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Single Family ResidenceResidential
$6,853,057$1,602 / 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 89How 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

425 RANELAGH RD

HILLSBOROUGH, CA 94010
4
Beds
5
Baths
4,279 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
11
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$6.9M
$6.1M low$7.6M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,986 (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.$3,437,934 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,202,289
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,235,645
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$357,711
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$4,822,740

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.0.34
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(1)

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
South Hillsborough SchoolA
Elementary · Grades KG–5 · 0.4 mi
H
San Mateo High SchoolA
High · Grades 9–12 · 0.8 mi
M
Crocker Middle SchoolA-
Middle · Grades 6–8 · 1.5 mi

District: Hillsborough City 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

425 Ranelagh Rd 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 97% of homes in San Mateo County
  • Costs more per square foot than 91% of homes in San Mateo County
  • Bigger than 96% of homes in San Mateo County
  • Has a smaller lot than 90% of homes in Hillsborough Heights
  • Older than 93% of homes in San Mateo County

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
$946K$10M

This home is worth more than 90% 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$6,853,057
CheaperTypical $3,437,668Pricier

Pricier than 90% of homes nearby

Price per ft²$1602
CheaperTypical $1445Pricier

Pricier than 70% of homes nearby

Living area4,279 ft²
SmallerTypical 2,512 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.34 ac
SmallerTypical 0.21 acBigger

Bigger than 60% of homes nearby

Year built1930
OlderTypical 1953Newer

Newer than 26% of homes nearby

How 425 Ranelagh Rd ranks against every home in each area.
MeasureThis homeHillsborough HeightsBurlingame 94010San Mateo County
Estimated valuepricier than$6,853,05751% of homes90% of homes97% of homes
Price per ft²pricier than$160247% of homes70% of homes91% of homes
Living areabigger than4,279 ft²57% of homes85% of homes96% of homes
Lot sizebigger than0.34 ac10% of homes60% of homes80% of homes
Year builtnewer than193037% of homes26% of homes7% of homes

About 425 Ranelagh Rd

How much is 425 Ranelagh Rd, Hillsborough, CA worth?

The TopHap Estimate for 425 Ranelagh Rd, Hillsborough, CA is $6,853,057 as of Sep 24, 2026. The likely range is $6,091,752 to $7,614,362. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 425 Ranelagh Rd, Hillsborough, CA last sell?

425 Ranelagh Rd, Hillsborough, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 425 Ranelagh Rd, Hillsborough, CA?

425 Ranelagh Rd, Hillsborough, CA has 4 bedrooms, 5 bathrooms, 4,279 square feet of living space and a 0.34-acre lot.

When was 425 Ranelagh Rd, Hillsborough, CA built?

425 Ranelagh Rd, Hillsborough, CA was built in 1930, making it 96 years old. The building has 2 stories.

What schools serve 425 Ranelagh Rd, Hillsborough, CA?

425 Ranelagh Rd, Hillsborough, CA is assigned to South Hillsborough School (elementary), rated A; San Mateo High School (high), rated A; Crocker Middle School (middle), rated A-. All sit in Hillsborough City Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 425 Ranelagh Rd, Hillsborough, CA compare to other homes in Burlingame 94010?

Among the 12,200 homes in Burlingame 94010, it is worth more than 90% of them ($6,853,057 against a typical $3,437,668), its price per square foot is higher than 70% of them ($1602 against a typical $1445), it is bigger than 85% of them (4,279 ft² against a typical 2,512 ft²), its lot is bigger than 60% of them (0.34 ac against a typical 0.21 ac) and it is newer than 26% of them (1930 against a typical 1953). Measured against all of San Mateo County, it is worth more than 97% 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 425 Ranelagh Rd, Hillsborough, CA?

The 2025 property tax bill for 425 Ranelagh Rd, Hillsborough, CA was $9,986. The county assessed it at $3,437,934.

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