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Single Family ResidenceResidential
$7,973,336$852 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

18121 LAS MONTANAS

RANCHO SANTA FE, CA 92091
5
Beds
6
Baths
9,353 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.
3.8 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.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$8M
$7.6M low$8.4M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$72,963 (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.$6,815,677 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,480,346
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$3,335,331
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$6,682,037

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.46
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
89
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
40
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
15
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
89
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountySAN DIEGO
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(8)

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
R. Roger Rowe Elementary SchoolA
Elementary · Grades KG–5 · 1.7 mi
M
R. Roger Rowe Middle SchoolA+
Middle · Grades 6–8 · 1.7 mi
H
Torrey Pines High SchoolA+
High · Grades 9–12 · 6.1 mi

District: Rancho Santa Fe Elementary School District

Neighborhood · ZIP 92091These 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.109
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.236

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.42%
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.1.0%
PopulationHow many people live in this area.765
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.472 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$167,259
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$232,218
Average tempThe average temperature here across a full year.62°F
Annual precipHow much rain and melted snow falls here in a typical year.13 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

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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

18121 Las Montanas 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 most valuable homes in San Diego County
  • Costs less per square foot than 93% of homes in The Covenant of Rancho Santa Fe
  • Among the largest homes in San Diego County
  • Has a bigger lot than 89% of homes in San Diego County
  • Newer than 74% of homes in San Diego County

What homes are worth in Rancho Santa Fe 92091

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

This home
$938K$10M

This home is worth more than 94% of homes in Rancho Santa Fe 92091.

How it measures up in Rancho Santa Fe 92091

The dot is this home. The mark in the middle is the typical home in Rancho Santa Fe 92091.

Estimated value$7,973,336
CheaperTypical $3,082,995Pricier

Pricier than 94% of homes nearby

Price per ft²$852
CheaperTypical $930Pricier

Pricier than 31% of homes nearby

Living area9,353 ft²
SmallerTypical 3,069 ft²Bigger

Bigger than 98% of homes nearby

Lot size3.8 ac
SmallerTypical 1 acBigger

Bigger than 87% of homes nearby

Year built1999
OlderTypical 1988Newer

Newer than 71% of homes nearby

How 18121 Las Montanas ranks against every home in each area.
MeasureThis homeThe Covenant of Rancho Santa FeRancho Santa Fe 92091San Diego County
Estimated valuepricier than$7,973,33683% of homes94% of homesalmost all homes
Price per ft²pricier than$8527% of homes31% of homes88% of homes
Living areabigger than9,353 ft²96% of homes98% of homesalmost all homes
Lot sizebigger than3.8 ac81% of homes87% of homes89% of homes
Year builtnewer than199973% of homes71% of homes74% of homes

About 18121 Las Montanas

How much is 18121 Las Montanas, Rancho Santa Fe, CA worth?

The TopHap Estimate for 18121 Las Montanas, Rancho Santa Fe, CA is $7,973,336 as of Aug 30, 2026. The likely range is $7,575,953 to $8,370,718. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18121 Las Montanas, Rancho Santa Fe, CA last sell?

18121 Las Montanas, Rancho Santa Fe, CA last sold on Feb 2, 2004, according to the county's recorded deed. TopHap holds 6 recorded sales for this parcel.

How big is 18121 Las Montanas, Rancho Santa Fe, CA?

18121 Las Montanas, Rancho Santa Fe, CA has 5 bedrooms, 6 bathrooms and 9,353 square feet of living space.

When was 18121 Las Montanas, Rancho Santa Fe, CA built?

18121 Las Montanas, Rancho Santa Fe, CA was built in 1999, making it 27 years old.

What schools serve 18121 Las Montanas, Rancho Santa Fe, CA?

18121 Las Montanas, Rancho Santa Fe, CA is assigned to R. Roger Rowe Elementary School (elementary), rated A; R. Roger Rowe Middle School (middle), rated A+; Torrey Pines High School (high), rated A+. All sit in Rancho Santa Fe Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18121 Las Montanas, Rancho Santa Fe, CA compare to other homes in Rancho Santa Fe 92091?

Among the 1,269 homes in Rancho Santa Fe 92091, it is worth more than 94% of them ($7,973,336 against a typical $3,082,995), its price per square foot is higher than 31% of them ($852 against a typical $930), it is bigger than 98% of them (9,353 ft² against a typical 3,069 ft²), its lot is bigger than 87% of them (3.8 ac against a typical 1 ac) and it is newer than 71% of them (1999 against a typical 1988). Measured against all of San Diego County, it is worth more than almost all 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 18121 Las Montanas, Rancho Santa Fe, CA?

The 2025 property tax bill for 18121 Las Montanas, Rancho Santa Fe, CA was $72,963. The county assessed it at $6,815,677.

More homes on Las Montanas

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Assigned schools

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