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Single Family ResidenceResidential
$2,200,290$1,325 / 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 Jul 14, 2026
Last sold for $1,409,500 on Jul 6, 2020

643 ROSEMONT ST

LA JOLLA, CA 92037
3
Beds
2.5
Baths
1,661 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.
2,428 ft²
Lot SizeThe size of the land the home sits on, from county records.
1991
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$2.2M
$2.1M low$2.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,409,500 · Jul 6, 2020
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$1,046,290
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$837,032
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.48%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$1,154,000
GUARANTEED RATE INC · recorded Nov 1, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$19,559 (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.$1,556,036 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,269,691
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$286,345
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,525,527

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.37
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
51
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
37
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
11
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
87
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
Lot (acres)The size of the land the home sits on, from county records.0.56
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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.

H
La Jolla High SchoolA+
High · Grades 9–12 · 0.4 mi
M
Muirlands Middle SchoolA
Middle · Grades 6–8 · 0.4 mi
E
La Jolla Elementary SchoolA+
Elementary · Grades KG–5 · 0.8 mi

District: San Diego City Unified School District

Neighborhood · ZIP 92037These 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.118
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.418

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.86%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
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.49,113
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,313 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,757
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$185,835
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.12 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

643 Rosemont St 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 93% of homes in San Diego County
  • Costs more per square foot than 98% of homes in San Diego County
  • Among the smallest lots in La Jolla 92037
  • Newer than 72% of homes in La Jolla 92037

What homes are worth in La Jolla 92037

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

This home
$530K$7M

This home is worth more than 50% of homes in La Jolla 92037.

How it measures up in La Jolla 92037

The dot is this home. The mark in the middle is the typical home in La Jolla 92037.

Estimated value$2,200,290
CheaperTypical $2,207,793Pricier

Pricier than 50% of homes nearby

Price per ft²$1325
CheaperTypical $1047Pricier

Pricier than 72% of homes nearby

Living area1,661 ft²
SmallerTypical 1,922 ft²Bigger

Bigger than 41% of homes nearby

Lot size2,428 ft²
SmallerTypical 0.47 acBigger

Smaller than almost all homes nearby

Year built1991
OlderTypical 1978Newer

Newer than 72% of homes nearby

How 643 Rosemont St ranks against every home in each area.
MeasureThis homeLa Jolla 92037San Diego County
Estimated valuepricier than$2,200,29050% of homes93% of homes
Price per ft²pricier than$132572% of homes98% of homes
Living areabigger than1,661 ft²41% of homes58% of homes
Lot sizebigger than2,428 ft²almost no homes7% of homes
Year builtnewer than199172% of homes65% of homes

About 643 Rosemont St

How much is 643 Rosemont St, La Jolla, CA worth?

The TopHap Estimate for 643 Rosemont St, La Jolla, CA is $2,200,290 as of Jul 14, 2026. The likely range is $2,059,053 to $2,341,527. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 643 Rosemont St, La Jolla, CA last sell?

643 Rosemont St, La Jolla, CA last sold on Jul 6, 2020 for $1,409,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 643 Rosemont St, La Jolla, CA?

643 Rosemont St, La Jolla, CA has 3 bedrooms, 2.5 bathrooms, 1,661 square feet of living space and a 0.56-acre lot.

When was 643 Rosemont St, La Jolla, CA built?

643 Rosemont St, La Jolla, CA was built in 1991, making it 35 years old. The building has 1 story.

What schools serve 643 Rosemont St, La Jolla, CA?

643 Rosemont St, La Jolla, CA is assigned to La Jolla High School (high), rated A+; Muirlands Middle School (middle), rated A; La Jolla Elementary School (elementary), rated A+. All sit in San Diego City Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 643 Rosemont St, La Jolla, CA compare to other homes in La Jolla 92037?

Among the 17,558 homes in La Jolla 92037, it is worth more than 50% of them ($2,200,290 against a typical $2,207,793), its price per square foot is higher than 72% of them ($1325 against a typical $1047), it is bigger than 41% of them (1,661 ft² against a typical 1,922 ft²), its lot is bigger than almost none of them (2,428 ft² against a typical 0.47 ac) and it is newer than 72% of them (1991 against a typical 1978). Measured against all of San Diego County, it is worth more than 93% 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 643 Rosemont St, La Jolla, CA?

The 2025 property tax bill for 643 Rosemont St, La Jolla, CA was $19,559. The county assessed it at $1,556,036.

More homes on Rosemont St

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Assigned schools

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