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Single Family ResidenceResidential
$1,918,248$1,114 / 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 Aug 30, 2026
Last sold for $1,820,000 on Dec 18, 2020

21 BONNIE LN

BERKELEY, CA 94708
3
Beds
3
Baths
1,722 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.
0.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1959
Year BuiltThe year the home was originally built, according to county records.
1
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.9M
$1.7M low$2.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,820,000 · Dec 18, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$29,659 (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.$2,009,388 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$602,816
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,406,572
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,970,004
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,870,380

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.Custom Design
CountyALAMEDA
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.1989
Lot (acres)The size of the land the home sits on, from county records.0.10
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
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(7)

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
Martin Luther King Jr. Middle SchoolA
Middle · Grades 6–8 · 1.2 mi
E
Berkeley Arts Magnet at Whittier (BAM)A+
Elementary · Grades KG–5 · 1.3 mi
H
Berkeley High SchoolA
High · Grades 9–12 · 1.9 mi

District: Berkeley Unified School District

Neighborhood · ZIP 94708These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.583

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.94%
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.6.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.11,977
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,453 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$190,538
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$233,719
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.26 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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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

21 Bonnie Ln 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 Alameda County
  • Costs more per square foot than 96% of homes in Alameda County
  • Smaller than 67% of homes in Berkeley Hills
  • Has a smaller lot than 86% of homes in Berkeley Hills
  • Newer than 86% of homes in Berkeley Hills

What homes are worth in Berkeley 94708

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

This home
$941K$3M

This home is worth more than 81% of homes in Berkeley 94708.

How it measures up in Berkeley 94708

The dot is this home. The mark in the middle is the typical home in Berkeley 94708.

Estimated value$1,918,248
CheaperTypical $1,507,665Pricier

Pricier than 81% of homes nearby

Price per ft²$1114
CheaperTypical $802Pricier

Pricier than 94% of homes nearby

Living area1,722 ft²
SmallerTypical 1,919 ft²Bigger

Bigger than 38% of homes nearby

Lot size0.1 ac
SmallerTypical 0.14 acBigger

Bigger than 18% of homes nearby

Year built1959
OlderTypical 1941Newer

Newer than 84% of homes nearby

How 21 Bonnie Ln ranks against every home in each area.
MeasureThis homeBerkeley HillsBerkeley 94708Alameda County
Estimated valuepricier than$1,918,24875% of homes81% of homes89% of homes
Price per ft²pricier than$111494% of homes94% of homes96% of homes
Living areabigger than1,722 ft²33% of homes38% of homes59% of homes
Lot sizebigger than0.1 ac14% of homes18% of homes26% of homes
Year builtnewer than195986% of homes84% of homes45% of homes

About 21 Bonnie Ln

How much is 21 Bonnie Ln, Berkeley, CA worth?

The TopHap Estimate for 21 Bonnie Ln, Berkeley, CA is $1,918,248 as of Aug 30, 2026. The likely range is $1,689,999 to $2,146,497. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Bonnie Ln, Berkeley, CA last sell?

21 Bonnie Ln, Berkeley, CA last sold on Dec 18, 2020 for $1,820,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 21 Bonnie Ln, Berkeley, CA?

21 Bonnie Ln, Berkeley, CA has 3 bedrooms, 3 bathrooms, 1,722 square feet of living space and a 0.10-acre lot.

When was 21 Bonnie Ln, Berkeley, CA built?

21 Bonnie Ln, Berkeley, CA was built in 1959, making it 67 years old. It is a custom design home. The building has 1 story.

What schools serve 21 Bonnie Ln, Berkeley, CA?

21 Bonnie Ln, Berkeley, CA is assigned to Martin Luther King Jr. Middle School (middle), rated A; Berkeley Arts Magnet at Whittier (BAM) (elementary), rated A+; Berkeley High School (high), rated A. All sit in Berkeley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Bonnie Ln, Berkeley, CA compare to other homes in Berkeley 94708?

Among the 4,608 homes in Berkeley 94708, it is worth more than 81% of them ($1,918,248 against a typical $1,507,665), its price per square foot is higher than 94% of them ($1114 against a typical $802), it is bigger than 38% of them (1,722 ft² against a typical 1,919 ft²), its lot is bigger than 18% of them (0.1 ac against a typical 0.14 ac) and it is newer than 84% of them (1959 against a typical 1941). Measured against all of Alameda 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 21 Bonnie Ln, Berkeley, CA?

The 2025 property tax bill for 21 Bonnie Ln, Berkeley, CA was $29,659. The county assessed it at $2,009,388.

More homes on Bonnie Ln

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