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Single Family ResidentialResidential
$292,568$303 / 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 92How 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

509 CAISSON ST

FREEPORT, TX 77541
1
Baths
964 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.
2,627 ft²
Lot SizeThe size of the land the home sits on, from county records.
2022
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$293K
$270K low$315K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,911 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$294,040 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$31,240
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$262,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$353,606
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$294,040

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.70
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
37
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
94
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
51
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
71
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.68 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.100%
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.1 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 Residential
CountyBrazoria
Lot (acres)The size of the land the home sits on, from county records.0.06
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Pier/Post & Beam
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Electric
CoolingThe type of cooling or air conditioning in the home.Central
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 150 ft²Patio · 760 ft²

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.

E
Freeport Elementary School
Elementary · Grades PK–2 · 4.2 mi
M
Freeport Intermediate SchoolD
Middle · Grades 7–8 · 4.7 mi
H
Brazosport High SchoolC-
High · Grades 9–12 · 4.7 mi

District: Brazosport Independent School District

Neighborhood · ZIP 77541These 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.159
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.122
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.75%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.6.5%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.18,068
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.93 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$57,721
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$76,176
Average tempThe average temperature here across a full year.70°F
Annual precipHow much rain and melted snow falls here in a typical year.51 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

509 Caisson 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 more than 70% of homes in Freeport 77541
  • Costs more per square foot than 97% of homes in Brazoria County
  • Smaller than 93% of homes in Brazoria County
  • Among the smallest lots in Brazoria County
  • Newer than 98% of homes in Freeport 77541

What homes are worth in Freeport 77541

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

This home
$88K$781K

This home is worth more than 70% of homes in Freeport 77541.

How it measures up in Freeport 77541

The dot is this home. The mark in the middle is the typical home in Freeport 77541.

Estimated value$292,568
CheaperTypical $196,175Pricier

Pricier than 70% of homes nearby

Price per ft²$303
CheaperTypical $139Pricier

Pricier than 81% of homes nearby

Living area964 ft²
SmallerTypical 1,288 ft²Bigger

Bigger than 20% of homes nearby

Lot size2,627 ft²
SmallerTypical 0.17 acBigger

Bigger than 2% of homes nearby

Year built2022
OlderTypical 1970Newer

Newer than 98% of homes nearby

How 509 Caisson St ranks against every home in each area.
MeasureThis homeFreeport 77541Brazoria County
Estimated valuepricier than$292,56870% of homes38% of homes
Price per ft²pricier than$30381% of homes97% of homes
Living areabigger than964 ft²20% of homes7% of homes
Lot sizebigger than2,627 ft²2% of homesalmost no homes
Year builtnewer than202298% of homes95% of homes

About 509 Caisson St

How much is 509 Caisson St, Freeport, TX worth?

The TopHap Estimate for 509 Caisson St, Freeport, TX is $292,568 as of Aug 30, 2026. The likely range is $270,455 to $314,681. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Caisson St, Freeport, TX last sell?

509 Caisson St, Freeport, TX last sold on Jun 1, 2023, according to the county's recorded deed.

How big is 509 Caisson St, Freeport, TX?

509 Caisson St, Freeport, TX has 1 bathrooms, 964 square feet of living space and a 0.06-acre lot.

When was 509 Caisson St, Freeport, TX built?

509 Caisson St, Freeport, TX was built in 2022, making it 4 years old. The building has 2 stories.

What schools serve 509 Caisson St, Freeport, TX?

509 Caisson St, Freeport, TX is assigned to Freeport Elementary School (elementary); Freeport Intermediate School (middle), rated D; Brazosport High School (high), rated C-. All sit in Brazosport Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Caisson St, Freeport, TX compare to other homes in Freeport 77541?

Among the 7,570 homes in Freeport 77541, it is worth more than 70% of them ($292,568 against a typical $196,175), its price per square foot is higher than 81% of them ($303 against a typical $139), it is bigger than 20% of them (964 ft² against a typical 1,288 ft²), its lot is bigger than 2% of them (2,627 ft² against a typical 0.17 ac) and it is newer than 98% of them (2022 against a typical 1970). Measured against all of Brazoria County, it is worth more than 38% 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 509 Caisson St, Freeport, TX?

The 2024 property tax bill for 509 Caisson St, Freeport, TX was $5,911. The county assessed it at $294,040.

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