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Single Family ResidenceResidential
$344,904$639 / 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 74How 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 $403,123 on Mar 25, 2025

734 VALLEY ST

SAN MARCOS, TX 78666
0
Baths
540 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$345K
$256K low$434K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$403,123 · Mar 25, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,087 (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.$101,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$75,660
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$25,340
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$105,610
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$101,000

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.39 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.''

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
CountyHAYS
Lot (acres)The size of the land the home sits on, from county records.0.34
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Hernandez Elementary SchoolA-
Elementary · Grades KG–5 · 1.6 mi
M
Miller Middle SchoolC+
Middle · Grades 6–8 · 2.0 mi
H
San Marcos High SchoolC-
High · Grades 9–12 · 3.7 mi

District: San Marcos Consolidated Independent School District

Neighborhood · ZIP 78666These 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.131
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.72
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
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.99,796
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.548 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$54,287
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$69,670
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.37 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

734 Valley St 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 87% of homes in Dunbar
  • Among the highest price per square foot in Dunbar
  • Among the smallest homes in San Marcos 78666
  • Has a bigger lot than 76% of homes in Dunbar
  • Among the oldest homes in Hays County

What homes are worth in San Marcos 78666

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

This home
$167K$862K

This home is worth more than 56% of homes in San Marcos 78666.

How it measures up in San Marcos 78666

The dot is this home. The mark in the middle is the typical home in San Marcos 78666.

Estimated value$344,904
CheaperTypical $326,843Pricier

Pricier than 56% of homes nearby

Price per ft²$639
CheaperTypical $196Pricier

Pricier than almost all homes nearby

Living area540 ft²
SmallerTypical 1,654 ft²Bigger

Smaller than almost all homes nearby

Lot size0.34 ac
SmallerTypical 0.34 acBigger

Bigger than 49% of homes nearby

Year built1950
OlderTypical 2010Newer

Newer than 2% of homes nearby

How 734 Valley St ranks against every home in each area.
MeasureThis homeDunbarSan Marcos 78666Hays County
Estimated valuepricier than$344,90487% of homes56% of homes45% of homes
Price per ft²pricier than$639almost all homesalmost all homes98% of homes
Living areabigger than540 ft²2% of homesalmost no homesalmost no homes
Lot sizebigger than0.34 ac76% of homes49% of homes53% of homes
Year builtnewer than19509% of homes2% of homesalmost no homes

About 734 Valley St

How much is 734 Valley St, San Marcos, TX worth?

The TopHap Estimate for 734 Valley St, San Marcos, TX is $344,904 as of Jul 14, 2026. The likely range is $255,669 to $434,139. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 734 Valley St, San Marcos, TX last sell?

734 Valley St, San Marcos, TX last sold on Mar 25, 2025 for $403,123, according to the county's recorded deed.

How big is 734 Valley St, San Marcos, TX?

734 Valley St, San Marcos, TX has 540 square feet of living space and a 0.34-acre lot.

When was 734 Valley St, San Marcos, TX built?

734 Valley St, San Marcos, TX was built in 1950, making it 76 years old. The building has 1 story.

What schools serve 734 Valley St, San Marcos, TX?

734 Valley St, San Marcos, TX is assigned to Hernandez Elementary School (elementary), rated A-; Miller Middle School (middle), rated C+; San Marcos High School (high), rated C-. All sit in San Marcos Consolidated Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 734 Valley St, San Marcos, TX compare to other homes in San Marcos 78666?

Among the 22,692 homes in San Marcos 78666, it is worth more than 56% of them ($344,904 against a typical $326,843), its price per square foot is higher than almost all of them ($639 against a typical $196), it is bigger than almost none of them (540 ft² against a typical 1,654 ft²), its lot is bigger than 49% of them (0.34 ac against a typical 0.34 ac) and it is newer than 2% of them (1950 against a typical 2010). Measured against all of Hays County, it is worth more than 45% 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 734 Valley St, San Marcos, TX?

The 2025 property tax bill for 734 Valley St, San Marcos, TX was $2,087. The county assessed it at $101,000.

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