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Single Family ResidenceResidential
$1,347,400$810 / 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

21 DEL MAR AVE

BERKELEY, CA 94708
2
Beds
1
Baths
1,664 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.
1954
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.3M
$1.2M low$1.5M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,454 (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.$114,624 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$44,227
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$77,397
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$112,239
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,282,320

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.1967
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.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Roll Tar & Gravel
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Bay

Transaction History(5)

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.

E
Berkeley Arts Magnet at Whittier (BAM)A+
Elementary · Grades KG–5 · 1.0 mi
H
Berkeley High SchoolA
High · Grades 9–12 · 1.4 mi
M
Willard Middle SchoolA+
Middle · Grades 6–8 · 1.7 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 Del Mar Ave 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 72% of homes in Berkeley Hills
  • Costs more per square foot than 75% of homes in Alameda County
  • Smaller than 70% of homes in Berkeley Hills
  • Has a bigger lot than 82% of homes in Berkeley Hills
  • Newer than 79% 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
$962K$3.1M

This home is worth more than 30% 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$1,347,400
CheaperTypical $1,519,705Pricier

Pricier than 30% of homes nearby

Price per ft²$810
CheaperTypical $805Pricier

Pricier than 51% of homes nearby

Living area1,664 ft²
SmallerTypical 1,932 ft²Bigger

Bigger than 34% of homes nearby

Lot size0.2 ac
SmallerTypical 0.14 acBigger

Bigger than 82% of homes nearby

Year built1954
OlderTypical 1941Newer

Newer than 76% of homes nearby

How 21 Del Mar Ave ranks against every home in each area.
MeasureThis homeBerkeley HillsBerkeley 94708Alameda County
Estimated valuepricier than$1,347,40028% of homes30% of homes68% of homes
Price per ft²pricier than$81047% of homes51% of homes75% of homes
Living areabigger than1,664 ft²30% of homes34% of homes55% of homes
Lot sizebigger than0.2 ac82% of homes82% of homes75% of homes
Year builtnewer than195479% of homes76% of homes37% of homes

About 21 Del Mar Ave

How much is 21 Del Mar Ave, Berkeley, CA worth?

The TopHap Estimate for 21 Del Mar Ave, Berkeley, CA is $1,347,400 as of Sep 24, 2026. The likely range is $1,179,590 to $1,515,210. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Del Mar Ave, Berkeley, CA last sell?

21 Del Mar Ave, Berkeley, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Del Mar Ave, Berkeley, CA?

21 Del Mar Ave, Berkeley, CA has 2 bedrooms, 1 bathrooms, 1,664 square feet of living space and a 0.20-acre lot.

When was 21 Del Mar Ave, Berkeley, CA built?

21 Del Mar Ave, Berkeley, CA was built in 1954, making it 72 years old. It is a custom design home. The building has 1 story.

What schools serve 21 Del Mar Ave, Berkeley, CA?

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

How does 21 Del Mar Ave, Berkeley, CA compare to other homes in Berkeley 94708?

Among the 4,611 homes in Berkeley 94708, it is worth more than 30% of them ($1,347,400 against a typical $1,519,705), its price per square foot is higher than 51% of them ($810 against a typical $805), it is bigger than 34% of them (1,664 ft² against a typical 1,932 ft²), its lot is bigger than 82% of them (0.2 ac against a typical 0.14 ac) and it is newer than 76% of them (1954 against a typical 1941). Measured against all of Alameda County, it is worth more than 68% 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 Del Mar Ave, Berkeley, CA?

The 2025 property tax bill for 21 Del Mar Ave, Berkeley, CA was $6,454. The county assessed it at $114,624.

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