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Multi-Family Dwellings (Generic, Any Combination)Residential
Last sold for $5,316,500 on Jan 3, 2019

735 FATHOM DR

SAN MATEO, CA 94404
30
Beds
2
Baths
23,370 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.
0.53 ac
Lot SizeThe size of the land the home sits on, from county records.
1976
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
72
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
24
ParkingThe number of parking spaces on the property, including the garage.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$5,316,500 · Jan 3, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$152,766 (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.$11,378,289 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$7,395,888
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$3,982,401
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$11,155,186

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.36 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 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.Multi-Family Dwellings (Generic, Any Combination)
CountySAN MATEO
Lot (acres)The size of the land the home sits on, from county records.0.53
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
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Elevator

Transaction History(24)

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.

M
Bayside AcademyB-
Middle · Grades KG–8 · 0.5 mi
E
LEAD Elementary SchoolD
Elementary · Grades KG–5 · 0.9 mi
H
Aragon High SchoolA+
High · Grades 9–12 · 2.5 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

735 Fathom 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.

  • Among the largest homes in Mariner's Isle
  • Has a bigger lot than 84% of homes in San Mateo County
  • Newer than 77% of homes in San Mateo County

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.

Living area23,370 ft²
SmallerTypical 1,670 ft²Bigger

Bigger than almost all homes nearby

Lot size0.53 ac
SmallerTypical 0.14 acBigger

Bigger than 73% of homes nearby

Year built1976
OlderTypical 1974Newer

Newer than 61% of homes nearby

How 735 Fathom Dr ranks against every home in each area.
MeasureThis homeMariner's IsleSan Mateo 94404San Mateo County
Living areabigger than23,370 ft²almost all homesalmost all homesalmost all homes
Lot sizebigger than0.53 ac40% of homes73% of homes84% of homes
Year builtnewer than197636% of homes61% of homes77% of homes

About 735 Fathom Dr

When did 735 Fathom Dr, San Mateo, CA last sell?

735 Fathom Dr, San Mateo, CA last sold on Jan 3, 2019 for $5,316,500, according to the county's recorded deed. TopHap holds 14 recorded sales for this parcel.

How big is 735 Fathom Dr, San Mateo, CA?

735 Fathom Dr, San Mateo, CA has 30 bedrooms, 2 bathrooms, 23,370 square feet of living space and a 0.53-acre lot.

When was 735 Fathom Dr, San Mateo, CA built?

735 Fathom Dr, San Mateo, CA was built in 1976, making it 50 years old. The building has 3 stories.

What schools serve 735 Fathom Dr, San Mateo, CA?

735 Fathom Dr, San Mateo, CA is assigned to Bayside Academy (middle), rated B-; LEAD Elementary School (elementary), rated D; Aragon 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 735 Fathom Dr, San Mateo, CA compare to other homes in San Mateo 94404?

Among the 10,362 homes in San Mateo 94404, it is bigger than almost all of them (23,370 ft² against a typical 1,670 ft²), its lot is bigger than 73% of them (0.53 ac against a typical 0.14 ac) and it is newer than 61% of them (1976 against a typical 1974). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 735 Fathom Dr, San Mateo, CA?

The 2025 property tax bill for 735 Fathom Dr, San Mateo, CA was $152,766. The county assessed it at $11,378,289.

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