Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$841,072$610 / 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 Aug 30, 2026
Last sold for $810,000 on Jun 10, 2025

3900 ROSEBAY ST

CHINO HILLS, CA 91709
3
Beds
2
Baths
1,379 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
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

$841K
$783K low$899K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$810,000 · Jun 10, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,284 (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.$826,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$290,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$535,500

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Modern
CountySAN BERNARDINO
Lot (acres)The size of the land the home sits on, from county records.0.20
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Builtup (layered Asphalt)
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.Patio · 672 ft²Porch · 672 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.

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

M
Robert O. Townsend Junior High SchoolA+
Middle · Grades 7–8 · 0.6 mi
E
Glenmeade Elementary SchoolB+
Elementary · Grades KG–6 · 1.0 mi
H
Chino Hills High SchoolA-
High · Grades 9–12 · 1.9 mi

District: Chino Valley Unified School District

Neighborhood · ZIP 91709These 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.39
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.417

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.76,130
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,959 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$109,653
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$138,351
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.19 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

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 Rosebay 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.

  • Worth more than 89% of homes in San Bernardino County
  • Costs more per square foot than 98% of homes in San Bernardino County
  • Smaller than 82% of homes in Chino Hills 91709
  • Has a bigger lot than 76% of homes in Chino Hills 91709
  • Older than 91% of homes in Chino Hills 91709

What homes are worth in Chino Hills 91709

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

This home
$456K$2.1M

This home is worth more than 31% of homes in Chino Hills 91709.

How it measures up in Chino Hills 91709

The dot is this home. The mark in the middle is the typical home in Chino Hills 91709.

Estimated value$841,072
CheaperTypical $962,085Pricier

Pricier than 31% of homes nearby

Price per ft²$610
CheaperTypical $489Pricier

Pricier than 93% of homes nearby

Living area1,379 ft²
SmallerTypical 1,999 ft²Bigger

Bigger than 18% of homes nearby

Lot size0.2 ac
SmallerTypical 0.15 acBigger

Bigger than 76% of homes nearby

Year built1974
OlderTypical 1990Newer

Newer than 9% of homes nearby

How 3900 Rosebay St ranks against every home in each area.
MeasureThis homeChino Hills 91709San Bernardino County
Estimated valuepricier than$841,07231% of homes89% of homes
Price per ft²pricier than$61093% of homes98% of homes
Living areabigger than1,379 ft²18% of homes36% of homes
Lot sizebigger than0.2 ac76% of homes58% of homes
Year builtnewer than19749% of homes33% of homes

About 3900 Rosebay St

How much is 3900 Rosebay St, Chino Hills, CA worth?

The TopHap Estimate for 3900 Rosebay St, Chino Hills, CA is $841,072 as of Aug 30, 2026. The likely range is $782,781 to $899,363. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3900 Rosebay St, Chino Hills, CA last sell?

3900 Rosebay St, Chino Hills, CA last sold on Jun 10, 2025 for $810,000, according to the county's recorded deed.

How big is 3900 Rosebay St, Chino Hills, CA?

3900 Rosebay St, Chino Hills, CA has 3 bedrooms, 2 bathrooms, 1,379 square feet of living space and a 0.20-acre lot.

When was 3900 Rosebay St, Chino Hills, CA built?

3900 Rosebay St, Chino Hills, CA was built in 1974, making it 52 years old. It is a modern home. The building has 1 story.

What schools serve 3900 Rosebay St, Chino Hills, CA?

3900 Rosebay St, Chino Hills, CA is assigned to Robert O. Townsend Junior High School (middle), rated A+; Glenmeade Elementary School (elementary), rated B+; Chino Hills High School (high), rated A-. All sit in Chino Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3900 Rosebay St, Chino Hills, CA compare to other homes in Chino Hills 91709?

Among the 22,709 homes in Chino Hills 91709, it is worth more than 31% of them ($841,072 against a typical $962,085), its price per square foot is higher than 93% of them ($610 against a typical $489), it is bigger than 18% of them (1,379 ft² against a typical 1,999 ft²), its lot is bigger than 76% of them (0.2 ac against a typical 0.15 ac) and it is newer than 9% of them (1974 against a typical 1990). Measured against all of San Bernardino County, it is worth more than 89% 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 Rosebay St, Chino Hills, CA?

The 2025 property tax bill for 3900 Rosebay St, Chino Hills, CA was $2,284. The county assessed it at $826,200.

More homes on Rosebay St

Closest homes

More homes in Chino Hills 91709

Assigned schools

Explore the area

See this home in context

Open 3900 Rosebay St 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