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Single Family ResidenceResidential
$364,846$194 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $230,100 on Dec 15, 2015

21831 RUBY RUN

SAN ANTONIO, TX 78259
3
Beds
2
Baths
1,879 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.
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$365K
$345K low$385K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$230,100 · Dec 15, 2015
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$136,968
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$109,574
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.64%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$227,878
SUN WEST MORTGAGE COMPANY INC · recorded Oct 11, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,738 (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.$348,530 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$66,780
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$281,750
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$333,669
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$348,530

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.0.17
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
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.Deck · 208 ft²Patio · 208 ft²Porch · 160 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.

M
Tejeda Middle SchoolA
Middle · Grades 6–8 · 0.4 mi
E
Roan Forest Elementary SchoolA
Elementary · Grades PK–5 · 0.7 mi
H
Johnson High SchoolA-
High · Grades 9–12 · 1.1 mi

District: North East Independent School District

Neighborhood · ZIP 78259These 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.72
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
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.1.4%
PopulationHow many people live in this area.28,204
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,100 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$99,170
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$121,030
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

21831 Ruby Run 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 75% of homes in Bexar County
  • Costs more per square foot than 82% of homes in Bexar County
  • Smaller than 86% of homes in San Antonio 78259
  • Newer than 76% of homes in San Antonio 78259

What homes are worth in San Antonio 78259

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

This home
$281K$889K

This home is worth more than 26% of homes in San Antonio 78259.

How it measures up in San Antonio 78259

The dot is this home. The mark in the middle is the typical home in San Antonio 78259.

Estimated value$364,846
CheaperTypical $421,854Pricier

Pricier than 26% of homes nearby

Price per ft²$194
CheaperTypical $173Pricier

Pricier than 74% of homes nearby

Living area1,879 ft²
SmallerTypical 2,533 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.18 ac
SmallerTypical 0.19 acBigger

Bigger than 43% of homes nearby

Year built2007
OlderTypical 2002Newer

Newer than 76% of homes nearby

How 21831 Ruby Run ranks against every home in each area.
MeasureThis homeSan Antonio 78259Bexar County
Estimated valuepricier than$364,84626% of homes75% of homes
Price per ft²pricier than$19474% of homes82% of homes
Living areabigger than1,879 ft²14% of homes58% of homes
Lot sizebigger than0.18 ac43% of homes53% of homes
Year builtnewer than200776% of homes74% of homes

About 21831 Ruby Run

How much is 21831 Ruby Run, San Antonio, TX worth?

The TopHap Estimate for 21831 Ruby Run, San Antonio, TX is $364,846 as of Jul 14, 2026. The likely range is $344,657 to $385,035. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21831 Ruby Run, San Antonio, TX last sell?

21831 Ruby Run, San Antonio, TX last sold on Dec 15, 2015 for $230,100, according to the county's recorded deed.

How big is 21831 Ruby Run, San Antonio, TX?

21831 Ruby Run, San Antonio, TX has 3 bedrooms, 2 bathrooms, 1,879 square feet of living space and a 0.17-acre lot.

When was 21831 Ruby Run, San Antonio, TX built?

21831 Ruby Run, San Antonio, TX was built in 2007, making it 19 years old. It is a contemporary home. The building has 1 story.

What schools serve 21831 Ruby Run, San Antonio, TX?

21831 Ruby Run, San Antonio, TX is assigned to Tejeda Middle School (middle), rated A; Roan Forest Elementary School (elementary), rated A; Johnson High School (high), rated A-. All sit in North East Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21831 Ruby Run, San Antonio, TX compare to other homes in San Antonio 78259?

Among the 8,636 homes in San Antonio 78259, it is worth more than 26% of them ($364,846 against a typical $421,854), its price per square foot is higher than 74% of them ($194 against a typical $173), it is bigger than 14% of them (1,879 ft² against a typical 2,533 ft²), its lot is bigger than 43% of them (0.18 ac against a typical 0.19 ac) and it is newer than 76% of them (2007 against a typical 2002). Measured against all of Bexar County, it is worth more than 75% 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 21831 Ruby Run, San Antonio, TX?

The 2025 property tax bill for 21831 Ruby Run, San Antonio, TX was $5,738. The county assessed it at $348,530.

More homes on Ruby Run

Closest homes

More homes in San Antonio 78259

Assigned schools

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