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Single Family ResidenceResidential
$241,532$142 / 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 Oct 21, 2026

423 COLONIAL CT

MANDEVILLE, LA 70471
0
Baths
1,699 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.
1994
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

$242K
$212K low$271K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,451 (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.$19,593 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,090
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$16,503
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$19,593
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$195,928

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.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.48%
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

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

M
Fontainebleau Junior High SchoolA
Middle · Grades 7–8 · 2.4 mi
H
Fontainebleau High SchoolB+
High · Grades 9–12 · 2.4 mi
E
Marigny Elementary School
Elementary · Grades PK–1 · 2.9 mi

District: St. Tammany Parish School District

Neighborhood · ZIP 70471These 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.73
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 100.33

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.22,153
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.758 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$92,032
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,651
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

423 Colonial Ct 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 83% of homes in Mandeville 70471
  • Costs less per square foot than 86% of homes in Mandeville 70471
  • Smaller than 76% of homes in Mandeville 70471

What homes are worth in Mandeville 70471

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

This home
$132K$1.4M

This home is worth more than 17% of homes in Mandeville 70471.

How it measures up in Mandeville 70471

The dot is this home. The mark in the middle is the typical home in Mandeville 70471.

Estimated value$241,532
CheaperTypical $399,780Pricier

Pricier than 17% of homes nearby

Price per ft²$142
CheaperTypical $172Pricier

Pricier than 14% of homes nearby

Living area1,699 ft²
SmallerTypical 2,366 ft²Bigger

Bigger than 24% of homes nearby

Year built1994
OlderTypical 1993Newer

Newer than 56% of homes nearby

How 423 Colonial Ct ranks against every home in each area.
MeasureThis homeMandeville 70471Saint Tammany County
Estimated valuepricier than$241,53217% of homes39% of homes
Price per ft²pricier than$14214% of homes43% of homes
Living areabigger than1,699 ft²24% of homes37% of homes
Year builtnewer than199456% of homes41% of homes

About 423 Colonial Ct

How much is 423 Colonial Ct, Mandeville, LA worth?

The TopHap Estimate for 423 Colonial Ct, Mandeville, LA is $241,532 as of Oct 21, 2026. The likely range is $211,750 to $271,314. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When was 423 Colonial Ct, Mandeville, LA built?

423 Colonial Ct, Mandeville, LA was built in 1994, making it 32 years old.

What schools serve 423 Colonial Ct, Mandeville, LA?

423 Colonial Ct, Mandeville, LA is assigned to Fontainebleau Junior High School (middle), rated A; Fontainebleau High School (high), rated B+; Marigny Elementary School (elementary). All sit in St. Tammany Parish School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 423 Colonial Ct, Mandeville, LA compare to other homes in Mandeville 70471?

Among the 7,972 homes in Mandeville 70471, it is worth more than 17% of them ($241,532 against a typical $399,780), its price per square foot is higher than 14% of them ($142 against a typical $172), it is bigger than 24% of them (1,699 ft² against a typical 2,366 ft²) and it is newer than 56% of them (1994 against a typical 1993). Measured against all of Saint Tammany County, it is worth more than 39% 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 423 Colonial Ct, Mandeville, LA?

The 2025 property tax bill for 423 Colonial Ct, Mandeville, LA was $1,451. The county assessed it at $19,593.

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