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Single Family ResidenceResidential
$452,542$125 / 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 95How 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 $282,600 on Jun 26, 2017

10510 COSMOS CYN

HELOTES, TX 78023
5
Beds
3.5
Baths
3,623 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
2007
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
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

$453K
$430K low$475K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$282,600 · Jun 26, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,631 (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.$437,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$60,930
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$376,970
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$430,646
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$437,900

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.Contemporary
CountyBEXAR
Lot (acres)The size of the land the home sits on, from county records.0.18
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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.Garage, Attached
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.Patio · 236 ft²Porch · 135 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.

H
Sandra Day O'Connor High SchoolA+
High · Grades 9–12 · 1.3 mi
E
Charles L. Kuentz Jr. Elementary SchoolB
Elementary · Grades EE–5 · 1.5 mi
M
Wallace B. Jefferson Middle SchoolA-
Middle · Grades 6–8 · 1.8 mi

District: Northside Independent School District

Neighborhood · ZIP 78023These 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.56
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.22

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.5%
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.38,941
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.575 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$123,110
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$147,650
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.34 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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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

10510 Cosmos Cyn 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 more than 85% of homes in Bexar County
  • Costs less per square foot than 98% of homes in Helotes 78023
  • Bigger than 96% of homes in Bexar County
  • Newer than 75% of homes in Bexar County

What homes are worth in Helotes 78023

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

This home
$279K$1.3M

This home is worth more than 46% of homes in Helotes 78023.

How it measures up in Helotes 78023

The dot is this home. The mark in the middle is the typical home in Helotes 78023.

Estimated value$452,542
CheaperTypical $468,801Pricier

Pricier than 46% of homes nearby

Price per ft²$125
CheaperTypical $182Pricier

Pricier than 2% of homes nearby

Living area3,623 ft²
SmallerTypical 2,608 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.18 ac
SmallerTypical 0.23 acBigger

Bigger than 36% of homes nearby

Year built2007
OlderTypical 2004Newer

Newer than 71% of homes nearby

How 10510 Cosmos Cyn ranks against every home in each area.
MeasureThis homeHelotes 78023Bexar County
Estimated valuepricier than$452,54246% of homes85% of homes
Price per ft²pricier than$1252% of homes19% of homes
Living areabigger than3,623 ft²89% of homes96% of homes
Lot sizebigger than0.18 ac36% of homes57% of homes
Year builtnewer than200771% of homes75% of homes

About 10510 Cosmos Cyn

How much is 10510 Cosmos Cyn, Helotes, TX worth?

The TopHap Estimate for 10510 Cosmos Cyn, Helotes, TX is $452,542 as of Aug 30, 2026. The likely range is $429,652 to $475,432. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10510 Cosmos Cyn, Helotes, TX last sell?

10510 Cosmos Cyn, Helotes, TX last sold on Jun 26, 2017 for $282,600, according to the county's recorded deed.

How big is 10510 Cosmos Cyn, Helotes, TX?

10510 Cosmos Cyn, Helotes, TX has 5 bedrooms, 3.5 bathrooms, 3,623 square feet of living space and a 0.18-acre lot.

When was 10510 Cosmos Cyn, Helotes, TX built?

10510 Cosmos Cyn, Helotes, TX was built in 2007, making it 19 years old. It is a contemporary home. The building has 2 stories.

What schools serve 10510 Cosmos Cyn, Helotes, TX?

10510 Cosmos Cyn, Helotes, TX is assigned to Sandra Day O'Connor High School (high), rated A+; Charles L. Kuentz Jr. Elementary School (elementary), rated B; Wallace B. Jefferson Middle School (middle), rated A-. All sit in Northside Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 10510 Cosmos Cyn, Helotes, TX compare to other homes in Helotes 78023?

Among the 10,948 homes in Helotes 78023, it is worth more than 46% of them ($452,542 against a typical $468,801), its price per square foot is higher than 2% of them ($125 against a typical $182), it is bigger than 89% of them (3,623 ft² against a typical 2,608 ft²), its lot is bigger than 36% of them (0.18 ac against a typical 0.23 ac) and it is newer than 71% of them (2007 against a typical 2004). Measured against all of Bexar County, it is worth more than 85% 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 10510 Cosmos Cyn, Helotes, TX?

The 2025 property tax bill for 10510 Cosmos Cyn, Helotes, TX was $7,631. The county assessed it at $437,900.

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