Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$100,147$90 / 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 92How 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

18 MARTINEZ ST

COLDSPRING, TX 77331
1
Baths
1,108 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.
0.48 ac
Lot SizeThe size of the land the home sits on, from county records.
1999
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$100K
$92K low$108K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,530 (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.$118,460 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$105,860
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$125,980
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$118,460

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.54
34
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
49
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
94
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
66
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
28
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.6 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
CountySAN JACINTO
Lot (acres)The size of the land the home sits on, from county records.0.48
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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 · 164 ft²Patio · 248 ft²Porch · 678 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
Street Elementary School
Elementary · Grades PK–2 · 5.9 mi
M
Lincoln Jr High SchoolD+
Middle · Grades 6–8 · 6.4 mi
H
Coldspring-Oakhurst High SchoolD+
High · Grades 9–12 · 6.8 mi

District: Coldspring-Oakhurst Consolidated Independent School District

Neighborhood · ZIP 77331These 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.132
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
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.74%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.11%
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.1.5%
PopulationHow many people live in this area.7,665
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.37 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$58,096
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$79,398
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.52 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.62%

Owner Tools

Do you own this home?
Claim this home

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

18 Martinez 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 less than 84% of homes in San Jacinto County
  • Costs less per square foot than 90% of homes in Coldspring 77331
  • Smaller than 65% of homes in Coldspring 77331

What homes are worth in Coldspring 77331

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

This home
$38K$1.2M

This home is worth more than 18% of homes in Coldspring 77331.

How it measures up in Coldspring 77331

The dot is this home. The mark in the middle is the typical home in Coldspring 77331.

Estimated value$100,147
CheaperTypical $257,735Pricier

Pricier than 18% of homes nearby

Price per ft²$90
CheaperTypical $179Pricier

Pricier than 10% of homes nearby

Living area1,108 ft²
SmallerTypical 1,340 ft²Bigger

Bigger than 35% of homes nearby

Lot size0.48 ac
SmallerTypical 0.37 acBigger

Bigger than 60% of homes nearby

Year built1999
OlderTypical 1992Newer

Newer than 64% of homes nearby

How 18 Martinez St ranks against every home in each area.
MeasureThis homeColdspring 77331San Jacinto County
Estimated valuepricier than$100,14718% of homes16% of homes
Price per ft²pricier than$9010% of homes10% of homes
Living areabigger than1,108 ft²35% of homes38% of homes
Lot sizebigger than0.48 ac60% of homes48% of homes
Year builtnewer than199964% of homes58% of homes

About 18 Martinez St

How much is 18 Martinez St, Coldspring, TX worth?

The TopHap Estimate for 18 Martinez St, Coldspring, TX is $100,147 as of Jul 14, 2026. The likely range is $92,204 to $108,090. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Martinez St, Coldspring, TX last sell?

18 Martinez St, Coldspring, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 18 Martinez St, Coldspring, TX?

18 Martinez St, Coldspring, TX has 1 bathrooms, 1,108 square feet of living space and a 0.48-acre lot.

When was 18 Martinez St, Coldspring, TX built?

18 Martinez St, Coldspring, TX was built in 1999, making it 27 years old. The building has 1 story.

What schools serve 18 Martinez St, Coldspring, TX?

18 Martinez St, Coldspring, TX is assigned to Street Elementary School (elementary); Lincoln Jr High School (middle), rated D+; Coldspring-Oakhurst High School (high), rated D+. All sit in Coldspring-Oakhurst Consolidated Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Martinez St, Coldspring, TX compare to other homes in Coldspring 77331?

Among the 3,881 homes in Coldspring 77331, it is worth more than 18% of them ($100,147 against a typical $257,735), its price per square foot is higher than 10% of them ($90 against a typical $179), it is bigger than 35% of them (1,108 ft² against a typical 1,340 ft²), its lot is bigger than 60% of them (0.48 ac against a typical 0.37 ac) and it is newer than 64% of them (1999 against a typical 1992). Measured against all of San Jacinto County, it is worth more than 16% 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 18 Martinez St, Coldspring, TX?

The 2025 property tax bill for 18 Martinez St, Coldspring, TX was $1,530. The county assessed it at $118,460.

More homes on Martinez St

Closest homes

More homes in Coldspring 77331

Assigned schools

Explore the area

See this home in context

Open 18 Martinez St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map