Department of Planning and Development


The Department 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.


The Department of Planning & Development/ Planning is responsible for guiding the orderly growth and development of St. Tammany Parish.


The Department of Planning & Development/Engineering is responsible for the review and approval of subdivision development, commercial/residential permits and compliance with Federal and State stormwater and coastal regulations within unincorportated St. Tammany Parish.




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Contact Us

  • Administrative Complex
    21490 Koop Dr.
    Mandeville, LA 70471

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