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Agricultural/Rural (General)Agriculture / Farming
$2,316,315$867 / 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 97How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $265,500 on Nov 26, 1996

4100 WILLOWSIDE RANCH RD

SAN GREGORIO, CA 94074
4
Beds
6 / 4
Baths
2,671 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.
143.69 ac
Lot SizeThe size of the land the home sits on, from county records.
1999
Year BuiltThe year the home was originally built, according to county records.
9
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

$2.3M
$2.2M low$2.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$265,500 · Nov 26, 1996

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,876 (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.$994,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$288,599
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$705,701
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$967,375

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Agricultural/Rural (General)
CountySAN MATEO
HeatingThe type of heating system in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(7)

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
Pescadero Elementary and Middle SchoolA-
Middle · Grades KG–8 · 3.4 mi
H
Pescadero High SchoolB-
High · Grades 9–12 · 4.1 mi
E
La Honda Elementary SchoolA
Elementary · Grades KG–5 · 5.8 mi

District: La Honda-Pescadero Unified School District

Neighborhood · ZIP 94074These 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.169
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.487

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.74%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.3%
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.261
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.16 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$149,545
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$172,145
Average tempThe average temperature here across a full year.56°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

4100 Willowside Ranch 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 75% of homes in San Mateo County
  • Bigger than 85% of homes in San Mateo County
  • Among the largest lots in San Mateo County
  • Newer than 93% of homes in San Mateo County

What homes are worth in San Mateo County

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

This home
$698K$3.2M

This home is worth more than 79% of homes in San Mateo County.

How it measures up in San Mateo County

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

Estimated value$2,316,315
CheaperTypical $1,460,855Pricier

Pricier than 75% of homes nearby

Price per ft²$867
CheaperTypical $965Pricier

Pricier than 39% of homes nearby

Living area2,671 ft²
SmallerTypical 1,620 ft²Bigger

Bigger than 85% of homes nearby

Lot size143.69 ac
SmallerTypical 0.14 acBigger

Bigger than almost all homes nearby

Year built1999
OlderTypical 1959Newer

Newer than 93% of homes nearby

How 4100 Willowside Ranch Rd ranks against every home in each area.
MeasureThis homeSan Mateo County
Estimated valuepricier than$2,316,31575% of homes
Price per ft²pricier than$86739% of homes
Living areabigger than2,671 ft²85% of homes
Lot sizebigger than143.69 acalmost all homes
Year builtnewer than199993% of homes

About 4100 Willowside Ranch Rd

How much is 4100 Willowside Ranch Rd, San Gregorio, CA worth?

The TopHap Estimate for 4100 Willowside Ranch Rd, San Gregorio, CA is $2,316,315 as of Jul 14, 2026. The likely range is $2,239,576 to $2,393,054. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4100 Willowside Ranch Rd, San Gregorio, CA last sell?

4100 Willowside Ranch Rd, San Gregorio, CA last sold on Nov 26, 1996 for $265,500, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 4100 Willowside Ranch Rd, San Gregorio, CA?

4100 Willowside Ranch Rd, San Gregorio, CA has 4 bedrooms, 6 bathrooms and 2,671 square feet of living space.

When was 4100 Willowside Ranch Rd, San Gregorio, CA built?

4100 Willowside Ranch Rd, San Gregorio, CA was built in 1999, making it 27 years old.

What schools serve 4100 Willowside Ranch Rd, San Gregorio, CA?

4100 Willowside Ranch Rd, San Gregorio, CA is assigned to Pescadero Elementary and Middle School (middle), rated A-; Pescadero High School (high), rated B-; La Honda Elementary School (elementary), rated A. All sit in La Honda-Pescadero Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4100 Willowside Ranch Rd, San Gregorio, CA compare to other homes in San Mateo County?

Among the 200,121 homes in San Mateo County, it is worth more than 75% of them ($2,316,315 against a typical $1,460,855), its price per square foot is higher than 39% of them ($867 against a typical $965), it is bigger than 85% of them (2,671 ft² against a typical 1,620 ft²), its lot is bigger than almost all of them (143.69 ac against a typical 0.14 ac) and it is newer than 93% of them (1999 against a typical 1959). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 4100 Willowside Ranch Rd, San Gregorio, CA?

The 2025 property tax bill for 4100 Willowside Ranch Rd, San Gregorio, CA was $10,876. The county assessed it at $994,300.

Closest homes

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Assigned schools

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