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Single Family ResidenceResidential
$294,587$116 / 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 88How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

3521 MONROE ST

MANDEVILLE, LA 70448
0
Baths
2,546 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.
1977
Year BuiltThe year the home was originally built, according to county records.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$295K
$258K low$331K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$312 (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.$9,480 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,270
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$7,210
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$9,480
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$94,800

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.132 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.0.2 percent flood zone

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
Mandeville Elementary SchoolA+
Elementary · Grades PK–3 · 0.5 mi
M
Mandeville Junior High SchoolA+
Middle · Grades 7–8 · 0.8 mi
H
Mandeville High SchoolA
High · Grades 9–12 · 1.1 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

3521 Monroe 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 65% of homes in Mandeville 70448
  • Costs less per square foot than 98% of homes in Mandeville 70448
  • Bigger than 77% of homes in Mandeville 70448
  • Older than 89% of homes in Mandeville 70448

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
$159K$878K

This home is worth more than 35% 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$294,587
CheaperTypical $349,868Pricier

Pricier than 35% of homes nearby

Price per ft²$116
CheaperTypical $176Pricier

Pricier than 2% of homes nearby

Living area2,546 ft²
SmallerTypical 2,010 ft²Bigger

Bigger than 77% of homes nearby

Year built1977
OlderTypical 1995Newer

Newer than 11% of homes nearby

How 3521 Monroe St ranks against every home in each area.
MeasureThis homeMandeville 70448Saint Tammany County
Estimated valuepricier than$294,58735% of homes55% of homes
Price per ft²pricier than$1162% of homes18% of homes
Living areabigger than2,546 ft²77% of homes77% of homes
Year builtnewer than197711% of homes14% of homes

About 3521 Monroe St

How much is 3521 Monroe St, Mandeville, LA worth?

The TopHap Estimate for 3521 Monroe St, Mandeville, LA is $294,587 as of Sep 24, 2026. The likely range is $258,166 to $331,008. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3521 Monroe St, Mandeville, LA last sell?

3521 Monroe St, Mandeville, LA last sold on Feb 3, 2016, according to the county's recorded deed.

When was 3521 Monroe St, Mandeville, LA built?

3521 Monroe St, Mandeville, LA was built in 1977, making it 49 years old.

What schools serve 3521 Monroe St, Mandeville, LA?

3521 Monroe St, Mandeville, LA is assigned to Mandeville Elementary School (elementary), rated A+; Mandeville Junior High School (middle), rated A+; Mandeville 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 3521 Monroe St, Mandeville, LA compare to other homes in Mandeville 70448?

Among the 9,655 homes in Mandeville 70448, it is worth more than 35% of them ($294,587 against a typical $349,868), its price per square foot is higher than 2% of them ($116 against a typical $176), it is bigger than 77% of them (2,546 ft² against a typical 2,010 ft²) and it is newer than 11% of them (1977 against a typical 1995). Measured against all of Saint Tammany County, it is worth more than 55% 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 3521 Monroe St, Mandeville, LA?

The 2025 property tax bill for 3521 Monroe St, Mandeville, LA was $312. The county assessed it at $9,480.

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