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Single Family ResidenceResidential
$354,881$252 / 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 97How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

8340 ROCK BROOK ST

FRISCO, TX 75034
3
Beds
2
Baths
1,410 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.
1987
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

$355K
$343K low$366K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,574 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$333,907 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$104,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$229,407
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$383,761
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$333,907

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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
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.2005
ConstructionThe main material the home's frame and walls are built from.Frame (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.Wood
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 · 12 ft²

Transaction History(6)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(4)

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

E
Bright AcademyB-
Elementary · Grades PK–5 · 0.3 mi
H
Frisco High SchoolB
High · Grades 9–12 · 1.2 mi
M
Staley Middle SchoolB
Middle · Grades 6–8 · 1.2 mi

District: Frisco Independent School District

Neighborhood · ZIP 75034These 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.87
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.28

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
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.55,885
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,560 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$115,490
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$146,698
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%

Owner Tools

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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

8340 Rock Brook 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.

  • Among the least valuable homes in Frisco 75034
  • Costs more per square foot than 84% of homes in Collin County
  • Smaller than 96% of homes in Frisco 75034
  • Older than 94% of homes in Frisco 75034

What homes are worth in Frisco 75034

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

This home
$379K$3.5M

This home is worth less than almost all homes in Frisco 75034.

How it measures up in Frisco 75034

The dot is this home. The mark in the middle is the typical home in Frisco 75034.

Estimated value$354,881
CheaperTypical $858,151Pricier

Cheaper than almost all homes nearby

Price per ft²$252
CheaperTypical $254Pricier

Pricier than 48% of homes nearby

Living area1,410 ft²
SmallerTypical 3,434 ft²Bigger

Bigger than 4% of homes nearby

Year built1987
OlderTypical 2004Newer

Newer than 6% of homes nearby

How 8340 Rock Brook St ranks against every home in each area.
MeasureThis homeStonebrookFrisco 75034Collin County
Estimated valuepricier than$354,8812% of homesalmost no homes18% of homes
Price per ft²pricier than$25261% of homes48% of homes84% of homes
Living areabigger than1,410 ft²5% of homes4% of homes8% of homes
Year builtnewer than198711% of homes6% of homes19% of homes

About 8340 Rock Brook St

How much is 8340 Rock Brook St, Frisco, TX worth?

The TopHap Estimate for 8340 Rock Brook St, Frisco, TX is $354,881 as of Aug 30, 2026. The likely range is $343,474 to $366,288. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8340 Rock Brook St, Frisco, TX last sell?

8340 Rock Brook St, Frisco, TX last sold on Dec 8, 2008, according to the county's recorded deed.

How big is 8340 Rock Brook St, Frisco, TX?

8340 Rock Brook St, Frisco, TX has 3 bedrooms, 2 bathrooms and 1,410 square feet of living space.

When was 8340 Rock Brook St, Frisco, TX built?

8340 Rock Brook St, Frisco, TX was built in 1987, making it 39 years old. The building has 1 story.

What schools serve 8340 Rock Brook St, Frisco, TX?

8340 Rock Brook St, Frisco, TX is assigned to Bright Academy (elementary), rated B-; Frisco High School (high), rated B; Staley Middle School (middle), rated B. All sit in Frisco Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8340 Rock Brook St, Frisco, TX compare to other homes in Frisco 75034?

Among the 11,016 homes in Frisco 75034, it is worth more than almost none of them ($354,881 against a typical $858,151), its price per square foot is higher than 48% of them ($252 against a typical $254), it is bigger than 4% of them (1,410 ft² against a typical 3,434 ft²) and it is newer than 6% of them (1987 against a typical 2004). Measured against all of Collin County, it is worth more than 18% 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 8340 Rock Brook St, Frisco, TX?

The 2024 property tax bill for 8340 Rock Brook St, Frisco, TX was $6,574. The county assessed it at $333,907.

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