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Single Family ResidenceResidential
$1,045,296$246 / 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 $513,000 on Apr 17, 2006

17421 RIVER HILL DR

DALLAS, TX 75287
4
Beds
4
Baths
4,245 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1983
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1M
$974K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$513,000 · Apr 17, 2006

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,881 (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.$1,037,922 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$943,565
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,054,403

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.3 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.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
CountyCOLLIN
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2000
Lot (acres)The size of the land the home sits on, from county records.0.34
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
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.Yes

Transaction History(4)

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
Mitchell Elementary SchoolB
Elementary · Grades PK–5 · 0.7 mi
M
Frankford Middle SchoolC
Middle · Grades 6–8 · 3.1 mi
H
Plano West Senior High SchoolA-
High · Grades 11–12 · 3.8 mi

District: Plano Independent School District

Neighborhood · ZIP 75287These 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.154
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.25

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.62,741
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.11,150 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$66,852
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,726
Average tempThe average temperature here across a full year.65°F
Annual precipHow much rain and melted snow falls here in a typical year.39 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.62%

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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

17421 River Hill 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.

  • Worth more than 94% of homes in Collin County
  • Costs more per square foot than 82% of homes in Collin County
  • Bigger than 93% of homes in Collin County
  • Has a bigger lot than 94% of homes in Dallas 75287
  • Older than 86% of homes in Collin County

What homes are worth in Dallas 75287

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

This home
$162K$1.8M

This home is worth more than 89% of homes in Dallas 75287.

How it measures up in Dallas 75287

The dot is this home. The mark in the middle is the typical home in Dallas 75287.

Estimated value$1,045,296
CheaperTypical $464,983Pricier

Pricier than 89% of homes nearby

Price per ft²$246
CheaperTypical $226Pricier

Pricier than 69% of homes nearby

Living area4,245 ft²
SmallerTypical 2,215 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.34 ac
SmallerTypical 0.18 acBigger

Bigger than 94% of homes nearby

Year built1983
OlderTypical 1986Newer

Newer than 23% of homes nearby

How 17421 River Hill Dr ranks against every home in each area.
MeasureThis homeBent TreeDallas 75287Collin County
Estimated valuepricier than$1,045,29672% of homes89% of homes94% of homes
Price per ft²pricier than$24655% of homes69% of homes82% of homes
Living areabigger than4,245 ft²79% of homes89% of homes93% of homes
Lot sizebigger than0.34 ac78% of homes94% of homes84% of homes
Year builtnewer than198336% of homes23% of homes14% of homes

About 17421 River Hill Dr

How much is 17421 River Hill Dr, Dallas, TX worth?

The TopHap Estimate for 17421 River Hill Dr, Dallas, TX is $1,045,296 as of Sep 24, 2026. The likely range is $974,089 to $1,116,503. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17421 River Hill Dr, Dallas, TX last sell?

17421 River Hill Dr, Dallas, TX last sold on Apr 17, 2006 for $513,000, according to the county's recorded deed.

How big is 17421 River Hill Dr, Dallas, TX?

17421 River Hill Dr, Dallas, TX has 4 bedrooms, 4 bathrooms, 4,245 square feet of living space and a 0.34-acre lot.

When was 17421 River Hill Dr, Dallas, TX built?

17421 River Hill Dr, Dallas, TX was built in 1983, making it 43 years old. The building has 2 stories.

What schools serve 17421 River Hill Dr, Dallas, TX?

17421 River Hill Dr, Dallas, TX is assigned to Mitchell Elementary School (elementary), rated B; Frankford Middle School (middle), rated C; Plano West Senior High School (high), rated A-. All sit in Plano Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17421 River Hill Dr, Dallas, TX compare to other homes in Dallas 75287?

Among the 6,605 homes in Dallas 75287, it is worth more than 89% of them ($1,045,296 against a typical $464,983), its price per square foot is higher than 69% of them ($246 against a typical $226), it is bigger than 89% of them (4,245 ft² against a typical 2,215 ft²), its lot is bigger than 94% of them (0.34 ac against a typical 0.18 ac) and it is newer than 23% of them (1983 against a typical 1986). Measured against all of Collin County, it is worth more than 94% 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 17421 River Hill Dr, Dallas, TX?

The 2025 property tax bill for 17421 River Hill Dr, Dallas, TX was $7,881. The county assessed it at $1,037,922.

More homes on River Hill Dr

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