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Single Family ResidenceResidential
$1,920,256$778 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $657,000 on Jul 17, 2012

42 ROCK LN

BERKELEY, CA 94708
3
Beds
3
Baths
2,468 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.
3,648 ft²
Lot SizeThe size of the land the home sits on, from county records.
1926
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

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.$657,000 · Jul 17, 2012
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$990,256
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$792,205
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.42%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$548,000
PLAZA LOANS · recorded Feb 27, 2015
2nd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$382,000
SNAPFI INC

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,661 (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.$818,191 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$247,557
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$577,634
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$802,015
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,585,530

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
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.1940
Lot (acres)The size of the land the home sits on, from county records.0.08
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Martin Luther King Jr. Middle SchoolA
Middle · Grades 6–8 · 1.1 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

42 Rock 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 90% of homes in Alameda County
  • Costs less per square foot than 72% of homes in Berkeley Hills
  • Bigger than 84% of homes in Alameda County
  • Has a smaller lot than 97% of homes in Berkeley 94708
  • Older than 84% of homes in Berkeley 94708

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
$977K$3M

This home is worth more than 75% 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$1,920,256
CheaperTypical $1,601,038Pricier

Pricier than 75% of homes nearby

Price per ft²$778
CheaperTypical $849Pricier

Pricier than 30% of homes nearby

Living area2,468 ft²
SmallerTypical 1,929 ft²Bigger

Bigger than 76% of homes nearby

Lot size3,648 ft²
SmallerTypical 0.14 acBigger

Bigger than 3% of homes nearby

Year built1926
OlderTypical 1941Newer

Newer than 16% of homes nearby

How 42 Rock Ln ranks against every home in each area.
MeasureThis homeBerkeley HillsBerkeley 94708Alameda County
Estimated valuepricier than$1,920,25668% of homes75% of homes90% of homes
Price per ft²pricier than$77828% of homes30% of homes70% of homes
Living areabigger than2,468 ft²71% of homes76% of homes84% of homes
Lot sizebigger than3,648 ft²5% of homes3% of homes15% of homes
Year builtnewer than192629% of homes16% of homes18% of homes

About 42 Rock Ln

How much is 42 Rock Ln, Berkeley, CA worth?

The TopHap Estimate for 42 Rock Ln, Berkeley, CA is $1,920,256 as of Jul 14, 2026. The likely range is $1,748,733 to $2,091,779. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 42 Rock Ln, Berkeley, CA last sell?

42 Rock Ln, Berkeley, CA last sold on Jul 17, 2012 for $657,000, according to the county's recorded deed.

How big is 42 Rock Ln, Berkeley, CA?

42 Rock Ln, Berkeley, CA has 3 bedrooms, 3 bathrooms, 2,468 square feet of living space and a 0.08-acre lot.

When was 42 Rock Ln, Berkeley, CA built?

42 Rock Ln, Berkeley, CA was built in 1926, making it 100 years old. The building has 2 stories.

What schools serve 42 Rock Ln, Berkeley, CA?

42 Rock 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 42 Rock Ln, Berkeley, CA compare to other homes in Berkeley 94708?

Among the 4,615 homes in Berkeley 94708, it is worth more than 75% of them ($1,920,256 against a typical $1,601,038), its price per square foot is higher than 30% of them ($778 against a typical $849), it is bigger than 76% of them (2,468 ft² against a typical 1,929 ft²), its lot is bigger than 3% of them (3,648 ft² against a typical 0.14 ac) and it is newer than 16% of them (1926 against a typical 1941). Measured against all of Alameda County, it is worth more than 90% 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 42 Rock Ln, Berkeley, CA?

The 2025 property tax bill for 42 Rock Ln, Berkeley, CA was $15,661. The county assessed it at $818,191.

Closest homes

More homes in Berkeley 94708

Assigned schools

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