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Single Family ResidenceResidential
$1,958,471$1,113 / 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 $2,121,000 on Aug 24, 2021

648 MATSONIA DR

FOSTER CITY, CA 94404
4
Beds
2
Baths
1,760 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1964
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
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
$1.8M 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.$2,121,000 · Aug 24, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$23,238 (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.$1,990,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,219,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$770,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,050,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,645,110

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.Contemporary
CountySAN MATEO
Lot (acres)The size of the land the home sits on, from county records.0.12
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Roll Tar & Gravel
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(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
Brewer Island Elementary SchoolA
Elementary · Grades KG–5 · 0.3 mi
M
Bowditch Middle SchoolA
Middle · Grades 6–8 · 1.0 mi
H
San Mateo High SchoolA
High · Grades 9–12 · 3.6 mi

District: San Mateo-Foster City Elementary School District

Neighborhood · ZIP 94404These 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.78
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.469

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.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.3%
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.34,562
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,017 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$165,214
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$197,174
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.18 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

648 Matsonia Dr 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 69% of homes in San Mateo 94404
  • Costs more per square foot than 91% of homes in San Mateo 94404
  • Has a smaller lot than 80% of homes in Treasure Isle
  • Older than 97% of homes in San Mateo 94404

What homes are worth in San Mateo 94404

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

This home
$582K$2.8M

This home is worth more than 69% of homes in San Mateo 94404.

How it measures up in San Mateo 94404

The dot is this home. The mark in the middle is the typical home in San Mateo 94404.

Estimated value$1,958,471
CheaperTypical $1,571,954Pricier

Pricier than 69% of homes nearby

Price per ft²$1113
CheaperTypical $914Pricier

Pricier than 91% of homes nearby

Living area1,760 ft²
SmallerTypical 1,670 ft²Bigger

Bigger than 55% of homes nearby

Lot size0.12 ac
SmallerTypical 0.14 acBigger

Bigger than 36% of homes nearby

Year built1964
OlderTypical 1974Newer

Newer than 3% of homes nearby

How 648 Matsonia Dr ranks against every home in each area.
MeasureThis homeTreasure IsleSan Mateo 94404San Mateo County
Estimated valuepricier than$1,958,47166% of homes69% of homes66% of homes
Price per ft²pricier than$111385% of homes91% of homes64% of homes
Living areabigger than1,760 ft²55% of homes55% of homes57% of homes
Lot sizebigger than0.12 ac20% of homes36% of homes36% of homes
Year builtnewer than196425% of homes3% of homes60% of homes

About 648 Matsonia Dr

How much is 648 Matsonia Dr, Foster City, CA worth?

The TopHap Estimate for 648 Matsonia Dr, Foster City, CA is $1,958,471 as of Aug 30, 2026. The likely range is $1,838,558 to $2,078,384. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 648 Matsonia Dr, Foster City, CA last sell?

648 Matsonia Dr, Foster City, CA last sold on Aug 24, 2021 for $2,121,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 648 Matsonia Dr, Foster City, CA?

648 Matsonia Dr, Foster City, CA has 4 bedrooms, 2 bathrooms, 1,760 square feet of living space and a 0.12-acre lot.

When was 648 Matsonia Dr, Foster City, CA built?

648 Matsonia Dr, Foster City, CA was built in 1964, making it 62 years old. It is a contemporary home. The building has 1 story.

What schools serve 648 Matsonia Dr, Foster City, CA?

648 Matsonia Dr, Foster City, CA is assigned to Brewer Island Elementary School (elementary), rated A; Bowditch Middle School (middle), rated A; San Mateo High School (high), rated A. All sit in San Mateo-Foster City Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 648 Matsonia Dr, Foster City, CA compare to other homes in San Mateo 94404?

Among the 10,362 homes in San Mateo 94404, it is worth more than 69% of them ($1,958,471 against a typical $1,571,954), its price per square foot is higher than 91% of them ($1113 against a typical $914), it is bigger than 55% of them (1,760 ft² against a typical 1,670 ft²), its lot is bigger than 36% of them (0.12 ac against a typical 0.14 ac) and it is newer than 3% of them (1964 against a typical 1974). 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 648 Matsonia Dr, Foster City, CA?

The 2025 property tax bill for 648 Matsonia Dr, Foster City, CA was $23,238. The county assessed it at $1,990,000.

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