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Single Family ResidenceResidential
$235,573$162 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

818 PREVAL ST

MANDEVILLE, LA 70448
0
Baths
1,450 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1994
Year BuiltThe year the home was originally built, according to county records.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$236K
$225K low$246K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,196 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$17,315 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,635
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$12,680
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$17,315
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$173,145

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.84 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.area not mapped

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySaint Tammany
HeatingThe type of heating system in the home.None
FireplaceWhether the home has a fireplace, and what kind.Yes

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Woodlake Elementary SchoolA
Elementary · Grades PK–3 · 1.7 mi
M
Monteleone Junior High SchoolA-
Middle · Grades 7–8 · 2.4 mi
H
Lakeshore High SchoolA-
High · Grades 9–12 · 4.9 mi

District: St. Tammany Parish School District

Neighborhood · ZIP 70448These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.55
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.31

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.25,090
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,267 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,515
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$125,632
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.65 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

818 Preval St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 82% of homes in Mandeville 70448
  • Costs less per square foot than 72% of homes in Mandeville 70448
  • Smaller than 78% of homes in Mandeville 70448
  • Has a smaller lot than 84% of homes in Saint Tammany County

What homes are worth in Mandeville 70448

Each bar is how many homes fall in that price range. The marker is this home.

This home
$166K$917K

This home is worth more than 18% of homes in Mandeville 70448.

How it measures up in Mandeville 70448

The dot is this home. The mark in the middle is the typical home in Mandeville 70448.

Estimated value$235,573
CheaperTypical $352,704Pricier

Pricier than 18% of homes nearby

Price per ft²$162
CheaperTypical $177Pricier

Pricier than 28% of homes nearby

Living area1,450 ft²
SmallerTypical 2,000 ft²Bigger

Bigger than 22% of homes nearby

Lot size0.23 ac
SmallerTypical 0.64 acBigger

Bigger than 19% of homes nearby

Year built1994
OlderTypical 1995Newer

Newer than 49% of homes nearby

How 818 Preval St ranks against every home in each area.
MeasureThis homeMandeville 70448Saint Tammany County
Estimated valuepricier than$235,57318% of homes37% of homes
Price per ft²pricier than$16228% of homes60% of homes
Living areabigger than1,450 ft²22% of homes23% of homes
Lot sizebigger than0.23 ac19% of homes16% of homes
Year builtnewer than199449% of homes42% of homes

About 818 Preval St

How much is 818 Preval St, Mandeville, LA worth?

The TopHap Estimate for 818 Preval St, Mandeville, LA is $235,573 as of Aug 30, 2026. The likely range is $224,909 to $246,237. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 818 Preval St, Mandeville, LA last sell?

818 Preval St, Mandeville, LA last sold on Dec 30, 1994, according to the county's recorded deed.

When was 818 Preval St, Mandeville, LA built?

818 Preval St, Mandeville, LA was built in 1994, making it 32 years old.

What schools serve 818 Preval St, Mandeville, LA?

818 Preval St, Mandeville, LA is assigned to Woodlake Elementary School (elementary), rated A; Monteleone Junior High School (middle), rated A-; Lakeshore High School (high), rated A-. All sit in St. Tammany Parish School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 818 Preval St, Mandeville, LA compare to other homes in Mandeville 70448?

Among the 9,655 homes in Mandeville 70448, it is worth more than 18% of them ($235,573 against a typical $352,704), its price per square foot is higher than 28% of them ($162 against a typical $177), it is bigger than 22% of them (1,450 ft² against a typical 2,000 ft²), its lot is bigger than 19% of them (0.23 ac against a typical 0.64 ac) and it is newer than 49% of them (1994 against a typical 1995). Measured against all of Saint Tammany County, it is worth more than 37% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 818 Preval St, Mandeville, LA?

The 2025 property tax bill for 818 Preval St, Mandeville, LA was $1,196. The county assessed it at $17,315.

More homes on Preval St

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