In Old Metairie, the Median Price Only Tells Half the Story. The Sewer Line Tells the Rest.

The median sale price in Old Metairie sat at $420,000 over the three months ending in June 2026, down 4.6% from the same stretch a year earlier. That sounds like a market cooling gently, the kind of dip a good listing agent absorbs with a little patience and a fresh set of photos.

Then look at price per square foot. Over that same twelve months, it fell 12.7%, nearly three times the drop in the headline number. In a separate snapshot from May 2026, Old Metairie homes were selling for 94.1% of asking price, against a Louisiana average closer to 97.2%. Something is pulling per-foot value down harder than the median admits, and it isn't happening at the negotiating table before the contract gets signed. It's happening after, in the two weeks between accepted offer and closing, over items a standard home inspection never touches.

What a Home Inspection in Old Metairie Actually Covers

A general home inspection looks at the roof, the foundation, the electrical panel, the HVAC, the plumbing fixtures you can see. It does not run a camera down your sewer lateral. It does not test for termites, powderpost beetles, or old house borers. Those two items get handled by separate people, on separate timelines, governed by separate rules, and in a neighborhood built up through the mid-twentieth century, they're where the real cost surprises live.

That separation is the mechanism behind the gap in the price data. A buyer and seller agree on a number based on what the general inspector found. Then the sewer scope and the wood destroying insect report come back, and the real negotiation starts, off the record, away from any dataset that tracks list-to-sale ratios by the day.

The Cast Iron Problem Under Maple Ridge and Bonnabel

Local plumbers who work Jefferson Parish routinely describe scaled and cracked cast iron as the default finding in Old Metairie and neighboring Bonnabel. It's a function of age and geology as much as anything a homeowner did wrong. Cast iron laterals installed decades ago scale on the inside until routine solids stop clearing. Mature oak roots find the joints between iron sections and rebuild a blockage every few months, no matter how many times you have it cleaned. Shifting soil lets sections settle, creating bellies where waste pools instead of flowing.

None of that shows up on a walkthrough. It shows up on a camera, which runs $250 to $450 and is genuinely the only way to tell a spot break from a failed lateral, or root intrusion from a structural belly. Once you know what you're looking at, the range widens fast. A spot repair on an otherwise sound line runs $1,200 to $3,000. Trenchless lining, which spares the driveway and the landscaping, runs $80 to $200 per foot. A full open-cut lateral replacement lands between $4,000 and $12,000 depending on depth, length, and what has to come out to reach it.

That's a five-figure swing sitting entirely outside the scope of a standard inspection contract, in a neighborhood where it's the expected finding rather than the exception.

The Termite Report Nobody Bundles With the Inspection

Louisiana treats wood destroying insect inspections as their own regulated category, separate from general home inspection, and the rule is written into state regulation: a wood destroying insect report can only be issued for a property sale or refinance, by a person licensed or registered specifically for that inspection, not by whoever checked your roof and water heater.

Here's the part that catches people at the closing table. The state's own form allows a report to stand for up to 90 days before a new infestation would violate its guarantee. But the standard Louisiana purchase agreement addendum most Old Metairie contracts use requires the seller to furnish a wood destroying insect report dated no more than 30 days prior to the act of sale. A report that's perfectly valid under state regulation can still be too old to satisfy your own contract. Order it too early relative to your closing date, and you're paying for a second one.

The median price gets agreed to before anyone knows what's under the slab. The real negotiation happens after, over two documents the inspection never covers.

Why Louisiana Disclosure Works Differently Than Buyers Expect

Louisiana's approach to property disclosure comes out of a civil law tradition, not the common law framework used in most of the country. The state requires sellers to complete a Property Disclosure Document under Louisiana Revised Statutes 9:3198, and that document explicitly covers known termite or wood destroying insect activity, past treatments, and damage. Sellers are held to a "knew or should have known" standard. They don't have to hire inspectors themselves, but they can't hide behind not looking.

If a buyer closes and later finds a defect the seller should have disclosed, Louisiana gives them a redhibition action, a remedy with roots in the state's Napoleonic Code heritage, available for up to one year after the sale to seek rescission or a price reduction. If the seller intentionally concealed something, a separate fraud claim can extend that window. Real estate agents in Louisiana carry an independent duty to disclose known material defects too, which means the protection doesn't rest on the seller alone. None of this is free to pursue. Attorney fees for a real estate dispute here typically start at $5,000 to $10,000 and climb from there, which is exactly why getting the sewer scope and the WDI report right before closing, rather than litigating after, is the cheaper path for everyone.

What the Two Numbers Actually Mean Right Now

Put it together and the median-versus-per-foot gap stops looking like noise. In a market where 135 homes sold in June 2026, up from 119 the year before, more transactions are clearing, but a larger share of them are settling below the number the seller expected, specifically because sewer and termite findings are surfacing after contract and getting negotiated off the visible price. As of early September 2026, active listings in Old Metairie carried a median asking price near $440,000 while recent closings landed closer to $420,000. That spread is condition risk, not just buyer hesitation.

For sellers, that argues for ordering your own camera inspection and wood destroying insect report before you list, not after an offer comes in. Fixing a $1,500 spot repair on your terms beats negotiating a $9,000 credit on someone else's. For buyers, it means budgeting past the inspection fee for a sewer scope and a properly timed WDI report, and understanding that a clean general inspection in a Maple Ridge or Bonnabel listing tells you less than it would in a newer subdivision.

A Few Direct Questions

Does every home in Old Metairie have a cast iron sewer problem? No. Age and original installation vary by block and by builder. But cast iron laterals from the neighborhood's main building era are common enough that a camera scope before listing or before closing is a reasonable default, not an overreaction.

If my WDI report is 60 days old, can I still close? Check your purchase agreement's specific language before assuming. Many Louisiana contracts require a report dated within 30 days of the act of sale even though the state regulation allows a 90-day window for the infestation guarantee itself.

What if the seller genuinely didn't know about termite damage inside a wall? Louisiana's standard is "knew or should have known," which protects sellers who had no reasonable way to see the damage. It does not protect a seller who avoided looking.

If you're weighing a purchase or a listing in Old Metairie and want someone who reads a sewer scope and a WDI report the way a construction background reads them, not just the way a transaction checklist does, that's the kind of groundwork Burk Brokerage Real Estate builds into every deal. Start with a free home valuation and we'll walk the numbers, and the pipes, before you list.