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Single Family ResidenceResidential
$1,979,336$1,424 / 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 94How 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 $1,680,000 on May 15, 2017

1231 ALDEN CT

BELMONT, CA 94002
2
Beds
2
Baths
1,390 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1947
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$2M
$1.9M 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.$1,680,000 · May 15, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$23,705 (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.$1,988,772 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,392,142
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$596,630
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,949,778
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,795,770

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.0.15
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Central Elementary SchoolA
Elementary · Grades KG–5 · 0.8 mi
H
Carlmont High SchoolA+
High · Grades 9–12 · 0.8 mi
M
Ralston Middle SchoolA+
Middle · Grades 6–8 · 1.1 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

1231 Alden Ct 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 66% of homes in San Mateo County
  • Costs more per square foot than 89% of homes in Central
  • Smaller than 77% of homes in Belmont 94002
  • Older than 87% of homes in Belmont 94002

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
$671K$3.5M

This home is worth more than 39% 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$1,979,336
CheaperTypical $2,144,033Pricier

Pricier than 39% of homes nearby

Price per ft²$1424
CheaperTypical $1193Pricier

Pricier than 84% of homes nearby

Living area1,390 ft²
SmallerTypical 1,820 ft²Bigger

Bigger than 23% of homes nearby

Lot size0.15 ac
SmallerTypical 0.16 acBigger

Bigger than 48% of homes nearby

Year built1947
OlderTypical 1959Newer

Newer than 13% of homes nearby

How 1231 Alden Ct ranks against every home in each area.
MeasureThis homeCentralBelmont 94002San Mateo County
Estimated valuepricier than$1,979,33647% of homes39% of homes66% of homes
Price per ft²pricier than$142489% of homes84% of homes85% of homes
Living areabigger than1,390 ft²29% of homes23% of homes37% of homes
Lot sizebigger than0.15 ac43% of homes48% of homes57% of homes
Year builtnewer than194723% of homes13% of homes20% of homes

About 1231 Alden Ct

How much is 1231 Alden Ct, Belmont, CA worth?

The TopHap Estimate for 1231 Alden Ct, Belmont, CA is $1,979,336 as of Aug 30, 2026. The likely range is $1,856,692 to $2,101,980. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1231 Alden Ct, Belmont, CA last sell?

1231 Alden Ct, Belmont, CA last sold on May 15, 2017 for $1,680,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 1231 Alden Ct, Belmont, CA?

1231 Alden Ct, Belmont, CA has 2 bedrooms, 2 bathrooms, 1,390 square feet of living space and a 0.15-acre lot.

When was 1231 Alden Ct, Belmont, CA built?

1231 Alden Ct, Belmont, CA was built in 1947, making it 79 years old. The building has 1 story.

What schools serve 1231 Alden Ct, Belmont, CA?

1231 Alden Ct, Belmont, CA is assigned to Central Elementary School (elementary), rated A; Carlmont High School (high), 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 1231 Alden Ct, Belmont, CA compare to other homes in Belmont 94002?

Among the 7,604 homes in Belmont 94002, it is worth more than 39% of them ($1,979,336 against a typical $2,144,033), its price per square foot is higher than 84% of them ($1424 against a typical $1193), it is bigger than 23% of them (1,390 ft² against a typical 1,820 ft²), its lot is bigger than 48% of them (0.15 ac against a typical 0.16 ac) and it is newer than 13% of them (1947 against a typical 1959). Measured against all of San Mateo County, it is worth more than 66% 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 1231 Alden Ct, Belmont, CA?

The 2025 property tax bill for 1231 Alden Ct, Belmont, CA was $23,705. The county assessed it at $1,988,772.

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