Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$771,595$571 / 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 Sep 24, 2026

4018 PORTSMOUTH AVE

HOUSTON, TX 77027
3
Beds
1.5
Baths
1,351 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
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

$772K
$703K low$841K high

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$661,600 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$661,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$661,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$661,600

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Traditional/Old
CountyHARRIS
Lot (acres)The size of the land the home sits on, from county records.0.17
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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
ViewThe type of view from the property, or another feature of the site that affects value.Neighborhood
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 1,499 ft²

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

H
Lamar High SchoolB-
High · Grades 9–12 · 1.1 mi
E
The School at St. George PlaceB+
Elementary · Grades EE–5 · 1.8 mi
M
Lanier Middle SchoolA+
Middle · Grades 6–8 · 2.3 mi

District: Houston Independent School District

Neighborhood · ZIP 77027These 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.158
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.20

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.42%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.23,083
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,632 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,661
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$147,141
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%

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

4018 Portsmouth Ave 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 93% of homes in Harris County
  • Among the highest price per square foot in Harris County
  • Smaller than 79% of homes in Harris County
  • Has a smaller lot than 71% of homes in Houston 77027
  • Older than 91% of homes in Houston 77027

What homes are worth in Houston 77027

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

This home
$122K$4.5M

This home is worth more than 36% of homes in Houston 77027.

How it measures up in Houston 77027

The dot is this home. The mark in the middle is the typical home in Houston 77027.

Estimated value$771,595
CheaperTypical $1,101,702Pricier

Pricier than 36% of homes nearby

Price per ft²$571
CheaperTypical $433Pricier

Pricier than 77% of homes nearby

Living area1,351 ft²
SmallerTypical 2,371 ft²Bigger

Bigger than 24% of homes nearby

Lot size0.17 ac
SmallerTypical 0.23 acBigger

Bigger than 29% of homes nearby

Year built1950
OlderTypical 1979Newer

Newer than 9% of homes nearby

How 4018 Portsmouth Ave ranks against every home in each area.
MeasureThis homeHouston 77027Harris County
Estimated valuepricier than$771,59536% of homes93% of homes
Price per ft²pricier than$57177% of homesalmost all homes
Living areabigger than1,351 ft²24% of homes21% of homes
Lot sizebigger than0.17 ac29% of homes55% of homes
Year builtnewer than19509% of homes9% of homes

About 4018 Portsmouth Ave

How much is 4018 Portsmouth Ave, Houston, TX worth?

The TopHap Estimate for 4018 Portsmouth Ave, Houston, TX is $771,595 as of Sep 24, 2026. The likely range is $702,559 to $840,631. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4018 Portsmouth Ave, Houston, TX last sell?

4018 Portsmouth Ave, Houston, TX last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 4018 Portsmouth Ave, Houston, TX?

4018 Portsmouth Ave, Houston, TX has 3 bedrooms, 1.5 bathrooms, 1,351 square feet of living space and a 0.17-acre lot.

When was 4018 Portsmouth Ave, Houston, TX built?

4018 Portsmouth Ave, Houston, TX was built in 1950, making it 76 years old. It is a traditional/old home. The building has 1 story.

What schools serve 4018 Portsmouth Ave, Houston, TX?

4018 Portsmouth Ave, Houston, TX is assigned to Lamar High School (high), rated B-; The School at St. George Place (elementary), rated B+; Lanier Middle School (middle), rated A+. All sit in Houston Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4018 Portsmouth Ave, Houston, TX compare to other homes in Houston 77027?

Among the 4,775 homes in Houston 77027, it is worth more than 36% of them ($771,595 against a typical $1,101,702), its price per square foot is higher than 77% of them ($571 against a typical $433), it is bigger than 24% of them (1,351 ft² against a typical 2,371 ft²), its lot is bigger than 29% of them (0.17 ac against a typical 0.23 ac) and it is newer than 9% of them (1950 against a typical 1979). Measured against all of Harris County, it is worth more than 93% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Portsmouth Ave

Closest homes

More homes in Houston 77027

Assigned schools

Explore the area

See this home in context

Open 4018 Portsmouth Ave 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