Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$407,757$175 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $157,000 on Mar 12, 1999

3509 ROCKBROOK DR

PLANO, TX 75074
4
Beds
3
Baths
2,333 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1984
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
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

$408K
$385K low$430K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$157,000 · Mar 12, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$937 (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.$412,916 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$85,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$327,916
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$381,904
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$412,916

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.2005
Lot (acres)The size of the land the home sits on, from county records.0.23
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
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 · 475 ft²

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
Meadows Elementary SchoolB
Elementary · Grades KG–5 · 0.7 mi
H
Plano East Senior High SchoolA-
High · Grades 11–12 · 1.4 mi
M
Otto Middle SchoolA-
Middle · Grades 6–8 · 1.8 mi

District: Plano Independent School District

Neighborhood · ZIP 75074These 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.107
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.62,117
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,879 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$79,836
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,806
Average tempThe average temperature here across a full year.65°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.62%

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

3509 Rockbrook 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 79% of homes in Briarwood
  • Costs less per square foot than 90% of homes in Plano 75074
  • Bigger than 80% of homes in Briarwood
  • Has a bigger lot than 81% of homes in Plano 75074
  • Older than 85% of homes in Collin County

What homes are worth in Plano 75074

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

This home
$215K$861K

This home is worth more than 56% of homes in Plano 75074.

How it measures up in Plano 75074

The dot is this home. The mark in the middle is the typical home in Plano 75074.

Estimated value$407,757
CheaperTypical $376,323Pricier

Pricier than 56% of homes nearby

Price per ft²$175
CheaperTypical $209Pricier

Pricier than 10% of homes nearby

Living area2,333 ft²
SmallerTypical 1,818 ft²Bigger

Bigger than 70% of homes nearby

Lot size0.23 ac
SmallerTypical 0.18 acBigger

Bigger than 81% of homes nearby

Year built1984
OlderTypical 1983Newer

Newer than 54% of homes nearby

How 3509 Rockbrook Dr ranks against every home in each area.
MeasureThis homeBriarwoodPlano 75074Collin County
Estimated valuepricier than$407,75779% of homes56% of homes27% of homes
Price per ft²pricier than$17545% of homes10% of homes15% of homes
Living areabigger than2,333 ft²80% of homes70% of homes46% of homes
Lot sizebigger than0.23 ac56% of homes81% of homes67% of homes
Year builtnewer than198473% of homes54% of homes15% of homes

About 3509 Rockbrook Dr

How much is 3509 Rockbrook Dr, Plano, TX worth?

The TopHap Estimate for 3509 Rockbrook Dr, Plano, TX is $407,757 as of Jul 14, 2026. The likely range is $385,257 to $430,257. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3509 Rockbrook Dr, Plano, TX last sell?

3509 Rockbrook Dr, Plano, TX last sold on Mar 12, 1999 for $157,000, according to the county's recorded deed.

How big is 3509 Rockbrook Dr, Plano, TX?

3509 Rockbrook Dr, Plano, TX has 4 bedrooms, 3 bathrooms, 2,333 square feet of living space and a 0.23-acre lot.

When was 3509 Rockbrook Dr, Plano, TX built?

3509 Rockbrook Dr, Plano, TX was built in 1984, making it 42 years old. The building has 1 story.

What schools serve 3509 Rockbrook Dr, Plano, TX?

3509 Rockbrook Dr, Plano, TX is assigned to Meadows Elementary School (elementary), rated B; Plano East Senior High School (high), rated A-; Otto Middle School (middle), rated A-. All sit in Plano Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3509 Rockbrook Dr, Plano, TX compare to other homes in Plano 75074?

Among the 13,389 homes in Plano 75074, it is worth more than 56% of them ($407,757 against a typical $376,323), its price per square foot is higher than 10% of them ($175 against a typical $209), it is bigger than 70% of them (2,333 ft² against a typical 1,818 ft²), its lot is bigger than 81% of them (0.23 ac against a typical 0.18 ac) and it is newer than 54% of them (1984 against a typical 1983). Measured against all of Collin County, it is worth more than 27% 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 3509 Rockbrook Dr, Plano, TX?

The 2025 property tax bill for 3509 Rockbrook Dr, Plano, TX was $937. The county assessed it at $412,916.

More homes on Rockbrook Dr

Closest homes

More homes in Plano 75074

Assigned schools

Explore the area

See this home in context

Open 3509 Rockbrook 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