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Single Family ResidenceResidential
$843,017$401 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

770 COTTONSEED RUN

MARTINDALE, TX 78655
3
Beds
2
Baths
2,100 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.
1.69 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$843K
$769K low$918K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,092 (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.$644,856 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$249,927
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$394,929
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$750,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$644,856

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.197 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.1 percent flood zone

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
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
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, Detached
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 · 30 ft²Patio · 1,008 ft²Porch · 25 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
DeZavala Elementary SchoolD+
Elementary · Grades KG–5 · 4.2 mi
M
Goodnight Middle SchoolC-
Middle · Grades 6–8 · 4.3 mi
H
San Marcos High SchoolC-
High · Grades 9–12 · 5.6 mi

District: San Marcos Consolidated Independent School District

Neighborhood · ZIP 78655These 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.152
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.18

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.24%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.4,721
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.114 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$51,449
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$79,316
Average tempThe average temperature here across a full year.68°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%

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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

770 Cottonseed 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.

  • Among the most valuable homes in Guadalupe County
  • Among the highest price per square foot in Guadalupe County
  • Bigger than 77% of homes in Martindale 78655
  • Has a bigger lot than 93% of homes in Guadalupe County
  • Newer than 71% of homes in Martindale 78655

What homes are worth in Martindale 78655

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

This home
$149K$1.1M

This home is worth more than 91% of homes in Martindale 78655.

How it measures up in Martindale 78655

The dot is this home. The mark in the middle is the typical home in Martindale 78655.

Estimated value$843,017
CheaperTypical $378,763Pricier

Pricier than 91% of homes nearby

Price per ft²$401
CheaperTypical $245Pricier

Pricier than 91% of homes nearby

Living area2,100 ft²
SmallerTypical 1,540 ft²Bigger

Bigger than 77% of homes nearby

Lot size1.69 ac
SmallerTypical 0.8 acBigger

Bigger than 78% of homes nearby

Year built2002
OlderTypical 1995Newer

Newer than 71% of homes nearby

How 770 Cottonseed Run ranks against every home in each area.
MeasureThis homeMartindale 78655Guadalupe County
Estimated valuepricier than$843,01791% of homesalmost all homes
Price per ft²pricier than$40191% of homesalmost all homes
Living areabigger than2,100 ft²77% of homes61% of homes
Lot sizebigger than1.69 ac78% of homes93% of homes
Year builtnewer than200271% of homes40% of homes

About 770 Cottonseed Run

How much is 770 Cottonseed Run, Martindale, TX worth?

The TopHap Estimate for 770 Cottonseed Run, Martindale, TX is $843,017 as of Aug 30, 2026. The likely range is $768,517 to $917,517. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 770 Cottonseed Run, Martindale, TX last sell?

770 Cottonseed Run, Martindale, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 770 Cottonseed Run, Martindale, TX?

770 Cottonseed Run, Martindale, TX has 3 bedrooms, 2 bathrooms and 2,100 square feet of living space.

When was 770 Cottonseed Run, Martindale, TX built?

770 Cottonseed Run, Martindale, TX was built in 2002, making it 24 years old. The building has 1 story.

What schools serve 770 Cottonseed Run, Martindale, TX?

770 Cottonseed Run, Martindale, TX is assigned to DeZavala Elementary School (elementary), rated D+; Goodnight 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 770 Cottonseed Run, Martindale, TX compare to other homes in Martindale 78655?

Among the 1,224 homes in Martindale 78655, it is worth more than 91% of them ($843,017 against a typical $378,763), its price per square foot is higher than 91% of them ($401 against a typical $245), it is bigger than 77% of them (2,100 ft² against a typical 1,540 ft²), its lot is bigger than 78% of them (1.69 ac against a typical 0.8 ac) and it is newer than 71% of them (2002 against a typical 1995). Measured against all of Guadalupe County, it is worth more than almost all 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 770 Cottonseed Run, Martindale, TX?

The 2025 property tax bill for 770 Cottonseed Run, Martindale, TX was $10,092. The county assessed it at $644,856.

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