St. Tammany Parish, Louisiana
Mandeville is a city in St. Tammany Parish, Louisiana. Mandeville adopts its own zoning, so inside its limits Mandeville’s rules apply, not the county’s. 10 rules below are quoted from official sources and independently re-checked, most recently on November 12, 2026. Rules for unincorporated land are on the St. Tammany Parish page.
Building construction inside Mandeville city
“This Article adopts and incorporates by reference into these regulations the building codes and parts thereof as mandated for enforcement by the Louisiana State Uniform Construction Code Council.”
All land inside Mandeville city limits
“No structure or land shall hereafter be used and no structure or part thereof shall be erected, reconstructed, converted, moved, or structurally altered unless in conformity with the regulations as set forth in this ordinance, except in the case of legally non-conforming building sites as provided in this article.”
Zoning districts inside Mandeville city (including R-1 and R-1X)
“The R-1 Single-Family Residential Zoning District shall be for the purpose of providing low-density residential neighborhoods”
R-1 Single-Family Residential District, Mandeville city
minimum building area: >= 1200 sq ft per unit
“2. Minimum building area (Square feet per unit) 1,200 Square feet”
R-1 Single-Family Residential District, Mandeville city
minimum lot area: >= 10800 sq ft (legal non-conforming lots)
“1. Minimum lot area 10,800 Square feet (except for legal non-conforming lots as provided)”
R-1 Single-Family Residential District, Mandeville city
front yard: >= 25 ft · street side yard: >= 15 ft · rear yard: >= 30 ft
“5. Minimum Yard Setback Requirements a. Front yard 25'”
R-1 Single-Family Residential District, Mandeville city
maximum impervious site coverage: <= 45 percent
“6. Maximum Height of Structures 35' 7. Maximum Impervious Site Coverage 45%”
R-1 Single-Family Residential District, Mandeville city
maximum height of structures: <= 35 ft
“6. Maximum Height of Structures 35' 7. Maximum Impervious Site Coverage 45%”
Camping inside Mandeville city; the ordinance bans it on public property
“This section shall not apply to vessels registered to moor on City of Mandeville facilities.”
Development in flood hazard areas inside Mandeville city
“Require that uses vulnerable to floods, including facilities which serve such uses, be protected against flood damage at the time of initial construction;”
We looked and could not find an official answer yet. Silence is not permission; ask Mandeville or St. Tammany Parish directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Mandeville publishes no rule on the point, not that none exists. St. Tammany Parish’s page lists the county offices to call.
Off-grid gear
Going off-grid in Mandeville means bringing your own water and power. The kit we’d start with:
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