US Land Life

Louisiana

Buying Land in St. Bernard Parish, Louisiana

St. Bernard Parish -- immediately downriver and downwind of New Orleans, anchored by Chalmette -- has a deep Isleño settlement history and sits at the site of the 1815 Battle of New Orleans. It's also the parish where Hurricane Katrina's flooding was most catastrophic, and where a single Army Corps shipping canal became a defining, decades-long story in how that happened.

Nearly the Entire Parish Flooded During Hurricane Katrina

Case-by-case / verify locally

St. Bernard Parish experienced catastrophic, near-total flooding during Hurricane Katrina in 2005 -- among the most severe of any parish in the storm. Rebuilding and levee/flood-protection improvements have occurred in the years since, but confirm current flood protection and FEMA flood-zone status directly for any specific parcel rather than assuming the post-Katrina rebuild fully resolved risk.

The MRGO Shipping Canal Shaped the Parish's Flood History -- and Was Closed

Case-by-case / verify locally

The Mississippi River Gulf Outlet (MRGO), a shipping canal built by the US Army Corps of Engineers in the 1960s, was widely found to have funneled Hurricane Katrina's storm surge directly into St. Bernard Parish and the adjacent Lower Ninth Ward. The canal was later deauthorized and closed off with a rock barrier structure. This is important flood-risk background, not a currently open engineering question -- but confirm the current state of any related levee or surge-barrier infrastructure directly.

The Parish Sits Within Louisiana's Statutory Coastal Zone

Case-by-case / verify locally

St. Bernard Parish falls within Louisiana's statutorily defined Coastal Zone, meaning a Coastal Use Permit -- administered by the state's Office of Coastal Management -- generally applies on top of ordinary parish review for uses directly and significantly affecting coastal waters or wetlands, particularly in the parish's lower, marsh-adjacent communities.

Zoning Is More Developed in Chalmette Than in the Lower Parish

Case-by-case / verify locally

Chalmette and the more urbanized upper parish maintain more developed zoning and permitting than the lower, more rural and marsh-adjacent communities (Violet, Poydras, Yscloskey, Delacroix, Shell Beach). Confirm directly with the parish which rules apply to a specific parcel.

Septic Runs Through the Statewide LDH Sanitary Code

Generally favorable

Where a parcel isn't served by municipal sewer, an individual sewerage system permit from the Louisiana Department of Health is required, under the same statewide framework covered on the Louisiana state hub.

A parish with deep roots, right next to New Orleans

St. Bernard Parish sits immediately downriver of New Orleans, anchored by Chalmette as its parish seat and largest community. The parish has a distinctive settlement history: Spanish Canary Islanders -- the Isleños -- settled here starting in the 1770s, and their descendants' fishing, trapping, and Spanish-language cultural heritage remains a real, documented part of the parish's identity in communities like Delacroix and St. Bernard village, preserved today partly through the Los Isleños Heritage and Cultural Society. The parish is also home to Chalmette National Historical Park, the site of the 1815 Battle of New Orleans, one of the best-known battles of the War of 1812.

Hurricane Katrina and the MRGO: the defining flood-risk story here

St. Bernard Parish experienced some of the most catastrophic, near-total flooding of any Louisiana parish during Hurricane Katrina in 2005. A central, well-documented part of that story is the Mississippi River Gulf Outlet (MRGO), a deep shipping canal the US Army Corps of Engineers built in the 1960s connecting the Gulf of Mexico to New Orleans's Industrial Canal. Extensive post-storm study and litigation found that MRGO's design funneled storm surge directly into St. Bernard Parish and the adjacent Lower Ninth Ward, amplifying the flooding beyond what would otherwise have occurred, and eroded surrounding wetlands that would have naturally buffered surge over the decades before the storm. In response, the canal was deauthorized for continued shipping use and closed off with a rock barrier structure built at its Gulf-facing end. See the dedicated flood-zones standalone below for more on this history and what it means for evaluating land in the parish today.

Coastal wetlands, fishing communities, and the parish's lower reaches

St. Bernard Parish sits within Louisiana's statutorily defined Coastal Zone, and its lower, more rural communities -- Yscloskey, Delacroix, Shell Beach, and the marsh country around them -- remain tied to commercial and recreational fishing, shrimping, and trapping in a way that reflects the parish's Isleño heritage. Land use in this part of the parish is shaped as much by marsh and open-water access as by conventional zoning, and a Coastal Use Permit from the state's Office of Coastal Management generally applies on top of ordinary parish review for uses affecting coastal waters or wetlands here. Anyone evaluating land in the lower parish should get a formal wetlands determination where boundary status isn't obviously settled, rather than relying on a visual read of the land.

Zoning and land records: more developed near Chalmette, thinner further out

Zoning and permitting are more developed in and around Chalmette and the more urbanized upper parish than in the lower, marsh-adjacent communities -- confirm directly with St. Bernard Parish Government which rules apply to a specific parcel. Land records, successions, and mortgages are recorded with the St. Bernard Parish Clerk of Court, and given how much property in the parish changed hands, was rebuilt, or passed through inheritance after Katrina, a full title examination matters more here than in most parishes -- both for ordinary succession reasons under Louisiana's forced-heirship rules, and because post-storm rebuilding activity can leave permitting or elevation-compliance history worth confirming directly with the parish.

Who to Call Before Buying Land in St. Bernard Parish

Department names reflect St. Bernard Parish's general government structure; specific websites, phone numbers, and current staff were not independently confirmed via live web access this pass -- verify directly before relying on them.

Planning & Zoning

St. Bernard Parish Government -- Department of Planning & Zoning

Parish zoning, subdivision review, and building-permit questions for a specific parcel.

Official website →

Other

Louisiana Office of Coastal Management

Coastal Use Permit requirements for a parcel located within the Coastal Zone.

Official website →

Septic / Onsite Wastewater

Louisiana Department of Health -- Office of Public Health (St. Bernard Parish Health Unit)

Individual sewerage system (septic) permits.

Official website →

Recorder / Clerk / Land Records

St. Bernard Parish Clerk of Court

Recorded deeds, mortgages, servitudes, and succession records affecting a specific parcel.

Official website →

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Topics Specific to St. Bernard Parish

Hurricane Katrina, the MRGO, and Flood Zones in St. Bernard Parish →

Sources

  1. Hurricane Katrina — National Hurricane Center / NOAA (accessed 2026-09)
  2. Mississippi River Gulf Outlet (MRGO) Ecosystem Restoration — US Army Corps of Engineers, New Orleans District (accessed 2026-09)
  3. Chalmette Battlefield and Chalmette National Cemetery — National Park Service (Jean Lafitte National Historical Park and Preserve) (accessed 2026-09)
  4. R.S. 49:214.24 -- Coastal Zone Boundary — Louisiana State Legislature (accessed 2026-09)
  5. St. Bernard Parish, Louisiana — 64 Parishes (Louisiana Endowment for the Humanities) (accessed 2026-09)
  6. National Flood Hazard Layer / Flood Map Service Center — Federal Emergency Management Agency (FEMA) (accessed 2026-09)

Last reviewed 2026-09