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Single Family ResidenceResidential
$134,734$236 / 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 85How 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

3117 SEALY ST

GALVESTON, TX 77550
1
Baths
572 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.
2,262 ft²
Lot SizeThe size of the land the home sits on, from county records.
1959
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$135K
$114K low$155K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,717 (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.$119,770 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$55,060
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$64,710
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$172,360
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$119,770

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.30
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
50
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.96 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.96%
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 Residence
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyGALVESTON
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.1995
Lot (acres)The size of the land the home sits on, from county records.0.05
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
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 · 55 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
Morgan Elementary Health, Medical Science and Engineering Magnet
Elementary · Grades PK–4 · 0.5 mi
H
Ball High SchoolC
High · Grades 9–12 · 0.9 mi
M
Austin Middle School
Middle · Grades 5–8 · 1.2 mi

District: Galveston Independent School District

Neighborhood · ZIP 77550These 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.173
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 100.19

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.77%
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.22%
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.25,895
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,311 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$49,145
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$73,945
Average tempThe average temperature here across a full year.70°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.62%

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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

3117 Sealy 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 98% of homes in Galveston 77550
  • Costs more per square foot than 76% of homes in Galveston County
  • Among the smallest homes in Galveston County
  • Has a smaller lot than 94% of homes in Galveston County
  • Older than 94% of homes in Galveston County

What homes are worth in Galveston 77550

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

This home
$128K$1.5M

This home is worth more than 2% of homes in Galveston 77550.

How it measures up in Galveston 77550

The dot is this home. The mark in the middle is the typical home in Galveston 77550.

Estimated value$134,734
CheaperTypical $353,433Pricier

Pricier than 2% of homes nearby

Price per ft²$236
CheaperTypical $249Pricier

Pricier than 42% of homes nearby

Living area572 ft²
SmallerTypical 1,464 ft²Bigger

Bigger than 2% of homes nearby

Lot size2,262 ft²
SmallerTypical 4,051 ft²Bigger

Bigger than 24% of homes nearby

Year built1959
OlderTypical 1960Newer

Newer than 34% of homes nearby

How 3117 Sealy St ranks against every home in each area.
MeasureThis homeGalveston 77550Galveston County
Estimated valuepricier than$134,7342% of homes3% of homes
Price per ft²pricier than$23642% of homes76% of homes
Living areabigger than572 ft²2% of homesalmost no homes
Lot sizebigger than2,262 ft²24% of homes6% of homes
Year builtnewer than195934% of homes6% of homes

About 3117 Sealy St

How much is 3117 Sealy St, Galveston, TX worth?

The TopHap Estimate for 3117 Sealy St, Galveston, TX is $134,734 as of Sep 24, 2026. The likely range is $114,494 to $154,974. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3117 Sealy St, Galveston, TX last sell?

3117 Sealy St, Galveston, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3117 Sealy St, Galveston, TX?

3117 Sealy St, Galveston, TX has 1 bathrooms, 572 square feet of living space and a 0.05-acre lot.

When was 3117 Sealy St, Galveston, TX built?

3117 Sealy St, Galveston, TX was built in 1959, making it 67 years old. It is a conventional home. The building has 1 story.

What schools serve 3117 Sealy St, Galveston, TX?

3117 Sealy St, Galveston, TX is assigned to Morgan Elementary Health, Medical Science and Engineering Magnet (elementary); Ball High School (high), rated C; Austin Middle School (middle). All sit in Galveston Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3117 Sealy St, Galveston, TX compare to other homes in Galveston 77550?

Among the 9,334 homes in Galveston 77550, it is worth more than 2% of them ($134,734 against a typical $353,433), its price per square foot is higher than 42% of them ($236 against a typical $249), it is bigger than 2% of them (572 ft² against a typical 1,464 ft²), its lot is bigger than 24% of them (2,262 ft² against a typical 4,051 ft²) and it is newer than 34% of them (1959 against a typical 1960). Measured against all of Galveston County, it is worth more than 3% 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 3117 Sealy St, Galveston, TX?

The 2025 property tax bill for 3117 Sealy St, Galveston, TX was $2,717. The county assessed it at $119,770.

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