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Single Family ResidentialResidential
$259,435$230 / 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 93How 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

FM 521

BRAZORIA, TX 77422
1
Baths
1,128 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.
2.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1960
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$259K
$241K low$278K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,662 (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.$312,680 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$84,520
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$228,160
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$346,470
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$312,680

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.24 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.56%

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
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2000
Lot (acres)The size of the land the home sits on, from county records.2.30
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.Gas
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 350 ft²

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

M
Sweeny Jr High SchoolC+
Middle · Grades 6–8 · 5.3 mi
E
Sweeny Elementary SchoolC
Elementary · Grades PK–5 · 5.4 mi
H
Sweeny High SchoolB
High · Grades 9–12 · 5.5 mi

District: Sweeny Independent School District

Neighborhood · ZIP 77422These 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.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.14

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.86%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.17,079
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.91 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,282
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$90,024
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

Fm 521 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 72% of homes in Brazoria County
  • Costs more per square foot than 92% of homes in Brazoria County
  • Smaller than 87% of homes in Brazoria County
  • Has a bigger lot than 92% of homes in Brazoria County
  • Older than 89% of homes in Brazoria County

What homes are worth in Brazoria 77422

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

This home
$97K$719K

This home is worth more than 53% of homes in Brazoria 77422.

How it measures up in Brazoria 77422

The dot is this home. The mark in the middle is the typical home in Brazoria 77422.

Estimated value$259,435
CheaperTypical $251,179Pricier

Pricier than 53% of homes nearby

Price per ft²$230
CheaperTypical $166Pricier

Pricier than 84% of homes nearby

Living area1,128 ft²
SmallerTypical 1,456 ft²Bigger

Bigger than 29% of homes nearby

Lot size2.3 ac
SmallerTypical 0.97 acBigger

Bigger than 74% of homes nearby

Year built1960
OlderTypical 1985Newer

Newer than 16% of homes nearby

How Fm 521 ranks against every home in each area.
MeasureThis homeBrazoria 77422Brazoria County
Estimated valuepricier than$259,43553% of homes28% of homes
Price per ft²pricier than$23084% of homes92% of homes
Living areabigger than1,128 ft²29% of homes13% of homes
Lot sizebigger than2.3 ac74% of homes92% of homes
Year builtnewer than196016% of homes11% of homes

About Fm 521

How much is Fm 521, Brazoria, TX worth?

The TopHap Estimate for Fm 521, Brazoria, TX is $259,435 as of Sep 24, 2026. The likely range is $240,653 to $278,217. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did Fm 521, Brazoria, TX last sell?

Fm 521, Brazoria, TX last sold on Nov 18, 2008, according to the county's recorded deed.

How big is Fm 521, Brazoria, TX?

Fm 521, Brazoria, TX has 1 bathrooms, 1,128 square feet of living space and a 2.30-acre lot.

When was Fm 521, Brazoria, TX built?

Fm 521, Brazoria, TX was built in 1960, making it 66 years old. The building has 1 story.

What schools serve Fm 521, Brazoria, TX?

Fm 521, Brazoria, TX is assigned to Sweeny Jr High School (middle), rated C+; Sweeny Elementary School (elementary), rated C; Sweeny High School (high), rated B. All sit in Sweeny Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does Fm 521, Brazoria, TX compare to other homes in Brazoria 77422?

Among the 6,001 homes in Brazoria 77422, it is worth more than 53% of them ($259,435 against a typical $251,179), its price per square foot is higher than 84% of them ($230 against a typical $166), it is bigger than 29% of them (1,128 ft² against a typical 1,456 ft²), its lot is bigger than 74% of them (2.3 ac against a typical 0.97 ac) and it is newer than 16% of them (1960 against a typical 1985). Measured against all of Brazoria County, it is worth more than 28% 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 Fm 521, Brazoria, TX?

The 2024 property tax bill for Fm 521, Brazoria, TX was $5,662. The county assessed it at $312,680.

More homes on Fm 521

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