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Single Family ResidenceResidential
$856,851$772 / 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 95How 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 $747,000 on Jun 2, 2022

4 BLACKSTONE

IRVINE, CA 92604
2
Beds
1.5
Baths
1,110 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.
1,000 ft²
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$857K
$811K low$903K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$747,000 · Jun 2, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,422 (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.$808,359 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$736,020
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$72,339
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$792,509

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyORANGE
Lot (acres)The size of the land the home sits on, from county records.0.02
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(10)

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
Lakeside Middle SchoolA
Middle · Grades 7–8 · 0.5 mi
E
Stone Creek Elementary SchoolA+
Elementary · Grades KG–6 · 0.6 mi
H
Woodbridge High SchoolA+
High · Grades 9–12 · 1.0 mi

District: Irvine Unified School District

Neighborhood · ZIP 92604These 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.90
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.242

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.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.28,863
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,196 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,972
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$155,524
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.13 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.75%

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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

4 Blackstone 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 82% of homes in Irvine 92604
  • Costs more per square foot than 78% of homes in Orange County
  • Smaller than 87% of homes in Orange County
  • Among the smallest lots in Irvine 92604
  • Newer than 72% of homes in Irvine 92604

What homes are worth in Irvine 92604

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

This home
$567K$2.2M

This home is worth more than 18% of homes in Irvine 92604.

How it measures up in Irvine 92604

The dot is this home. The mark in the middle is the typical home in Irvine 92604.

Estimated value$856,851
CheaperTypical $1,209,709Pricier

Pricier than 18% of homes nearby

Price per ft²$772
CheaperTypical $720Pricier

Pricier than 66% of homes nearby

Living area1,110 ft²
SmallerTypical 1,633 ft²Bigger

Bigger than 14% of homes nearby

Lot size1,000 ft²
SmallerTypical 0.12 acBigger

Smaller than almost all homes nearby

Year built1977
OlderTypical 1976Newer

Newer than 72% of homes nearby

How 4 Blackstone ranks against every home in each area.
MeasureThis homeIrvine 92604Orange County
Estimated valuepricier than$856,85118% of homes31% of homes
Price per ft²pricier than$77266% of homes78% of homes
Living areabigger than1,110 ft²14% of homes13% of homes
Lot sizebigger than1,000 ft²almost no homesalmost no homes
Year builtnewer than197772% of homes56% of homes

About 4 Blackstone

How much is 4 Blackstone, Irvine, CA worth?

The TopHap Estimate for 4 Blackstone, Irvine, CA is $856,851 as of Aug 30, 2026. The likely range is $810,792 to $902,910. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4 Blackstone, Irvine, CA last sell?

4 Blackstone, Irvine, CA last sold on Jun 2, 2022 for $747,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 4 Blackstone, Irvine, CA?

4 Blackstone, Irvine, CA has 2 bedrooms, 1.5 bathrooms, 1,110 square feet of living space and a 0.02-acre lot.

When was 4 Blackstone, Irvine, CA built?

4 Blackstone, Irvine, CA was built in 1977, making it 49 years old. The building has 2 stories.

What schools serve 4 Blackstone, Irvine, CA?

4 Blackstone, Irvine, CA is assigned to Lakeside Middle School (middle), rated A; Stone Creek Elementary School (elementary), rated A+; Woodbridge High School (high), rated A+. All sit in Irvine Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4 Blackstone, Irvine, CA compare to other homes in Irvine 92604?

Among the 8,071 homes in Irvine 92604, it is worth more than 18% of them ($856,851 against a typical $1,209,709), its price per square foot is higher than 66% of them ($772 against a typical $720), it is bigger than 14% of them (1,110 ft² against a typical 1,633 ft²), its lot is bigger than almost none of them (1,000 ft² against a typical 0.12 ac) and it is newer than 72% of them (1977 against a typical 1976). Measured against all of Orange County, it is worth more than 31% 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 4 Blackstone, Irvine, CA?

The 2025 property tax bill for 4 Blackstone, Irvine, CA was $8,422. The county assessed it at $808,359.

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