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Single Family ResidenceResidential
$2,874,478$764 / 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 $1,068,000 on Nov 17, 2010

1821 ASHTON AVE

BURLINGAME, CA 94010
4
Beds
4.5
Baths
3,760 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1956
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
10
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

$2.9M
$2.6M low$3.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,068,000 · Nov 17, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$21,107 (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.$1,824,525 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,176,115
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$648,410
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,788,751
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$4,528,350

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.0.28
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(17)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(6)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Franklin Elementary SchoolA+
Elementary · Grades KG–5 · 0.1 mi
M
Burlingame Intermediate SchoolA+
Middle · Grades 6–8 · 0.3 mi
H
Burlingame High SchoolA+
High · Grades 9–12 · 2.5 mi

District: Burlingame Elementary School District

Neighborhood · ZIP 94010These 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.83
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 100.594

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.2%
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.41,614
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,432 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$190,697
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$259,055
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.30 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

1821 Ashton 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 more than 85% of homes in San Mateo County
  • Costs less per square foot than 98% of homes in Burlingame 94010
  • Bigger than 96% of homes in Mills Estates
  • Has a bigger lot than 78% of homes in San Mateo County
  • Older than 86% of homes in Mills Estates

What homes are worth in Burlingame 94010

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

This home
$940K$10M

This home is worth more than 34% of homes in Burlingame 94010.

How it measures up in Burlingame 94010

The dot is this home. The mark in the middle is the typical home in Burlingame 94010.

Estimated value$2,874,478
CheaperTypical $3,437,783Pricier

Pricier than 34% of homes nearby

Price per ft²$764
CheaperTypical $1440Pricier

Pricier than 2% of homes nearby

Living area3,760 ft²
SmallerTypical 2,520 ft²Bigger

Bigger than 79% of homes nearby

Lot size0.28 ac
SmallerTypical 0.22 acBigger

Bigger than 56% of homes nearby

Year built1956
OlderTypical 1953Newer

Newer than 57% of homes nearby

How 1821 Ashton Ave ranks against every home in each area.
MeasureThis homeMills EstatesBurlingame 94010San Mateo County
Estimated valuepricier than$2,874,47856% of homes34% of homes85% of homes
Price per ft²pricier than$76413% of homes2% of homes26% of homes
Living areabigger than3,760 ft²96% of homes79% of homes94% of homes
Lot sizebigger than0.28 ac68% of homes56% of homes78% of homes
Year builtnewer than195614% of homes57% of homes46% of homes

About 1821 Ashton Ave

How much is 1821 Ashton Ave, Burlingame, CA worth?

The TopHap Estimate for 1821 Ashton Ave, Burlingame, CA is $2,874,478 as of Aug 30, 2026. The likely range is $2,627,014 to $3,121,941. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1821 Ashton Ave, Burlingame, CA last sell?

1821 Ashton Ave, Burlingame, CA last sold on Nov 17, 2010 for $1,068,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 1821 Ashton Ave, Burlingame, CA?

1821 Ashton Ave, Burlingame, CA has 4 bedrooms, 4.5 bathrooms, 3,760 square feet of living space and a 0.28-acre lot.

When was 1821 Ashton Ave, Burlingame, CA built?

1821 Ashton Ave, Burlingame, CA was built in 1956, making it 70 years old. The building has 1 story.

What schools serve 1821 Ashton Ave, Burlingame, CA?

1821 Ashton Ave, Burlingame, CA is assigned to Franklin Elementary School (elementary), rated A+; Burlingame Intermediate School (middle), rated A+; Burlingame High School (high), rated A+. All sit in Burlingame Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1821 Ashton Ave, Burlingame, CA compare to other homes in Burlingame 94010?

Among the 12,199 homes in Burlingame 94010, it is worth more than 34% of them ($2,874,478 against a typical $3,437,783), its price per square foot is higher than 2% of them ($764 against a typical $1440), it is bigger than 79% of them (3,760 ft² against a typical 2,520 ft²), its lot is bigger than 56% of them (0.28 ac against a typical 0.22 ac) and it is newer than 57% of them (1956 against a typical 1953). Measured against all of San Mateo County, it is worth more than 85% 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 1821 Ashton Ave, Burlingame, CA?

The 2025 property tax bill for 1821 Ashton Ave, Burlingame, CA was $21,107. The county assessed it at $1,824,525.

More homes on Ashton Ave

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