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Single Family ResidenceResidential
$1,935,487$1,373 / 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

421 BURLINGAME AVE

BURLINGAME, CA 94010
3
Beds
1
Baths
1,410 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1948
Year BuiltThe year the home was originally built, according to county records.
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

$1.9M
$1.8M low$2.1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,369 (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.$158,114 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$40,282
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$117,832
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$155,015
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,753,200

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.1 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.0.2 percent flood zone

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
CountySAN MATEO
Lot (acres)The size of the land the home sits on, from county records.0.11
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Washington Elementary SchoolB
Elementary · Grades KG–5 · 0.3 mi
H
Burlingame High SchoolA+
High · Grades 9–12 · 0.5 mi
M
Burlingame Intermediate SchoolA+
Middle · Grades 6–8 · 2.6 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

421 Burlingame 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 88% of homes in Burlingame 94010
  • Costs more per square foot than 82% of homes in San Mateo County
  • Smaller than 86% of homes in Burlingame 94010
  • Has a smaller lot than 97% of homes in Burlingame 94010
  • Newer than 81% of homes in Lyon Hoag

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
$898K$10M

This home is worth more than 12% 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$1,935,487
CheaperTypical $3,421,902Pricier

Pricier than 12% of homes nearby

Price per ft²$1373
CheaperTypical $1440Pricier

Pricier than 41% of homes nearby

Living area1,410 ft²
SmallerTypical 2,510 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.11 ac
SmallerTypical 0.21 acBigger

Bigger than 3% of homes nearby

Year built1948
OlderTypical 1953Newer

Newer than 42% of homes nearby

How 421 Burlingame Ave ranks against every home in each area.
MeasureThis homeLyon HoagBurlingame 94010San Mateo County
Estimated valuepricier than$1,935,48729% of homes12% of homes65% of homes
Price per ft²pricier than$137349% of homes41% of homes82% of homes
Living areabigger than1,410 ft²31% of homes14% of homes38% of homes
Lot sizebigger than0.11 ac6% of homes3% of homes22% of homes
Year builtnewer than194881% of homes42% of homes23% of homes

About 421 Burlingame Ave

How much is 421 Burlingame Ave, Burlingame, CA worth?

The TopHap Estimate for 421 Burlingame Ave, Burlingame, CA is $1,935,487 as of Aug 30, 2026. The likely range is $1,758,932 to $2,112,041. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Burlingame Ave, Burlingame, CA last sell?

421 Burlingame Ave, Burlingame, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 421 Burlingame Ave, Burlingame, CA?

421 Burlingame Ave, Burlingame, CA has 3 bedrooms, 1 bathrooms, 1,410 square feet of living space and a 0.11-acre lot.

When was 421 Burlingame Ave, Burlingame, CA built?

421 Burlingame Ave, Burlingame, CA was built in 1948, making it 78 years old.

What schools serve 421 Burlingame Ave, Burlingame, CA?

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

How does 421 Burlingame Ave, Burlingame, CA compare to other homes in Burlingame 94010?

Among the 12,199 homes in Burlingame 94010, it is worth more than 12% of them ($1,935,487 against a typical $3,421,902), its price per square foot is higher than 41% of them ($1373 against a typical $1440), it is bigger than 14% of them (1,410 ft² against a typical 2,510 ft²), its lot is bigger than 3% of them (0.11 ac against a typical 0.21 ac) and it is newer than 42% of them (1948 against a typical 1953). Measured against all of San Mateo County, it is worth more than 65% 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 421 Burlingame Ave, Burlingame, CA?

The 2025 property tax bill for 421 Burlingame Ave, Burlingame, CA was $2,369. The county assessed it at $158,114.

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