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Single Family ResidenceResidential
$365,756$202 / 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 93How 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
Last sold for $454,733 on Jul 26, 2021

821 MARTIN ST

HOUSTON, TX 77018
3
Beds
2.5
Baths
1,814 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.
1,978 ft²
Lot SizeThe size of the land the home sits on, from county records.
2020
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$366K
$340K low$391K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$454,733 · Jul 26, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,327 (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.$408,531 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$99,979
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$308,552
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$385,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$408,531

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.7 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
CountyHARRIS
Lot (acres)The size of the land the home sits on, from county records.0.04
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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

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
Durham Elementary SchoolB
Elementary · Grades EE–5 · 0.2 mi
H
Waltrip High SchoolD
High · Grades 9–12 · 1.6 mi
M
Black Middle SchoolB
Middle · Grades 6–8 · 1.6 mi

District: Houston Independent School District

Neighborhood · ZIP 77018These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.24

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.29,195
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,310 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$118,915
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$153,300
Average tempThe average temperature here across a full year.69°F
Annual precipHow much rain and melted snow falls here in a typical year.51 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

821 Martin 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 86% of homes in Houston 77018
  • Costs less per square foot than 88% of homes in Houston 77018
  • Has a smaller lot than 96% of homes in Harris County
  • Newer than 92% of homes in Harris County

What homes are worth in Houston 77018

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

This home
$265K$1.7M

This home is worth more than 14% of homes in Houston 77018.

How it measures up in Houston 77018

The dot is this home. The mark in the middle is the typical home in Houston 77018.

Estimated value$365,756
CheaperTypical $582,266Pricier

Pricier than 14% of homes nearby

Price per ft²$202
CheaperTypical $308Pricier

Pricier than 12% of homes nearby

Living area1,814 ft²
SmallerTypical 1,952 ft²Bigger

Bigger than 43% of homes nearby

Lot size1,978 ft²
SmallerTypical 0.17 acBigger

Bigger than 14% of homes nearby

Year built2020
OlderTypical 1966Newer

Newer than 83% of homes nearby

How 821 Martin St ranks against every home in each area.
MeasureThis homeCentral NorthwestHouston 77018Harris County
Estimated valuepricier than$365,75628% of homes14% of homes70% of homes
Price per ft²pricier than$20223% of homes12% of homes82% of homes
Living areabigger than1,814 ft²50% of homes43% of homes46% of homes
Lot sizebigger than1,978 ft²7% of homes14% of homes4% of homes
Year builtnewer than202091% of homes83% of homes92% of homes

About 821 Martin St

How much is 821 Martin St, Houston, TX worth?

The TopHap Estimate for 821 Martin St, Houston, TX is $365,756 as of Sep 24, 2026. The likely range is $340,095 to $391,417. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 821 Martin St, Houston, TX last sell?

821 Martin St, Houston, TX last sold on Jul 26, 2021 for $454,733, according to the county's recorded deed.

How big is 821 Martin St, Houston, TX?

821 Martin St, Houston, TX has 3 bedrooms, 2.5 bathrooms, 1,814 square feet of living space and a 0.04-acre lot.

When was 821 Martin St, Houston, TX built?

821 Martin St, Houston, TX was built in 2020, making it 6 years old. The building has 2 stories.

What schools serve 821 Martin St, Houston, TX?

821 Martin St, Houston, TX is assigned to Durham Elementary School (elementary), rated B; Waltrip High School (high), rated D; Black Middle School (middle), rated B. All sit in Houston Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 821 Martin St, Houston, TX compare to other homes in Houston 77018?

Among the 12,015 homes in Houston 77018, it is worth more than 14% of them ($365,756 against a typical $582,266), its price per square foot is higher than 12% of them ($202 against a typical $308), it is bigger than 43% of them (1,814 ft² against a typical 1,952 ft²), its lot is bigger than 14% of them (1,978 ft² against a typical 0.17 ac) and it is newer than 83% of them (2020 against a typical 1966). Measured against all of Harris County, it is worth more than 70% 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 821 Martin St, Houston, TX?

The 2025 property tax bill for 821 Martin St, Houston, TX was $5,327. The county assessed it at $408,531.

More homes on Martin St

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Assigned schools

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