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Single Family ResidenceResidential
$394,066$206 / 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

18 SIDNEY ST

HOUSTON, TX 77003
Building report
3
Beds
3.5
Baths
1,911 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.
2,500 ft²
Lot SizeThe size of the land the home sits on, from county records.
2023
Year BuiltThe year the home was originally built, according to county records.
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

$394K
$365K low$423K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,040 (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.$375,155 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$110,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$265,155
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$368,144
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$375,155

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.13 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.0.06
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Lantrip Elementary SchoolB-
Elementary · Grades EE–5 · 0.6 mi
M
Navarro Middle SchoolD-
Middle · Grades 6–8 · 1.0 mi
H
Austin High SchoolF
High · Grades 9–12 · 1.1 mi

District: Houston Independent School District

Neighborhood · ZIP 77003These 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.168
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.19

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.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.22%
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.12,460
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,501 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$82,049
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,682
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

18 Sidney 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 more than 74% of homes in Harris County
  • Costs more per square foot than 83% of homes in Harris County
  • Has a smaller lot than 94% of homes in Harris County
  • Newer than 98% of homes in Houston 77003

What homes are worth in Houston 77003

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

This home
$216K$648K

This home is worth more than 60% of homes in Houston 77003.

How it measures up in Houston 77003

The dot is this home. The mark in the middle is the typical home in Houston 77003.

Estimated value$394,066
CheaperTypical $373,086Pricier

Pricier than 60% of homes nearby

Price per ft²$206
CheaperTypical $204Pricier

Pricier than 53% of homes nearby

Living area1,911 ft²
SmallerTypical 1,926 ft²Bigger

Bigger than 48% of homes nearby

Lot size2,500 ft²
SmallerTypical 1,960 ft²Bigger

Bigger than 62% of homes nearby

Year built2023
OlderTypical 2007Newer

Newer than 98% of homes nearby

How 18 Sidney St ranks against every home in each area.
MeasureThis homeHouston 77003Harris County
Estimated valuepricier than$394,06660% of homes74% of homes
Price per ft²pricier than$20653% of homes83% of homes
Living areabigger than1,911 ft²48% of homes51% of homes
Lot sizebigger than2,500 ft²62% of homes6% of homes
Year builtnewer than202398% of homes97% of homes

About 18 Sidney St

How much is 18 Sidney St, Houston, TX worth?

The TopHap Estimate for 18 Sidney St, Houston, TX is $394,066 as of Sep 24, 2026. The likely range is $364,762 to $423,370. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Sidney St, Houston, TX last sell?

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

How big is 18 Sidney St, Houston, TX?

18 Sidney St, Houston, TX has 3 bedrooms, 3.5 bathrooms, 1,911 square feet of living space and a 0.06-acre lot.

When was 18 Sidney St, Houston, TX built?

18 Sidney St, Houston, TX was built in 2023, making it 3 years old.

What schools serve 18 Sidney St, Houston, TX?

18 Sidney St, Houston, TX is assigned to Lantrip Elementary School (elementary), rated B-; Navarro Middle School (middle), rated D-; Austin High School (high), rated F. All sit in Houston Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Sidney St, Houston, TX compare to other homes in Houston 77003?

Among the 4,013 homes in Houston 77003, it is worth more than 60% of them ($394,066 against a typical $373,086), its price per square foot is higher than 53% of them ($206 against a typical $204), it is bigger than 48% of them (1,911 ft² against a typical 1,926 ft²), its lot is bigger than 62% of them (2,500 ft² against a typical 1,960 ft²) and it is newer than 98% of them (2023 against a typical 2007). Measured against all of Harris County, it is worth more than 74% 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 Sidney St, Houston, TX?

The 2025 property tax bill for 18 Sidney St, Houston, TX was $5,040. The county assessed it at $375,155.

More homes on Sidney St

Closest homes

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Assigned schools

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