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Single Family ResidenceResidential
$895,295$542 / 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 96How 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
Last sold for $3,045,909 on Sep 25, 2018

3860 MOUNTAIN HOME RANCH RD

CALISTOGA, CA 94515
3
Beds
2.5
Baths
1,652 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.
4.86 ac
Lot SizeThe size of the land the home sits on, from county records.
2000
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
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

$895K
$856K low$935K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$3,045,909 · Sep 25, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,471 (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.$543,125 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$175,268
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$367,857
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$532,477

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.39
84
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
87
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
27
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.88 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySONOMA
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2001
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(9)

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
Calistoga Elementary SchoolB
Elementary · Grades KG–6 · 3.5 mi
M
Calistoga Junior/Senior High SchoolC
Middle · Grades 7–12 · 3.7 mi

District: Calistoga Joint Unified School District

Neighborhood · ZIP 94515These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.343

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.84%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.6,731
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.61 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,969
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$156,593
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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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

3860 Mountain Home 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 66% of homes in Sonoma County
  • Costs less per square foot than 82% of homes in Calistoga 94515
  • Has a bigger lot than 94% of homes in Sonoma County
  • Newer than 88% of homes in Calistoga 94515

What homes are worth in Calistoga 94515

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

This home
$479K$5.6M

This home is worth more than 38% of homes in Calistoga 94515.

How it measures up in Calistoga 94515

The dot is this home. The mark in the middle is the typical home in Calistoga 94515.

Estimated value$895,295
CheaperTypical $1,041,938Pricier

Pricier than 38% of homes nearby

Price per ft²$542
CheaperTypical $648Pricier

Pricier than 18% of homes nearby

Living area1,652 ft²
SmallerTypical 1,581 ft²Bigger

Bigger than 54% of homes nearby

Lot size4.86 ac
SmallerTypical 0.33 acBigger

Bigger than 78% of homes nearby

Year built2000
OlderTypical 1972Newer

Newer than 88% of homes nearby

How 3860 Mountain Home Ranch Rd ranks against every home in each area.
MeasureThis homeCalistoga 94515Sonoma County
Estimated valuepricier than$895,29538% of homes66% of homes
Price per ft²pricier than$54218% of homes65% of homes
Living areabigger than1,652 ft²54% of homes55% of homes
Lot sizebigger than4.86 ac78% of homes94% of homes
Year builtnewer than200088% of homes85% of homes

About 3860 Mountain Home Ranch Rd

How much is 3860 Mountain Home Ranch Rd, Calistoga, CA worth?

The TopHap Estimate for 3860 Mountain Home Ranch Rd, Calistoga, CA is $895,295 as of Sep 24, 2026. The likely range is $856,083 to $934,507. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3860 Mountain Home Ranch Rd, Calistoga, CA last sell?

3860 Mountain Home Ranch Rd, Calistoga, CA last sold on Sep 25, 2018 for $3,045,909, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 3860 Mountain Home Ranch Rd, Calistoga, CA?

3860 Mountain Home Ranch Rd, Calistoga, CA has 3 bedrooms, 2.5 bathrooms and 1,652 square feet of living space.

When was 3860 Mountain Home Ranch Rd, Calistoga, CA built?

3860 Mountain Home Ranch Rd, Calistoga, CA was built in 2000, making it 26 years old. The building has 1 story.

What schools serve 3860 Mountain Home Ranch Rd, Calistoga, CA?

3860 Mountain Home Ranch Rd, Calistoga, CA is assigned to Calistoga Elementary School (elementary), rated B; Calistoga Junior/Senior High School (middle), rated C. All sit in Calistoga Joint Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3860 Mountain Home Ranch Rd, Calistoga, CA compare to other homes in Calistoga 94515?

Among the 1,962 homes in Calistoga 94515, it is worth more than 38% of them ($895,295 against a typical $1,041,938), its price per square foot is higher than 18% of them ($542 against a typical $648), it is bigger than 54% of them (1,652 ft² against a typical 1,581 ft²), its lot is bigger than 78% of them (4.86 ac against a typical 0.33 ac) and it is newer than 88% of them (2000 against a typical 1972). Measured against all of Sonoma 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 3860 Mountain Home Ranch Rd, Calistoga, CA?

The 2025 property tax bill for 3860 Mountain Home Ranch Rd, Calistoga, CA was $13,471. The county assessed it at $543,125.

More homes on Mountain Home Ranch Rd

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Assigned schools

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