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Single Family ResidenceResidential
$7,576,160$2,202 / 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 Sep 24, 2026

227 CATALPA DR

ATHERTON, CA 94027
5
Beds
3
Baths
3,440 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.
0.94 ac
Lot SizeThe size of the land the home sits on, from county records.
1959
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

$7.6M
$7.2M low$8M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$25,522 (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.$2,109,496 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,339,893
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$769,603
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,068,134
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$5,632,740

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.Ranch
CountySAN MATEO
Lot (acres)The size of the land the home sits on, from county records.0.94
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
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.Yes

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
Encinal Elementary SchoolA+
Elementary · Grades KG–5 · 0.6 mi
H
Menlo-Atherton High SchoolA
High · Grades 9–12 · 0.9 mi
M
Hillview Middle SchoolA+
Middle · Grades 6–8 · 2.4 mi

District: Menlo Park City Elementary School District

Neighborhood · ZIP 94027These 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.98
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.511

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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.7,126
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,411 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$294,375
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$482,221
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.20 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

227 Catalpa 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 98% of homes in San Mateo County
  • Costs more per square foot than 98% of homes in San Mateo County
  • Bigger than 92% of homes in San Mateo County
  • Has a bigger lot than 87% of homes in San Mateo County
  • Newer than 68% of homes in Lindenwood

What homes are worth in Atherton 94027

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

This home
$2.5M$10M

This home is worth more than 36% of homes in Atherton 94027.

How it measures up in Atherton 94027

The dot is this home. The mark in the middle is the typical home in Atherton 94027.

Estimated value$7,576,160
CheaperTypical $8,987,645Pricier

Pricier than 36% of homes nearby

Price per ft²$2202
CheaperTypical $1982Pricier

Pricier than 63% of homes nearby

Living area3,440 ft²
SmallerTypical 3,916 ft²Bigger

Bigger than 40% of homes nearby

Lot size0.94 ac
SmallerTypical 1 acBigger

Bigger than 42% of homes nearby

Year built1959
OlderTypical 1958Newer

Newer than 52% of homes nearby

How 227 Catalpa Dr ranks against every home in each area.
MeasureThis homeLindenwoodAtherton 94027San Mateo County
Estimated valuepricier than$7,576,16030% of homes36% of homes98% of homes
Price per ft²pricier than$220258% of homes63% of homes98% of homes
Living areabigger than3,440 ft²39% of homes40% of homes92% of homes
Lot sizebigger than0.94 ac63% of homes42% of homes87% of homes
Year builtnewer than195968% of homes52% of homes52% of homes

About 227 Catalpa Dr

How much is 227 Catalpa Dr, Atherton, CA worth?

The TopHap Estimate for 227 Catalpa Dr, Atherton, CA is $7,576,160 as of Sep 24, 2026. The likely range is $7,154,045 to $7,998,275. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 227 Catalpa Dr, Atherton, CA last sell?

227 Catalpa Dr, Atherton, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 227 Catalpa Dr, Atherton, CA?

227 Catalpa Dr, Atherton, CA has 5 bedrooms, 3 bathrooms, 3,440 square feet of living space and a 0.94-acre lot.

When was 227 Catalpa Dr, Atherton, CA built?

227 Catalpa Dr, Atherton, CA was built in 1959, making it 67 years old. It is a ranch home. The building has 1 story.

What schools serve 227 Catalpa Dr, Atherton, CA?

227 Catalpa Dr, Atherton, CA is assigned to Encinal Elementary School (elementary), rated A+; Menlo-Atherton High School (high), rated A; Hillview Middle School (middle), rated A+. All sit in Menlo Park City Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 227 Catalpa Dr, Atherton, CA compare to other homes in Atherton 94027?

Among the 2,583 homes in Atherton 94027, it is worth more than 36% of them ($7,576,160 against a typical $8,987,645), its price per square foot is higher than 63% of them ($2202 against a typical $1982), it is bigger than 40% of them (3,440 ft² against a typical 3,916 ft²), its lot is bigger than 42% of them (0.94 ac against a typical 1 ac) and it is newer than 52% of them (1959 against a typical 1958). Measured against all of San Mateo County, it is worth more than 98% 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 227 Catalpa Dr, Atherton, CA?

The 2025 property tax bill for 227 Catalpa Dr, Atherton, CA was $25,522. The county assessed it at $2,109,496.

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