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Single Family ResidentialResidential
$319,682$205 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

FM 521

ROSHARON, TX 77583
3
Baths
1,560 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.
1,386.88 ac
Lot SizeThe size of the land the home sits on, from county records.
1949
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$320K
$291K low$348K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,914 (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.$243,540 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$82,720
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$160,820
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$194,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$9,175,540

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.66
62
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
49
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.
57
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.27 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.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
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.1386.88
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.Mat/Raft Foundation (Slab)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Floor/Wall Furnace
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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 · 840 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
Heartland Elementary School
Elementary · Grades PK–5 · 6.3 mi
M
Heritage Junior High School
Middle · Grades 6–8 · 6.3 mi
H
Angleton High SchoolC+
High · Grades 9–12 · 8.7 mi

District: Angleton Independent School District

Neighborhood · ZIP 77583These 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.72
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.20

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
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.47,650
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.298 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,106
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$133,090
Average tempThe average temperature here across a full year.69°F
Annual precipHow much rain and melted snow falls here in a typical year.52 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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.

  • Costs more per square foot than 92% of homes in Rosharon 77583
  • Smaller than 78% of homes in Rosharon 77583
  • Among the largest lots in Rosharon 77583
  • Among the oldest homes in Rosharon 77583

What homes are worth in Rosharon 77583

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

This home
$193K$704K

This home is worth more than 51% of homes in Rosharon 77583.

How it measures up in Rosharon 77583

The dot is this home. The mark in the middle is the typical home in Rosharon 77583.

Estimated value$319,682
CheaperTypical $317,437Pricier

Pricier than 51% of homes nearby

Price per ft²$205
CheaperTypical $152Pricier

Pricier than 92% of homes nearby

Living area1,560 ft²
SmallerTypical 2,035 ft²Bigger

Bigger than 22% of homes nearby

Lot size1,386.88 ac
SmallerTypical 0.17 acBigger

Bigger than almost all homes nearby

Year built1949
OlderTypical 2018Newer

Older than almost all homes nearby

How Fm 521 ranks against every home in each area.
MeasureThis homeRosharon 77583Brazoria County
Estimated valuepricier than$319,68251% of homes46% of homes
Price per ft²pricier than$20592% of homes86% of homes
Living areabigger than1,560 ft²22% of homes32% of homes
Lot sizebigger than1,386.88 acalmost all homesalmost all homes
Year builtnewer than1949almost no homes4% of homes

About Fm 521

How much is Fm 521, Rosharon, TX worth?

The TopHap Estimate for Fm 521, Rosharon, TX is $319,682 as of Jul 14, 2026. The likely range is $291,115 to $348,249. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is Fm 521, Rosharon, TX?

Fm 521, Rosharon, TX has 3 bathrooms, 1,560 square feet of living space and a 1386.88-acre lot.

When was Fm 521, Rosharon, TX built?

Fm 521, Rosharon, TX was built in 1949, making it 77 years old. The building has 1 story.

What schools serve Fm 521, Rosharon, TX?

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

How does Fm 521, Rosharon, TX compare to other homes in Rosharon 77583?

Among the 22,126 homes in Rosharon 77583, it is worth more than 51% of them ($319,682 against a typical $317,437), its price per square foot is higher than 92% of them ($205 against a typical $152), it is bigger than 22% of them (1,560 ft² against a typical 2,035 ft²), its lot is bigger than almost all of them (1,386.88 ac against a typical 0.17 ac) and it is newer than almost none of them (1949 against a typical 2018). Measured against all of Brazoria County, it is worth more than 46% 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, Rosharon, TX?

The 2024 property tax bill for Fm 521, Rosharon, TX was $2,914. The county assessed it at $243,540.

More homes on Fm 521

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