PLANNING & Development - Permits

ROSS LINER- Director

Koop Drive Phone: 985.898.2574
Slidell Phone: 985.646.4166

The Department of Planning & Development/Permits is committed to protecting lives and ensuring safety of the residents and visitors, preserving the Parish's quality of life, and contributing to economic development. This is accomplished through adoption, implementation and enforcement of building, electrical, mechanical and plumbing codes.

Permits How To:

  1. Go to
  2. Click on green Customer Portal button
  3. Click on green New Account button
  4. Read the notes concerning the phone number you wish you use for your account and click Next
  5. Complete the New Account Form and click Submit
  6. Click Done to return to the Customer Portal Homepage
Residential Permit Application Packet
Residential Mobile Home Application Packet (pdf)
Residential Swimming Pools Application Packet (pdf)
Homeowner/Builder Affidavit (pdf)
Residential Modular Home Affidavit (pdf)
Commercial Permit Application Packet (pdf)
Commercial Sign Plan Review Application Packet (pdf)
New Contractor Registration Form (pdf)
2020 Parish Contractor Renewal Form (pdf)
Mechanical Sub-Contractor Filings (pdf)
Plumbing Sub-Contractor Filings (pdf)
Electrical Sub-Contractor Filings (pdf)
Gas Sub-Contractor Filings (pdf)
Fee Schedule Sub-Contractor Filings (pdf)
Other Forms and Filings:
Solar Accessory Checklist (pdf)
Solar Roof Mounted Checklist (pdf)
Building Thermal Envelope Inspection (pdf)
Questions we can answer: Please call our office at 985-898-2574
How do I apply for a building permit? How much are building permit fees?
Can you tell me what inspections I have left?
How do I determine my Flood Zone? How do I obtain a LOMA (Letter of Map Amendment) to take my property out of a Flood Zone?
How do I go about getting an Electrical Connection Permit?
Why is my permit on hold for Coastal Use, Form Board Certification or Culvert Data Verification? (Contact 985-809-7448)


Contact Us

  • Administrative Complex
    21490 Koop Dr.
    Mandeville, LA 70471

    Hours of Operation:
    Monday through Friday
    8:00am to 4:30pm