Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential

21731 SIERRA LONG DR

RICHMOND, TX 77407
3
Beds
2
Baths
1,713 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2010
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,934 (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.$288,718 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$35,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$253,618
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$288,718
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$288,718

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.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.minimal

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
CountyFort Bend
Lot (acres)The size of the land the home sits on, from county records.0.14
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.Porch · 124 ft²

Transaction History(2)

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
Adolphus Elementary SchoolA+
Elementary · Grades PK–5 · 2.3 mi
M
Banks Junior High School
Middle · Grades 7–8 · 3.3 mi
H
Tomas High School
High · Grades 9–12 · 3.3 mi

District: Lamar Consolidated Independent School District

Neighborhood · ZIP 77407These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.87,060
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,483 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,416
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$131,989
Average tempThe average temperature here across a full year.69°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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

21731 Sierra Long Dr 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.

  • Smaller than 91% of homes in Richmond 77407
  • Has a smaller lot than 82% of homes in Fort Bend County

How it measures up in Richmond 77407

The dot is this home. The mark in the middle is the typical home in Richmond 77407.

Living area1,713 ft²
SmallerTypical 2,515 ft²Bigger

Bigger than 9% of homes nearby

Lot size0.14 ac
SmallerTypical 0.16 acBigger

Bigger than 28% of homes nearby

Year built2010
OlderTypical 2013Newer

Newer than 40% of homes nearby

How 21731 Sierra Long Dr ranks against every home in each area.
MeasureThis homeRichmond 77407Fort Bend County
Living areabigger than1,713 ft²9% of homes19% of homes
Lot sizebigger than0.14 ac28% of homes18% of homes
Year builtnewer than201040% of homes63% of homes

About 21731 Sierra Long Dr

When did 21731 Sierra Long Dr, Richmond, TX last sell?

21731 Sierra Long Dr, Richmond, TX last sold on Apr 20, 2023, according to the county's recorded deed.

How big is 21731 Sierra Long Dr, Richmond, TX?

21731 Sierra Long Dr, Richmond, TX has 3 bedrooms, 2 bathrooms, 1,713 square feet of living space and a 0.14-acre lot.

When was 21731 Sierra Long Dr, Richmond, TX built?

21731 Sierra Long Dr, Richmond, TX was built in 2010, making it 16 years old. The building has 1 story.

What schools serve 21731 Sierra Long Dr, Richmond, TX?

21731 Sierra Long Dr, Richmond, TX is assigned to Adolphus Elementary School (elementary), rated A+; Banks Junior High School (middle); Tomas High School (high). All sit in Lamar Consolidated Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21731 Sierra Long Dr, Richmond, TX compare to other homes in Richmond 77407?

Among the 23,855 homes in Richmond 77407, it is bigger than 9% of them (1,713 ft² against a typical 2,515 ft²), its lot is bigger than 28% of them (0.14 ac against a typical 0.16 ac) and it is newer than 40% of them (2010 against a typical 2013). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21731 Sierra Long Dr, Richmond, TX?

The 2025 property tax bill for 21731 Sierra Long Dr, Richmond, TX was $4,934. The county assessed it at $288,718.

More homes on Sierra Long Dr

Closest homes

More homes in Richmond 77407

Assigned schools

Explore the area

See this home in context

Open 21731 Sierra Long Dr 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