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Single Family ResidenceResidential
$696,553$189 / 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 Jun 23, 2026

423 COMAL RUN

BULVERDE, TX 78163
2
Baths
3,690 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.
1.42 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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$697K
$669K low$724K high
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.$410,253
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$328,202
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.41%
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.$206,300
RANDOLPH BROOKS FCU · recorded Jan 30, 2020
2nd 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.$80,000
RANDOLPH BROOKS FCU

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,837 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$649,403 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$94,570
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$628,890
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$590,366
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$723,460

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.71
53
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
71
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
98
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
46
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
87
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.16 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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
CountyComal
Lot (acres)The size of the land the home sits on, from county records.1.42
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
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 · 380 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
Bill Brown Elementary SchoolA+
Elementary · Grades PK–5 · 1.6 mi
H
Smithson Valley High SchoolA-
High · Grades 9–12 · 2.8 mi
M
Smithson Valley Middle SchoolA
Middle · Grades 6–8 · 4.0 mi

District: Comal Independent School District

Neighborhood · ZIP 78163These 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.42
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.26

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.18,970
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.220 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$125,403
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$147,015
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.36 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

423 Comal 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 74% of homes in Bulverde 78163
  • Costs less per square foot than 76% of homes in Comal County
  • Bigger than 93% of homes in Bulverde 78163
  • Has a bigger lot than 79% of homes in Comal County

What homes are worth in Bulverde 78163

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

This home
$282K$1.5M

This home is worth more than 74% of homes in Bulverde 78163.

How it measures up in Bulverde 78163

The dot is this home. The mark in the middle is the typical home in Bulverde 78163.

Estimated value$696,553
CheaperTypical $501,284Pricier

Pricier than 74% of homes nearby

Price per ft²$189
CheaperTypical $219Pricier

Pricier than 26% of homes nearby

Living area3,690 ft²
SmallerTypical 2,350 ft²Bigger

Bigger than 93% of homes nearby

Lot size1.42 ac
SmallerTypical 0.39 acBigger

Bigger than 70% of homes nearby

Year built2010
OlderTypical 2018Newer

Newer than 39% of homes nearby

How 423 Comal Run ranks against every home in each area.
MeasureThis homeBulverde 78163Comal County
Estimated valuepricier than$696,55374% of homes72% of homes
Price per ft²pricier than$18926% of homes24% of homes
Living areabigger than3,690 ft²93% of homes93% of homes
Lot sizebigger than1.42 ac70% of homes79% of homes
Year builtnewer than201039% of homes55% of homes

About 423 Comal Run

How much is 423 Comal Run, Bulverde, TX worth?

The TopHap Estimate for 423 Comal Run, Bulverde, TX is $696,553 as of Jun 23, 2026. The likely range is $668,690 to $724,415. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 423 Comal Run, Bulverde, TX last sell?

423 Comal Run, Bulverde, TX last sold on Apr 14, 2010, according to the county's recorded deed.

How big is 423 Comal Run, Bulverde, TX?

423 Comal Run, Bulverde, TX has 2 bathrooms, 3,690 square feet of living space and a 1.42-acre lot.

When was 423 Comal Run, Bulverde, TX built?

423 Comal Run, Bulverde, TX was built in 2010, making it 16 years old. The building has 2 stories.

What schools serve 423 Comal Run, Bulverde, TX?

423 Comal Run, Bulverde, TX is assigned to Bill Brown Elementary School (elementary), rated A+; Smithson Valley High School (high), rated A-; Smithson Valley Middle School (middle), rated A. All sit in Comal Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 423 Comal Run, Bulverde, TX compare to other homes in Bulverde 78163?

Among the 9,618 homes in Bulverde 78163, it is worth more than 74% of them ($696,553 against a typical $501,284), its price per square foot is higher than 26% of them ($189 against a typical $219), it is bigger than 93% of them (3,690 ft² against a typical 2,350 ft²), its lot is bigger than 70% of them (1.42 ac against a typical 0.39 ac) and it is newer than 39% of them (2010 against a typical 2018). Measured against all of Comal County, it is worth more than 72% 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 423 Comal Run, Bulverde, TX?

The 2024 property tax bill for 423 Comal Run, Bulverde, TX was $5,837. The county assessed it at $649,403.

Closest homes

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Assigned schools

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