Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$366,665$255 / 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 88How 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 $113,400 on May 5, 1997

3900 RIDGE ROCK DR

PLANO, TX 75074
3
Beds
2
Baths
1,439 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1997
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$367K
$324K low$409K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$113,400 · May 5, 1997

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$681 (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.$349,495 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$100,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$249,495
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$346,215
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$349,495

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.0.16
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.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 · 240 ft²

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

E
Dooley Elementary SchoolB-
Elementary · Grades KG–5 · 1.3 mi
H
Plano East Senior High SchoolA-
High · Grades 11–12 · 1.8 mi
M
Bowman Middle SchoolB+
Middle · Grades 6–8 · 1.9 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

3900 Ridge Rock 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 less than 79% of homes in Collin County
  • Costs more per square foot than 95% of homes in Plano 75074
  • Smaller than 92% of homes in Collin County
  • Has a smaller lot than 72% of homes in Plano 75074
  • Newer than 68% of homes in Plano 75074

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
$211K$854K

This home is worth more than 48% 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$366,665
CheaperTypical $373,834Pricier

Pricier than 48% of homes nearby

Price per ft²$255
CheaperTypical $209Pricier

Pricier than 95% of homes nearby

Living area1,439 ft²
SmallerTypical 1,864 ft²Bigger

Bigger than 27% of homes nearby

Lot size0.16 ac
SmallerTypical 0.19 acBigger

Bigger than 28% of homes nearby

Year built1997
OlderTypical 1983Newer

Newer than 68% of homes nearby

How 3900 Ridge Rock Dr ranks against every home in each area.
MeasureThis homePlano 75074Collin County
Estimated valuepricier than$366,66548% of homes21% of homes
Price per ft²pricier than$25595% of homes86% of homes
Living areabigger than1,439 ft²27% of homes8% of homes
Lot sizebigger than0.16 ac28% of homes36% of homes
Year builtnewer than199768% of homes33% of homes

About 3900 Ridge Rock Dr

How much is 3900 Ridge Rock Dr, Plano, TX worth?

The TopHap Estimate for 3900 Ridge Rock Dr, Plano, TX is $366,665 as of Sep 24, 2026. The likely range is $324,248 to $409,082. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3900 Ridge Rock Dr, Plano, TX last sell?

3900 Ridge Rock Dr, Plano, TX last sold on May 5, 1997 for $113,400, according to the county's recorded deed.

How big is 3900 Ridge Rock Dr, Plano, TX?

3900 Ridge Rock Dr, Plano, TX has 3 bedrooms, 2 bathrooms, 1,439 square feet of living space and a 0.16-acre lot.

When was 3900 Ridge Rock Dr, Plano, TX built?

3900 Ridge Rock Dr, Plano, TX was built in 1997, making it 29 years old. The building has 1 story.

What schools serve 3900 Ridge Rock Dr, Plano, TX?

3900 Ridge Rock Dr, Plano, TX is assigned to Dooley Elementary School (elementary), rated B-; Plano East Senior High School (high), rated A-; Bowman Middle School (middle), rated B+. All sit in Plano Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3900 Ridge Rock Dr, Plano, TX compare to other homes in Plano 75074?

Among the 13,262 homes in Plano 75074, it is worth more than 48% of them ($366,665 against a typical $373,834), its price per square foot is higher than 95% of them ($255 against a typical $209), it is bigger than 27% of them (1,439 ft² against a typical 1,864 ft²), its lot is bigger than 28% of them (0.16 ac against a typical 0.19 ac) and it is newer than 68% of them (1997 against a typical 1983). Measured against all of Collin County, it is worth more than 21% 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 3900 Ridge Rock Dr, Plano, TX?

The 2025 property tax bill for 3900 Ridge Rock Dr, Plano, TX was $681. The county assessed it at $349,495.

More homes on Ridge Rock Dr

Closest homes

More homes in Plano 75074

Assigned schools

Explore the area

See this home in context

Open 3900 Ridge Rock 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