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Single Family ResidenceResidential
$1,224,489$1,170 / 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 Aug 30, 2026
Last sold for $1,100,000 on Mar 7, 2023

603 WELLESLEY AVE

KENSINGTON, CA 94708
1
Beds
1
Baths
1,047 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1936
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

$1.2M
$1.1M low$1.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,100,000 · Mar 7, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$16,497 (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.$1,167,328 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,029,371
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$137,957
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,144,440

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.32
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
60
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
16
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
48
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
36
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

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.Bungalow
CountyCONTRA COSTA
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.1960
Lot (acres)The size of the land the home sits on, from county records.0.14
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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.Garage, Detached
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.Bayou

Transaction History(8)

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
Kensington Elementary SchoolA+
Elementary · Grades KG–6 · 0.4 mi
H
El Cerrito High SchoolB+
High · Grades 9–12 · 0.8 mi
M
Fred T. Korematsu Middle SchoolC+
Middle · Grades 7–8 · 1.7 mi

District: West Contra Costa 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

603 Wellesley 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 83% of homes in Kensington
  • Among the highest price per square foot in Contra Costa County
  • Smaller than 96% of homes in Kensington
  • Older than 97% of homes in Contra Costa County

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
$940K$3.1M

This home is worth more than 17% 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$1,224,489
CheaperTypical $1,508,750Pricier

Pricier than 17% of homes nearby

Price per ft²$1170
CheaperTypical $803Pricier

Pricier than 96% of homes nearby

Living area1,047 ft²
SmallerTypical 1,930 ft²Bigger

Bigger than 4% of homes nearby

Lot size0.14 ac
SmallerTypical 0.14 acBigger

Bigger than 51% of homes nearby

Year built1936
OlderTypical 1941Newer

Newer than 33% of homes nearby

How 603 Wellesley Ave ranks against every home in each area.
MeasureThis homeKensingtonBerkeley 94708Contra Costa County
Estimated valuepricier than$1,224,48917% of homes17% of homes75% of homes
Price per ft²pricier than$117096% of homes96% of homesalmost all homes
Living areabigger than1,047 ft²4% of homes4% of homes12% of homes
Lot sizebigger than0.14 ac57% of homes51% of homes43% of homes
Year builtnewer than193624% of homes33% of homes3% of homes

About 603 Wellesley Ave

How much is 603 Wellesley Ave, Kensington, CA worth?

The TopHap Estimate for 603 Wellesley Ave, Kensington, CA is $1,224,489 as of Aug 30, 2026. The likely range is $1,120,280 to $1,328,698. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 603 Wellesley Ave, Kensington, CA last sell?

603 Wellesley Ave, Kensington, CA last sold on Mar 7, 2023 for $1,100,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 603 Wellesley Ave, Kensington, CA?

603 Wellesley Ave, Kensington, CA has 1 bedrooms, 1 bathrooms, 1,047 square feet of living space and a 0.14-acre lot.

When was 603 Wellesley Ave, Kensington, CA built?

603 Wellesley Ave, Kensington, CA was built in 1936, making it 90 years old. It is a bungalow home. The building has 1 story.

What schools serve 603 Wellesley Ave, Kensington, CA?

603 Wellesley Ave, Kensington, CA is assigned to Kensington Elementary School (elementary), rated A+; El Cerrito High School (high), rated B+; Fred T. Korematsu Middle School (middle), rated C+. All sit in West Contra Costa Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 603 Wellesley Ave, Kensington, CA compare to other homes in Berkeley 94708?

Among the 4,608 homes in Berkeley 94708, it is worth more than 17% of them ($1,224,489 against a typical $1,508,750), its price per square foot is higher than 96% of them ($1170 against a typical $803), it is bigger than 4% of them (1,047 ft² against a typical 1,930 ft²), its lot is bigger than 51% of them (0.14 ac against a typical 0.14 ac) and it is newer than 33% of them (1936 against a typical 1941). Measured against all of Contra Costa County, it is worth more than 75% 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 603 Wellesley Ave, Kensington, CA?

The 2025 property tax bill for 603 Wellesley Ave, Kensington, CA was $16,497. The county assessed it at $1,167,328.

More homes on Wellesley Ave

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Assigned schools

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