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Single Family ResidenceResidential
$334,296$150 / 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 82How 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 $173,600 on Dec 17, 2013

17550 S STATE HIGHWAY 123

SEGUIN, TX 78155
2
Baths
2,234 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.
2 ac
Lot SizeThe size of the land the home sits on, from county records.
1980
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$334K
$275K low$394K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$173,600 · Dec 17, 2013
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.$170,396
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$136,317
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.46%
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.$163,900
SWBC MORTGAGE CORP · recorded Feb 25, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,424 (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.$298,029 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$128,010
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$170,019
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$350,840
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$298,029

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.40 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
CountyGUADALUPE
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.Patio · 360 ft²Porch · 480 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.

E
Vogel Elementary SchoolC+
Elementary · Grades KG–5 · 5.9 mi
M
A.J. Briesemeister Middle SchoolC-
Middle · Grades 6–8 · 8.1 mi
H
Seguin High SchoolD+
High · Grades 9–12 · 8.1 mi

District: Seguin Independent School District

Neighborhood · ZIP 78155These 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.127
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 100.27

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.58,962
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.164 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$70,238
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$91,092
Average tempThe average temperature here across a full year.69°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

17550 S State Highway 123 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 72% of homes in Seguin 78155
  • Bigger than 79% of homes in Seguin 78155
  • Has a bigger lot than 94% of homes in Guadalupe County
  • Older than 85% of homes in Guadalupe County

What homes are worth in Seguin 78155

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

This home
$94K$713K

This home is worth more than 72% of homes in Seguin 78155.

How it measures up in Seguin 78155

The dot is this home. The mark in the middle is the typical home in Seguin 78155.

Estimated value$334,296
CheaperTypical $269,592Pricier

Pricier than 72% of homes nearby

Price per ft²$150
CheaperTypical $158Pricier

Pricier than 40% of homes nearby

Living area2,234 ft²
SmallerTypical 1,627 ft²Bigger

Bigger than 79% of homes nearby

Lot size2 ac
SmallerTypical 0.23 acBigger

Bigger than 90% of homes nearby

Year built1980
OlderTypical 2000Newer

Newer than 26% of homes nearby

How 17550 S State Highway 123 ranks against every home in each area.
MeasureThis homeSeguin 78155Guadalupe County
Estimated valuepricier than$334,29672% of homes61% of homes
Price per ft²pricier than$15040% of homes40% of homes
Living areabigger than2,234 ft²79% of homes67% of homes
Lot sizebigger than2 ac90% of homes94% of homes
Year builtnewer than198026% of homes15% of homes

About 17550 S State Highway 123

How much is 17550 S State Highway 123, Seguin, TX worth?

The TopHap Estimate for 17550 S State Highway 123, Seguin, TX is $334,296 as of Jul 14, 2026. The likely range is $274,569 to $394,023. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17550 S State Highway 123, Seguin, TX last sell?

17550 S State Highway 123, Seguin, TX last sold on Dec 17, 2013 for $173,600, according to the county's recorded deed.

How big is 17550 S State Highway 123, Seguin, TX?

17550 S State Highway 123, Seguin, TX has 2 bathrooms and 2,234 square feet of living space.

When was 17550 S State Highway 123, Seguin, TX built?

17550 S State Highway 123, Seguin, TX was built in 1980, making it 46 years old. The building has 1 story.

What schools serve 17550 S State Highway 123, Seguin, TX?

17550 S State Highway 123, Seguin, TX is assigned to Vogel Elementary School (elementary), rated C+; A.J. Briesemeister Middle School (middle), rated C-; Seguin High School (high), rated D+. All sit in Seguin Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17550 S State Highway 123, Seguin, TX compare to other homes in Seguin 78155?

Among the 26,236 homes in Seguin 78155, it is worth more than 72% of them ($334,296 against a typical $269,592), its price per square foot is higher than 40% of them ($150 against a typical $158), it is bigger than 79% of them (2,234 ft² against a typical 1,627 ft²), its lot is bigger than 90% of them (2 ac against a typical 0.23 ac) and it is newer than 26% of them (1980 against a typical 2000). Measured against all of Guadalupe County, it is worth more than 61% 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 17550 S State Highway 123, Seguin, TX?

The 2025 property tax bill for 17550 S State Highway 123, Seguin, TX was $3,424. The county assessed it at $298,029.

More homes on S State Highway 123

Closest homes

More homes in Seguin 78155

Assigned schools

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