed PE.
Licensed Professional Engineer's letter attesting to structural adequacy of the roof for the proposed PV array.
McKinney note: McKinney requires a TX-licensed PE seal on structural letters. Upload the PE-sealed PDF here. TexPTO does not generate engineering opinions.
PE-stamped structural drawings showing roof framing, attachment locations, and load path.
McKinney note: Provided by your licensed PE.
PE-stamped electrical drawings including single-line diagram, wiring layout, and disconnect locations.
McKinney note: Provided by your licensed PE.
Manufacturer datasheets for panels, inverters, and (if applicable) batteries.
McKinney note: Upload each manufacturer datasheet. The submittal package concatenates them in order.
NEC-mandated placards (rapid shutdown, PV disconnect, dual power source, etc.) sized for label printing. Requires DC voltage/current values from your design.
McKinney note: The generator will fail safely if the DC max voltage and max current aren't known — you'll be prompted to provide them. Use the 'Edit specs' button on this row to override extracted values.
One-page reference with values to paste into McKinney's permit portal. Print or keep on a second monitor while submitting.
McKinney note: Not a substitute for submission — installer still types values into the portal manually. TexPTO does not automate portal submissions.
AI-drafted letter to the homeowner's HOA requesting approval for the solar installation. Review, edit, and sign before sending.
McKinney note: Varies by subdivision in McKinney. Check deed restrictions.
AI-drafted one-page narrative summarizing the project for the permit reviewer. Attach to submittal or paste into portal text areas.
McKinney note: If the project is in McKinney's Historic Preservation Overlay (roughly ZIP 75069 core), the narrative should address visibility from the public right-of-way and note whether the HPC has reviewed. Non-historic areas can ignore this.
Short AI-drafted blurb sized to paste into the AHJ portal's Description of Work field (typically 150-250 words).
McKinney note: Tailor the blurb to McKinney's portal field length if needed — some portals cap at 250 chars, others allow a paragraph.
For properties in McKinney's Historic Preservation Overlay, a Certificate of Appropriateness from the HPC must precede the building permit.
McKinney note: Only applies to properties in the HPC overlay (roughly downtown / West McKinney). If your project isn't in the overlay, skip this requirement.
The most frequent reasons Oncor or McKinney kicks back a residential solar permit. Avoid these on your first submittal to skip a 7–14 day correction cycle.
Address Match
Resolve jurisdiction + utility from service address.
Package Build
Generate AHJ-ready permit package JSON and PDF.
Internal QA
Validate diagrams, placards, and utility requirements.
AHJ Submission
Submit package through AHJ portal workflow.
Utility Interconnection
Submit utility packet and track approval milestones.
TexPTO automates the submittal package for McKinney: NEC labels, transmittal letter, portal cheat-sheet, HOA approval letter, and the full requirement checklist above. Enter an address, generate the package, ship it.
Information accurate to TexPTO's curated database as of the most recent review. Contractors should always verify against the AHJ's current published requirements before submitting a permit.