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Single Family ResidenceResidential
$3,002,343$1,390 / 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 89How 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 $1,180,000 on May 17, 2005

1642 PROSPECT ST

BELMONT, CA 94002
3
Beds
3
Baths
2,160 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.
0.32 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$3M
$2.7M low$3.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,180,000 · May 17, 2005

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$20,720 (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.$1,677,704 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$838,852
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$838,852
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,644,808
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,940,130

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySAN MATEO
Lot (acres)The size of the land the home sits on, from county records.0.32
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(13)

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.

H
Carlmont High SchoolA+
High · Grades 9–12 · 1.0 mi
E
Central Elementary SchoolA
Elementary · Grades KG–5 · 1.1 mi
M
Ralston Middle SchoolA+
Middle · Grades 6–8 · 2.2 mi

District: Belmont-Redwood Shores Elementary School District

Neighborhood · ZIP 94002These 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.91
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.598

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.27,900
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,367 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$172,695
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$212,627
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.25 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.66%

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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

1642 Prospect St 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 91% of homes in Belmont 94002
  • Costs more per square foot than 83% of homes in San Mateo County
  • Bigger than 73% of homes in San Mateo County
  • Has a bigger lot than 90% of homes in Downtown Belmont

What homes are worth in Belmont 94002

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

This home
$745K$3.6M

This home is worth more than 91% of homes in Belmont 94002.

How it measures up in Belmont 94002

The dot is this home. The mark in the middle is the typical home in Belmont 94002.

Estimated value$3,002,343
CheaperTypical $2,151,664Pricier

Pricier than 91% of homes nearby

Price per ft²$1390
CheaperTypical $1193Pricier

Pricier than 80% of homes nearby

Living area2,160 ft²
SmallerTypical 1,810 ft²Bigger

Bigger than 68% of homes nearby

Lot size0.32 ac
SmallerTypical 0.16 acBigger

Bigger than 85% of homes nearby

Year built1955
OlderTypical 1960Newer

Newer than 38% of homes nearby

How 1642 Prospect St ranks against every home in each area.
MeasureThis homeDowntown BelmontBelmont 94002San Mateo County
Estimated valuepricier than$3,002,34385% of homes91% of homes86% of homes
Price per ft²pricier than$139074% of homes80% of homes83% of homes
Living areabigger than2,160 ft²69% of homes68% of homes73% of homes
Lot sizebigger than0.32 ac90% of homes85% of homes79% of homes
Year builtnewer than195556% of homes38% of homes43% of homes

About 1642 Prospect St

How much is 1642 Prospect St, Belmont, CA worth?

The TopHap Estimate for 1642 Prospect St, Belmont, CA is $3,002,343 as of Aug 30, 2026. The likely range is $2,686,062 to $3,318,623. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1642 Prospect St, Belmont, CA last sell?

1642 Prospect St, Belmont, CA last sold on May 17, 2005 for $1,180,000, according to the county's recorded deed.

How big is 1642 Prospect St, Belmont, CA?

1642 Prospect St, Belmont, CA has 3 bedrooms, 3 bathrooms, 2,160 square feet of living space and a 0.32-acre lot.

When was 1642 Prospect St, Belmont, CA built?

1642 Prospect St, Belmont, CA was built in 1955, making it 71 years old. The building has 1 story.

What schools serve 1642 Prospect St, Belmont, CA?

1642 Prospect St, Belmont, CA is assigned to Carlmont High School (high), rated A+; Central Elementary School (elementary), rated A; Ralston Middle School (middle), rated A+. All sit in Belmont-Redwood Shores Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1642 Prospect St, Belmont, CA compare to other homes in Belmont 94002?

Among the 7,604 homes in Belmont 94002, it is worth more than 91% of them ($3,002,343 against a typical $2,151,664), its price per square foot is higher than 80% of them ($1390 against a typical $1193), it is bigger than 68% of them (2,160 ft² against a typical 1,810 ft²), its lot is bigger than 85% of them (0.32 ac against a typical 0.16 ac) and it is newer than 38% of them (1955 against a typical 1960). Measured against all of San Mateo County, it is worth more than 86% 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 1642 Prospect St, Belmont, CA?

The 2025 property tax bill for 1642 Prospect St, Belmont, CA was $20,720. The county assessed it at $1,677,704.

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