Saint Rose, LA (70087) Real Estate: Prices, Flood Rules, and the Tank Farm Next Door

The tank farm next door, and what’s happening to it right now

International-Matex Tank Terminals (IMTT) operates a liquid storage complex in St. Rose that has run since the 1920s and been under IMTT ownership since the early 1980s: 216 tanks currently holding 14.8 million barrels of crude oil, fuel oil, biodiesel, and other chemicals, employing about 165 people, and ranked the parish’s 10th-largest property taxpayer in 2023.

On October 21, 2025, a few hundred people attended a public hearing at Albert Cammon Middle School, in St. Rose itself, over renewal of IMTT’s five-year state air permit. Reporting from nola.com covered the permit terms in detail: it would cut volatile organic compound emissions by 10% but authorize an 11% overall increase in toxic emissions, including the known carcinogen benzene along with methanol, cumene, and n-hexane, and would allow up to 30 new storage tanks adding 3.8 million barrels of capacity. IMTT’s near-term plan is four new ammonia tanks holding 1.8 million barrels combined, tied to a proposed $4.5 billion “blue ammonia” complex from a separate company, St. Charles Clean Fuels. As of this writing, the permit renewal has not been finally approved or denied.

This is not a historical footnote. It is an open regulatory process a buyer can track directly through the Louisiana Department of Environmental Quality’s public comment channel, not a settled fact to accept secondhand.

How close is Saint Rose to the industrial corridor people mention? The IMTT tank farm sits inside St. Rose, not several miles away, and its permit renewal covering new tanks and a possible ammonia storage expansion was still pending in late 2025.

What it actually costs to buy here

Buyers researching 70087 usually land on one rounded aggregator number. Five real closed transactions from early 2026 tell a more useful story than that single figure does.

The 225 Saint Rose Ave sale closed the day it listed; the largest, newest-built home in the sample, on Riverwood Dr, sat for 215 days. Build year and size explain part of the price-per-foot spread here, but not the days-on-market spread, which tracks more closely with condition and pricing accuracy at listing than with the house itself.

New construction is active in the area – a Louisiana-licensed residential contractor based in nearby Des Allemands carries 162 permitted projects on record – but a specific, current price point for new-build lots in St. Rose could not be independently confirmed against the builder’s own pricing. Anyone quoted a figure locally should ask for a dated, written price sheet.

Three sources, three different numbers

None of these three figures measures quite the same thing, and none of the two real-estate sites discloses an MLS source or a computation method. The Census figure sits between the other two and is the only one with a public methodology, which is why it anchors the numbers used throughout this page.

The flood question nobody answers with a number

Saint Rose sits on the east bank of the Mississippi, and flood exposure here is address-specific, not a blanket fact about the ZIP. FEMA’s designations fall into two categories that change what a specific address costs to insure: Zone X carries minimal-to-moderate risk and doesn’t require flood insurance on a federally backed mortgage; Zone AE sits in the mapped 1%-annual-chance floodplain, requires an elevation certificate for new construction, and requires flood insurance on a federally backed loan. Two houses three streets apart can carry different designations.

St. Charles Parish’s floodplain management office fields exactly this question directly at 985-783-5060. The authoritative, address-searchable source is FEMA’s Flood Map Service Center, not a real-estate site’s flood badge, which may not reflect the current effective map.

New subdivisions add a related wrinkle. When a developer sought approval in 2023 for a project called Almedia Gardens, residents raised drainage concerns at the St. Charles Parish Council meeting. The parish’s Public Works director confirmed a parish-wide drainage analysis had been performed for the broader St. Rose area, separate from any single project, and that the parish had adopted zero-impact drainage rules after a 2020 development moratorium, meaning new subdivisions can’t increase runoff onto neighboring properties.

Is Saint Rose in a flood zone? Only part of it, and which part varies address by address – call the parish floodplain office at 985-783-5060 or search FEMA’s Map Service Center for the specific parcel before making an offer.

Rent vs. buy, with real numbers

Using the Census Bureau’s 2020 to 2024 estimates for St. Rose CDP and standard lending-ratio math, 28% of gross income toward a mortgage payment and 30% toward rent, the two paths land at different income floors.

The area’s median household income covers the median ownership cost at a standard ratio with little room to spare, and covers renting with substantial room to spare. Which side wins that tradeoff for a given household depends mainly on planned holding period and the mortgage rate available at closing, not on the ZIP-wide averages above.

Is it cheaper to rent or buy in Saint Rose right now? Renting requires roughly half the annual income buying does at standard lending ratios; buying builds equity the rent side doesn’t, which mainly favors households well above the area median income or planning a long hold.

Schools, without the letter-grade shortcut

Saint Rose feeds into St. Rose Elementary, Albert Cammon Middle, and Destrehan High School, all part of St. Charles Parish Public Schools. Independent of any single ratings site’s letter grade, U.S. News & World Report ranked Destrehan High School 30th among Louisiana high schools and 3,426th nationally for 2024 to 2025, based on state assessment proficiency, graduation rate, and AP/IB participation. Louisiana’s own School Performance Score formula has changed more than once over the years, so a letter grade quoted from a prior year may not reflect this year’s score; the Louisiana Department of Education’s School Report Cards publish the current figures directly.

What schools serve Saint Rose? St. Rose Elementary, Albert Cammon Middle, and Destrehan High School, all within St. Charles Parish Public Schools; check the state’s current School Report Cards for this year’s score rather than a cached letter grade.

A short, sourced history

Palmer Elkins, a free man of color, bought roughly 160 acres in St. Rose at auction for $943.50 in April 1873 and, starting in 1880, invited freed families to settle and train for trades there; the community became known as Elkinsville, or Freetown. Two churches founded during that period, Mount Zion Baptist Church and Fifth African Baptist Church, remain active and are both over a century old. A historical marker documenting the area’s original name was dedicated in St. Rose in late 2019 after a multi-year effort by the Elkinsville Historical Restoration Association.

Common mistakes buyers make in this market

• Assuming one flood-zone status covers the whole ZIP. Zone X and Zone AE parcels sit close together here; confirm the specific address before writing an offer.
• Treating a rounded aggregator median as a firm number. The closed-sales sample above shows a real spread from $153 to $195 per square foot within the same few months.
• Skipping the drainage question on new-subdivision lots. Parish drainage rules changed after 2020; ask whether a specific new development has cleared zero-impact review, not just whether it’s marketed as flood-safe.
• Treating “near the river” as a fixed, settled risk. The IMTT permit renewal was still open as of late 2025, an active process, not a closed fact.

Who this area suits

Buyers prioritizing space and price who are comfortable living within a few miles of an active petrochemical storage and permitting process, and who plan to verify flood zone and drainage status address by address, will find real inventory here across a wide price band. Buyers who want zero flood exposure and zero industrial proximity are better served looking toward Destrehan or Kenner instead; the tradeoff doesn’t disappear with a good inspection.

Price and flood-zone data are point-in-time. Re-verify both directly, through the parish, FEMA’s Map Service Center, and a current MLS pull, before making an offer on a specific address.