Mandeville is the wealthiest city on the Louisiana Northshore: median household income of $94,405, 49% of adults holding a bachelor's degree or higher, and a median owner-occupied home value of $376,100 against median gross rent of $1,422. That combination produces a price-to-rent ratio near 22.8x and a gross yield around 4.5%–5.2%, which the insurance stack then cuts roughly in half. Zillow had typical value at $355,608 in March 2026, up 0.6% year over year, with observed rent at $1,541 and rising only 2.3%. Demand is real and stable; the math is not. Our verdict is hold: this is an owner-occupant market, and we would not commit investor capital at today's prices.
Mandeville is the wealthiest city on the Louisiana Northshore: median household income of $94,405, 49% of adults holding a bachelor's degree or higher, and a median owner-occupied home value of $376,100 against median gross rent of $1,422. That combination produces a price-to-rent ratio near 22.8x and a gross yield around 4.5%–5.2%, which the insurance stack then cuts roughly in half. Zillow had typical value at $355,608 in March 2026, up 0.6% year over year, with observed rent at $1,541 and rising only 2.3%. Demand is real and stable; the math is not. Our verdict is hold: this is an owner-occupant market, and we would not commit investor capital at today's prices.
St. Tammany Parish · Slidell-Mandeville-Covington, LA MSA (New Orleans metro / Northshore)
The city has about 6,138 housing units and 5,582 households, of which roughly 31.9% rent — near 1,780 renter households, and close to 1,900 doors once vacant-for-rent units are included. At Zillow's observed rent of $1,541, the annual gross rent pool inside the city is roughly $35 million. It is a genuinely small pool, and it splits into two markets that share a name: 70448, the older lakefront half running from Old Mandeville through Meadowbrook and Beau Chêne, and 70471, the newer half north of the Causeway toward I-12 and Highway 1088.
The two halves price very differently. Realtor.com put the 70448 median listing at $399,000 in August 2026 (up 7.5% year over year) with median rent $1,900, while 70471 listed at $385,000 with rent near $1,962 and a median sold price of $410,000 in April. Zillow's city-level median sale price of $330,500 in February 2026 sits well below both, which tells you the traded mix skews cheaper than the listed mix. Median asking price per square foot runs $182–$188, and days on market in both ZIPs were 40–43 in spring 2026.
Market size is therefore misleading in both directions: the unit count is small, but the price tail is long — Old Mandeville lakefront cottages ask $785,000 for 2,148 square feet while two-bedroom cottages in the same ZIP list near $154,000. Parish-wide, November 2025 closed 270 sales with 4.7 months of supply, and the parish issued 1,096 residential permits in 2025. Mandeville itself adds relatively little new stock inside its 7.1 square miles.
| Metric | Value | Basis |
|---|---|---|
| Population | 12,946 | Census / estimates, 2024 |
| Households | 5,582 | ACS |
| Housing units | 6,138 | ACS |
| Owner-occupied | 68.1% | ACS tenure split |
| Renter-occupied | 31.9% | ACS tenure split |
| Median home value | $376,100 | ACS / ZHVI |
| Median list price | $399,000 | Listing data |
| Median price / sq ft | $187 | Listing data |
| Median rent / month | $1,422 | ACS gross rent / ZORI |
| Median household income | $94,405 | ACS |
| Average days on market | 43 | Listing data |
| Vacancy rate | 7.0% | ACS / HUD |
| Management fee band | 8%-10% | Local market |
Renter share is 31.9%, slightly above Covington's 30.3%, but the composition is different: with median household income of $94,405 and 49% bachelor's attainment, many Mandeville renters are renting by choice or by life stage rather than by necessity. The pool skews to downsizers leaving lakefront and golf-course houses, medical staff at St. Tammany Health System, Lakeview Regional and Ochsner facilities, education workers in the parish system, and relocating professionals who rent for 12–24 months before buying. Median age is 43.7 and roughly 20% work from home, so commute pressure is weaker here than in most bedroom communities.
Professional management penetration is higher than in Covington but still low in absolute terms — we estimate about 38% of the rental stock, lifted by the condo and townhouse clusters in Beau Chêne and around the Causeway approach where association rules push owners toward third-party managers. Institutional single-family rental ownership is minimal, which we estimate at about 4% of the stock, mostly small local portfolios rather than national platforms. There is no build-to-rent presence of scale on the Northshore.
Beyond Realty has no Mandeville coverage. The honest read on the gap is that it is narrower than the yield gap: this is the best-served submarket on the Northshore, with the deepest brokerage bench and the highest owner sophistication. Our only real openings are bilingual service for absentee and overseas owners and insurance-led acquisition underwriting. Those are worth having, but they do not fix a 22.8x entry multiple.
Mandeville is the Northshore's brokerage center of gravity. The 2026 president of the Northshore Area Board of REALTORS, Herbert Dubuisson, is a Mandeville-based associate broker with the Chip Gardner & Herbert Dubuisson Group of Compass; NABOR counts roughly 800 members across three parishes. Latter & Blum and RE/MAX Alliance both run Mandeville offices and actively list and lease investment product, including fully leased Old Mandeville condo portfolios marketed as turnkey income. Keller Williams NOLA Northlake and KW Realty Professionals, The W Group and Vencil Group round out the field.
On the management side, the competitor set is LVM Property Management / LVM Realty, which is Mandeville-based and advertises a 9% fee with a $100 minimum and $160 maximum and no charge while vacant; Wurth Property Management, which operates a dedicated Mandeville page and claims the largest third-party book in the Gulf South; plus Soniat Realty, JW Property Services and Red Fish Property Management, all of which market Northshore management explicitly. This is a more crowded field than Covington.
Concentration is still low — no firm holds a meaningful share of the roughly 1,900 rental doors — but competitive intensity is the highest on the Northshore. Differentiation on service alone will not win here; differentiation has to come from underwriting discipline, and in a market where the underwriting conclusion is "hold," the credible move is to say so rather than to force placements.
For 2027 we expect rents to rise 2%–3%, tracking the 2.3% Zillow observed in March 2026, while prices move sideways to plus 1%. The submarket split will keep widening: 70471 new construction sets the price ceiling and absorbs most buyer demand, while 70448's older lakefront stock trades on elevation certificate and flood premium rather than on finishes. Realtor.com showed 70471 median rent down about 10% year over year in April 2026, an early sign that new rental supply north of the Causeway is already competing.
For 2028 the deciding variable remains insurance. A fourth consecutive quiet hurricane season should keep reinsurance costs falling and add carrier capacity north of I-12, which would take several hundred dollars a year off the largest operating line. Even so, a 100 basis point insurance improvement on a 4.5% gross yield does not convert a hold into a buy. What would change the answer is price, not cost: a 10%–15% nominal correction, or a 20%+ correction in real terms, is what restores a workable spread.
For 2029 the structural picture is stable rather than expansive. Population growth is nearly flat — about +0.2% a year, with the Census July 2025 estimate at 12,918 against a 2020 base of 12,828 — and the parish's own housing study projects a need for up to 17,300 new homes by 2030, most of which will be built in unincorporated St. Tammany rather than inside Mandeville's 7.1 square miles. Supply growth therefore happens around the city, not in it, which caps rent upside here.
Upside scenario: insurance relief compounds and New Orleans-side employers push more hybrid workers across the Causeway, lifting rents 3%–4% a year and pulling the price-to-rent ratio down to 20x by 2029 — still a thin buy. Downside scenario: one Gulf landfall resets wind premiums up 25%–40%, flood re-rating continues at the 18% annual cap, and owners who bought at 2025–2026 prices with negative cash flow become forced sellers, taking values down 8%–12% and creating the entry we are waiting for.
Hold. Do not enter Mandeville at 2026 pricing, and do not add to an existing position. The test is simple: a gross yield near 4.5%–5.2% with a net yield in the low 2% range does not cover the risk of owning a Lake Pontchartrain flood and wind exposure, and there is no appreciation assumption that rescues it — the city's ten-year appreciation rate is about 4.3% annualized and the most recent twelve months were roughly flat to slightly positive.
We would revisit if any two of the following become true: median asking price falls to $330,000 or below (roughly the February 2026 median sale price), the price-to-rent ratio compresses to 18x or better, wind plus flood insurance for a typical three-bedroom comes in under $4,000 a year, or gross yields reach 6.5%+. Until then, capital is better deployed in Covington, where entry prices are lower and the same insurance load is spread over a cheaper asset.
What we would buy if repriced: a three-bedroom, two-bath house or townhouse of 1,400–1,900 square feet in 70471 north of the Causeway, built after 2005 with a fortified roof, outside Zone AE and V, or an elevated 70448 cottage with a clean elevation certificate and first floor at least three feet above base flood elevation. Target gross yield 6.5%+, net 3.5%+, with no reliance on appreciation and no reliance on short-term rental income.
Do not buy: lakefront and near-lake slab houses in Zone AE or V, Old Mandeville cottages priced on charm rather than on rent, condos with HOA dues above $500 a month, anything above 20x annual gross rent, and any property whose pro forma assumes short-term rental income — the city's 20-permit cap makes that path unavailable at scale. Existing owners should hold through the insurance cycle and trim only if premiums exceed $6,000 a year.
Figures are compiled from public sources and our own management portfolio and are general information, not legal, tax or investment advice. Confirm any figure against current data before you transact.
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