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What's New

Upcoming: May 2, 2026 Uniform Election
Get ready! Important dates you don’t want to miss:

Last day to register to vote: Thursday, April 2, 2026

Last day to apply for a Ballot by Mail: Monday, April 20, 2026

View Election Information

County Logo COLLIN COUNTY
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  • Forms and Documents

Development Services: Forms and Documents

General Service

Documents (4)

  • Building Code Information
  • Permit Fees
  • Preventing Stormwater Pollution at Construction Sites Brochure
  • Third Party Inspectors-Courtesy List

On Site Sewage Facilities

Documents (9)

  • Aerobic Systems Information Sheet
  • Maintain your septic system to protect well water
  • On-Site Sewage Facilities Rules and Regulations (CO. No. 2008-187-03-11)
  • OSSF Inspection Handout
  • Preventing Stormwater Pollution at Construction Sites Brochure
  • Site Evaluator Information Sheet
  • TCEQ Construction General Permit Requirements Brochure
  • The Dirty Dozen: 12 Tips to Prevent Storm Water Pollution Brochure
  • TxDOT Driveway Permit Information Sheet

Form (2)

  • Affidavit of OSSF Requiring Maintenance
  • OSSF Information Sheet

Pool

Documents (3)

  • Affidavit for Inground Pool
  • Pool Construction Information Sheet
  • Preventing Stormwater Pollution at Construction Sites Brochure

Online Forms

On Site Sewage Facilities

Link
ETJ Platting Verification Form
Link
ETJ Platting Verification Form
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Open Records Request

Location

McKinney

Contact

Main: (972) 548-5585
Fax: (972) 548-5555

Location

4690 Community Ave., McKinney, Texas, 75071
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Hours

Mon. - Fri., 7:30 a.m. - 4 p.m.,
Friday: Closed to the public
Food Service Permits
Mon. - Fri., 7:30 a.m. - 4 p.m.,
On Site Sewage Facilities
Mon. - Fri., 7:30 a.m. - 4 p.m.,
Pool Permits
Mon. - Fri., 7:30 a.m. - 4 p.m.,
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Collin County, Texas
McKinney: (972) 548-4100
Metro: (972) 424-1460
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