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Single Family ResidenceResidential
$354,177$135 / 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 96How 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
Last sold for $279,300 on Jul 8, 2024

10618 COSMOS CYN

HELOTES, TX 78023
3
Beds
2.5
Baths
2,627 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.
2010
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$354K
$342K low$367K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$279,300 · Jul 8, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,593 (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.$375,190 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$58,510
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$316,680
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$378,810
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$375,190

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.67
37
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
56
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
99
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
45
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
100
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.7 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.minimal

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.Custom Design
CountyBEXAR
Lot (acres)The size of the land the home sits on, from county records.0.17
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
FireplaceWhether the home has a fireplace, and what kind.Yes
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.Porch · 290 ft²

Transaction History(3)

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 · 1.4 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

10618 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 less than 79% of homes in Helotes 78023
  • Costs less per square foot than 93% of homes in Helotes 78023
  • Bigger than 83% of homes in Bexar County
  • Has a smaller lot than 72% of homes in Helotes 78023
  • Newer than 77% of homes in Helotes 78023

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
$277K$1.3M

This home is worth more than 21% 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$354,177
CheaperTypical $466,738Pricier

Pricier than 21% of homes nearby

Price per ft²$135
CheaperTypical $181Pricier

Pricier than 7% of homes nearby

Living area2,627 ft²
SmallerTypical 2,605 ft²Bigger

Bigger than 51% of homes nearby

Lot size0.17 ac
SmallerTypical 0.23 acBigger

Bigger than 28% of homes nearby

Year built2010
OlderTypical 2004Newer

Newer than 77% of homes nearby

How 10618 Cosmos Cyn ranks against every home in each area.
MeasureThis homeHelotes 78023Bexar County
Estimated valuepricier than$354,17721% of homes74% of homes
Price per ft²pricier than$1357% of homes29% of homes
Living areabigger than2,627 ft²51% of homes83% of homes
Lot sizebigger than0.17 ac28% of homes48% of homes
Year builtnewer than201077% of homes76% of homes

About 10618 Cosmos Cyn

How much is 10618 Cosmos Cyn, Helotes, TX worth?

The TopHap Estimate for 10618 Cosmos Cyn, Helotes, TX is $354,177 as of Sep 24, 2026. The likely range is $341,631 to $366,723. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10618 Cosmos Cyn, Helotes, TX last sell?

10618 Cosmos Cyn, Helotes, TX last sold on Jul 8, 2024 for $279,300, according to the county's recorded deed.

How big is 10618 Cosmos Cyn, Helotes, TX?

10618 Cosmos Cyn, Helotes, TX has 3 bedrooms, 2.5 bathrooms, 2,627 square feet of living space and a 0.17-acre lot.

When was 10618 Cosmos Cyn, Helotes, TX built?

10618 Cosmos Cyn, Helotes, TX was built in 2010, making it 16 years old. It is a custom design home. The building has 2 stories.

What schools serve 10618 Cosmos Cyn, Helotes, TX?

10618 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 10618 Cosmos Cyn, Helotes, TX compare to other homes in Helotes 78023?

Among the 10,961 homes in Helotes 78023, it is worth more than 21% of them ($354,177 against a typical $466,738), its price per square foot is higher than 7% of them ($135 against a typical $181), it is bigger than 51% of them (2,627 ft² against a typical 2,605 ft²), its lot is bigger than 28% of them (0.17 ac against a typical 0.23 ac) and it is newer than 77% of them (2010 against a typical 2004). Measured against all of Bexar County, it is worth more than 74% 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 10618 Cosmos Cyn, Helotes, TX?

The 2025 property tax bill for 10618 Cosmos Cyn, Helotes, TX was $8,593. The county assessed it at $375,190.

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