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Single Family ResidenceResidential
$192,044$132 / 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 90How 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
Last sold for $125,800 on Feb 25, 2020

3509 THORNWOOD DR

PASADENA, TX 77503
3
Beds
1
Baths
1,458 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1958
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$192K
$173K low$211K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$125,800 · Feb 25, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,150 (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.$164,969 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$61,760
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$103,209
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$171,397
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$164,969

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.20 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.''

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.Traditional/Old
CountyHARRIS
Lot (acres)The size of the land the home sits on, from county records.0.17
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Neighborhood
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 192 ft²

Transaction History(4)

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
McMasters Elementary SchoolA
Elementary · Grades PK–4 · 0.3 mi
M
San Jacinto Intermediate SchoolB
Middle · Grades 7–8 · 0.8 mi
H
Sam Rayburn High SchoolD+
High · Grades 9–12 · 1.8 mi

District: Pasadena Independent School District

Neighborhood · ZIP 77503These 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.67
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 100.24

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.9.6%
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.1.3%
PopulationHow many people live in this area.26,449
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,184 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$57,690
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$80,027
Average tempThe average temperature here across a full year.69°F
Annual precipHow much rain and melted snow falls here in a typical year.54 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

3509 Thornwood Dr 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 87% of homes in Harris County
  • Costs less per square foot than 80% of homes in Pasadena 77503
  • Smaller than 74% of homes in Harris County
  • Has a bigger lot than 65% of homes in Pasadena 77503
  • Older than 85% of homes in Harris County

What homes are worth in Pasadena 77503

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

This home
$136K$435K

This home is worth more than 30% of homes in Pasadena 77503.

How it measures up in Pasadena 77503

The dot is this home. The mark in the middle is the typical home in Pasadena 77503.

Estimated value$192,044
CheaperTypical $216,716Pricier

Pricier than 30% of homes nearby

Price per ft²$132
CheaperTypical $155Pricier

Pricier than 20% of homes nearby

Living area1,458 ft²
SmallerTypical 1,356 ft²Bigger

Bigger than 62% of homes nearby

Lot size0.17 ac
SmallerTypical 0.16 acBigger

Bigger than 65% of homes nearby

Year built1958
OlderTypical 1963Newer

Newer than 40% of homes nearby

How 3509 Thornwood Dr ranks against every home in each area.
MeasureThis homePasadena 77503Harris County
Estimated valuepricier than$192,04430% of homes13% of homes
Price per ft²pricier than$13220% of homes26% of homes
Living areabigger than1,458 ft²62% of homes26% of homes
Lot sizebigger than0.17 ac65% of homes55% of homes
Year builtnewer than195840% of homes15% of homes

About 3509 Thornwood Dr

How much is 3509 Thornwood Dr, Pasadena, TX worth?

The TopHap Estimate for 3509 Thornwood Dr, Pasadena, TX is $192,044 as of Aug 30, 2026. The likely range is $173,095 to $210,993. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3509 Thornwood Dr, Pasadena, TX last sell?

3509 Thornwood Dr, Pasadena, TX last sold on Feb 25, 2020 for $125,800, according to the county's recorded deed.

How big is 3509 Thornwood Dr, Pasadena, TX?

3509 Thornwood Dr, Pasadena, TX has 3 bedrooms, 1 bathrooms, 1,458 square feet of living space and a 0.17-acre lot.

When was 3509 Thornwood Dr, Pasadena, TX built?

3509 Thornwood Dr, Pasadena, TX was built in 1958, making it 68 years old. It is a traditional/old home. The building has 1 story.

What schools serve 3509 Thornwood Dr, Pasadena, TX?

3509 Thornwood Dr, Pasadena, TX is assigned to McMasters Elementary School (elementary), rated A; San Jacinto Intermediate School (middle), rated B; Sam Rayburn High School (high), rated D+. All sit in Pasadena Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3509 Thornwood Dr, Pasadena, TX compare to other homes in Pasadena 77503?

Among the 6,210 homes in Pasadena 77503, it is worth more than 30% of them ($192,044 against a typical $216,716), its price per square foot is higher than 20% of them ($132 against a typical $155), it is bigger than 62% of them (1,458 ft² against a typical 1,356 ft²), its lot is bigger than 65% of them (0.17 ac against a typical 0.16 ac) and it is newer than 40% of them (1958 against a typical 1963). Measured against all of Harris County, it is worth more than 13% 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 3509 Thornwood Dr, Pasadena, TX?

The 2025 property tax bill for 3509 Thornwood Dr, Pasadena, TX was $4,150. The county assessed it at $164,969.

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