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Single Family ResidenceResidential
$105,346$93 / 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 96How 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

320 ALLISON

GREGORY, TX 78359
0
Baths
1,127 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.
4,000 ft²
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$105K
$101K low$110K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$395 (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.$57,909 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$22,720
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$35,189
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$55,189
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$57,909

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.41
62
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
98
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
44
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
1
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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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
CountySAN PATRICIO
Lot (acres)The size of the land the home sits on, from county records.0.09
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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.DeckPatio · 72 ft²Porch · 72 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
Stephen F. Austin Elementary SchoolB
Elementary · Grades PK–5 · 0.6 mi
M
Gregory-Portland Middle SchoolB-
Middle · Grades 6–8 · 1.9 mi
H
Gregory-Portland High SchoolB
High · Grades 9–12 · 2.0 mi

District: Gregory-Portland Independent School District

Neighborhood · ZIP 78359These 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.150
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.22

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.85%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.5.9%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.26%
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.106
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.170 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$77,273
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,378
Average tempThe average temperature here across a full year.72°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.61%

Owner Tools

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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

320 Allison 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 88% of homes in San Patricio County
  • Costs less per square foot than 88% of homes in San Patricio County
  • Smaller than 75% of homes in San Patricio County
  • Has a smaller lot than 98% of homes in San Patricio County
  • Older than 81% of homes in San Patricio County

What homes are worth in Gregory 78359

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

This home
$80K$406K

This home is worth more than 17% of homes in Gregory 78359.

How it measures up in Gregory 78359

The dot is this home. The mark in the middle is the typical home in Gregory 78359.

Estimated value$105,346
CheaperTypical $128,081Pricier

Pricier than 17% of homes nearby

Price per ft²$93
CheaperTypical $109Pricier

Pricier than 23% of homes nearby

Living area1,127 ft²
SmallerTypical 1,184 ft²Bigger

Bigger than 45% of homes nearby

Lot size4,000 ft²
SmallerTypical 0.16 acBigger

Bigger than 3% of homes nearby

Year built1955
OlderTypical 1963Newer

Newer than 36% of homes nearby

How 320 Allison ranks against every home in each area.
MeasureThis homeGregory 78359San Patricio County
Estimated valuepricier than$105,34617% of homes12% of homes
Price per ft²pricier than$9323% of homes12% of homes
Living areabigger than1,127 ft²45% of homes25% of homes
Lot sizebigger than4,000 ft²3% of homes2% of homes
Year builtnewer than195536% of homes19% of homes

About 320 Allison

How much is 320 Allison, Gregory, TX worth?

The TopHap Estimate for 320 Allison, Gregory, TX is $105,346 as of Aug 30, 2026. The likely range is $100,999 to $109,693. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 320 Allison, Gregory, TX last sell?

320 Allison, Gregory, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 320 Allison, Gregory, TX?

320 Allison, Gregory, TX has 1,127 square feet of living space and a 0.09-acre lot.

When was 320 Allison, Gregory, TX built?

320 Allison, Gregory, TX was built in 1955, making it 71 years old. The building has 1 story.

What schools serve 320 Allison, Gregory, TX?

320 Allison, Gregory, TX is assigned to Stephen F. Austin Elementary School (elementary), rated B; Gregory-Portland Middle School (middle), rated B-; Gregory-Portland High School (high), rated B. All sit in Gregory-Portland Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 320 Allison, Gregory, TX compare to other homes in Gregory 78359?

Among the 776 homes in Gregory 78359, it is worth more than 17% of them ($105,346 against a typical $128,081), its price per square foot is higher than 23% of them ($93 against a typical $109), it is bigger than 45% of them (1,127 ft² against a typical 1,184 ft²), its lot is bigger than 3% of them (4,000 ft² against a typical 0.16 ac) and it is newer than 36% of them (1955 against a typical 1963). Measured against all of San Patricio County, it is worth more than 12% 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 320 Allison, Gregory, TX?

The 2025 property tax bill for 320 Allison, Gregory, TX was $395. The county assessed it at $57,909.

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