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Single Family ResidenceResidential
$403,841$276 / 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 95How 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

400 PIEDRAS PASS

SAN MARCOS, TX 78666
0
Baths
1,464 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.
4 ac
Lot SizeThe size of the land the home sits on, from county records.
2000
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$404K
$384K low$424K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$657 (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.$241,431 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$157,360
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$159,330
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$219,483
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$316,690

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.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%
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.4.00
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Pier/Post & Beam
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.None
FireplaceWhether the home has a fireplace, and what kind.Yes
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 · 174 ft²

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
Blanco Vista Elementary SchoolB+
Elementary · Grades PK–5 · 4.2 mi
M
Laura B. Wallace Middle SchoolC+
Middle · Grades 6–8 · 5.0 mi
H
Jack C. Hays High SchoolB
High · Grades 9–12 · 6.7 mi

District: Hays 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

400 Piedras Pass 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 San Marcos 78666
  • Costs more per square foot than 91% of homes in San Marcos 78666
  • Smaller than 77% of homes in Hays County
  • Has a bigger lot than 88% of homes in San Marcos 78666
  • Older than 77% of 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
$162K$875K

This home is worth more than 72% 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$403,841
CheaperTypical $316,890Pricier

Pricier than 72% of homes nearby

Price per ft²$276
CheaperTypical $193Pricier

Pricier than 91% of homes nearby

Living area1,464 ft²
SmallerTypical 1,649 ft²Bigger

Bigger than 38% of homes nearby

Lot size4 ac
SmallerTypical 0.34 acBigger

Bigger than 88% of homes nearby

Year built2000
OlderTypical 2010Newer

Newer than 34% of homes nearby

How 400 Piedras Pass ranks against every home in each area.
MeasureThis homeSan Marcos 78666Hays County
Estimated valuepricier than$403,84172% of homes56% of homes
Price per ft²pricier than$27691% of homes80% of homes
Living areabigger than1,464 ft²38% of homes23% of homes
Lot sizebigger than4 ac88% of homes87% of homes
Year builtnewer than200034% of homes23% of homes

About 400 Piedras Pass

How much is 400 Piedras Pass, San Marcos, TX worth?

The TopHap Estimate for 400 Piedras Pass, San Marcos, TX is $403,841 as of Sep 24, 2026. The likely range is $383,680 to $424,002. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 400 Piedras Pass, San Marcos, TX last sell?

400 Piedras Pass, San Marcos, TX last sold on Apr 27, 2023, according to the county's recorded deed.

How big is 400 Piedras Pass, San Marcos, TX?

400 Piedras Pass, San Marcos, TX has 1,464 square feet of living space and a 4.00-acre lot.

When was 400 Piedras Pass, San Marcos, TX built?

400 Piedras Pass, San Marcos, TX was built in 2000, making it 26 years old. The building has 1 story.

What schools serve 400 Piedras Pass, San Marcos, TX?

400 Piedras Pass, San Marcos, TX is assigned to Blanco Vista Elementary School (elementary), rated B+; Laura B. Wallace Middle School (middle), rated C+; Jack C. Hays High School (high), rated B. All sit in Hays Consolidated Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 400 Piedras Pass, San Marcos, TX compare to other homes in San Marcos 78666?

Among the 22,673 homes in San Marcos 78666, it is worth more than 72% of them ($403,841 against a typical $316,890), its price per square foot is higher than 91% of them ($276 against a typical $193), it is bigger than 38% of them (1,464 ft² against a typical 1,649 ft²), its lot is bigger than 88% of them (4 ac against a typical 0.34 ac) and it is newer than 34% of them (2000 against a typical 2010). Measured against all of Hays County, it is worth more than 56% 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 400 Piedras Pass, San Marcos, TX?

The 2024 property tax bill for 400 Piedras Pass, San Marcos, TX was $657. The county assessed it at $241,431.

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