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Single Family ResidenceResidential
$191,598$199 / 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 Oct 21, 2026

1230 SIGMA ST

PASADENA, TX 77504
3
Beds
1.5
Baths
963 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1971
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$192K
$178K low$206K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,853 (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.$169,118 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$49,287
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$119,831
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$166,324
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$169,118

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.23 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.0.11
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.Central
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
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.Porch · 273 ft²

Transaction History(2)

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
Teague Elementary SchoolC
Elementary · Grades PK–4 · 0.6 mi
H
Pasadena Memorial High SchoolB
High · Grades 9–12 · 0.9 mi
M
Elmer G. Bondy Intermediate SchoolB
Middle · Grades 7–8 · 1.6 mi

District: Pasadena Independent School District

Neighborhood · ZIP 77504These 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.94
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 100.20

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.17%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.26,067
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,762 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$53,587
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$69,078
Average tempThe average temperature here across a full year.69°F
Annual precipHow much rain and melted snow falls here in a typical year.53 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Owner Tools

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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

1230 Sigma 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 86% of homes in Pasadena 77504
  • Costs more per square foot than 91% of homes in Pasadena 77504
  • Smaller than 94% of homes in Harris County
  • Has a smaller lot than 86% of homes in Pasadena 77504
  • Older than 85% of homes in Pasadena 77504

What homes are worth in Pasadena 77504

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

This home
$83K$587K

This home is worth more than 14% of homes in Pasadena 77504.

How it measures up in Pasadena 77504

The dot is this home. The mark in the middle is the typical home in Pasadena 77504.

Estimated value$191,598
CheaperTypical $264,773Pricier

Pricier than 14% of homes nearby

Price per ft²$199
CheaperTypical $149Pricier

Pricier than 91% of homes nearby

Living area963 ft²
SmallerTypical 1,614 ft²Bigger

Bigger than 11% of homes nearby

Lot size0.11 ac
SmallerTypical 0.16 acBigger

Bigger than 14% of homes nearby

Year built1971
OlderTypical 1978Newer

Newer than 15% of homes nearby

How 1230 Sigma St ranks against every home in each area.
MeasureThis homePasadena 77504Harris County
Estimated valuepricier than$191,59814% of homes14% of homes
Price per ft²pricier than$19991% of homes82% of homes
Living areabigger than963 ft²11% of homes6% of homes
Lot sizebigger than0.11 ac14% of homes14% of homes
Year builtnewer than197115% of homes26% of homes

About 1230 Sigma St

How much is 1230 Sigma St, Pasadena, TX worth?

The TopHap Estimate for 1230 Sigma St, Pasadena, TX is $191,598 as of Oct 21, 2026. The likely range is $177,616 to $205,580. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1230 Sigma St, Pasadena, TX last sell?

1230 Sigma St, Pasadena, TX last sold on Sep 24, 2021, according to the county's recorded deed.

How big is 1230 Sigma St, Pasadena, TX?

1230 Sigma St, Pasadena, TX has 3 bedrooms, 1.5 bathrooms, 963 square feet of living space and a 0.11-acre lot.

When was 1230 Sigma St, Pasadena, TX built?

1230 Sigma St, Pasadena, TX was built in 1971, making it 55 years old. It is a traditional/old home. The building has 1 story.

What schools serve 1230 Sigma St, Pasadena, TX?

1230 Sigma St, Pasadena, TX is assigned to Teague Elementary School (elementary), rated C; Pasadena Memorial High School (high), rated B; Elmer G. Bondy Intermediate School (middle), rated B. All sit in Pasadena Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1230 Sigma St, Pasadena, TX compare to other homes in Pasadena 77504?

Among the 5,057 homes in Pasadena 77504, it is worth more than 14% of them ($191,598 against a typical $264,773), its price per square foot is higher than 91% of them ($199 against a typical $149), it is bigger than 11% of them (963 ft² against a typical 1,614 ft²), its lot is bigger than 14% of them (0.11 ac against a typical 0.16 ac) and it is newer than 15% of them (1971 against a typical 1978). Measured against all of Harris County, it is worth more than 14% 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 1230 Sigma St, Pasadena, TX?

The 2025 property tax bill for 1230 Sigma St, Pasadena, TX was $1,853. The county assessed it at $169,118.

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