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Single Family ResidenceResidential
$670,744$451 / 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 91How 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

4300 HOLLY LN

BONSALL, CA 92003
2
Beds
1
Baths
1,487 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.
5.01 ac
Lot SizeThe size of the land the home sits on, from county records.
1951
Year BuiltThe year the home was originally built, according to county records.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$671K
$611K low$731K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,777 (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.$162,541 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$72,549
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$89,992
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$159,355

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.48
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
97
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.
16
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
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(2)

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
Bonsall Elementary SchoolB+
Elementary · Grades KG–5 · 2.0 mi
M
Norman L. Sullivan Middle SchoolB
Middle · Grades 6–8 · 4.4 mi
H
Bonsall High SchoolC+
High · Grades 9–12 · 4.4 mi

District: Bonsall Unified School District

Neighborhood · ZIP 92003These 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.113
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 100.242

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.6,058
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.325 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,281
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$151,670
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.15 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

4300 Holly Ln 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 less than 79% of homes in Bonsall 92003
  • Costs less per square foot than 79% of homes in San Diego County
  • Smaller than 80% of homes in Bonsall 92003
  • Has a bigger lot than 91% of homes in San Diego County
  • Older than 97% of homes in Bonsall 92003

What homes are worth in Bonsall 92003

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

This home
$379K$2.7M

This home is worth more than 21% of homes in Bonsall 92003.

How it measures up in Bonsall 92003

The dot is this home. The mark in the middle is the typical home in Bonsall 92003.

Estimated value$670,744
CheaperTypical $1,019,181Pricier

Pricier than 21% of homes nearby

Price per ft²$451
CheaperTypical $437Pricier

Pricier than 58% of homes nearby

Living area1,487 ft²
SmallerTypical 2,329 ft²Bigger

Bigger than 20% of homes nearby

Lot size5.01 ac
SmallerTypical 2.5 acBigger

Bigger than 82% of homes nearby

Year built1951
OlderTypical 1990Newer

Newer than 3% of homes nearby

How 4300 Holly Ln ranks against every home in each area.
MeasureThis homeBonsall 92003San Diego County
Estimated valuepricier than$670,74421% of homes23% of homes
Price per ft²pricier than$45158% of homes21% of homes
Living areabigger than1,487 ft²20% of homes50% of homes
Lot sizebigger than5.01 ac82% of homes91% of homes
Year builtnewer than19513% of homes6% of homes

About 4300 Holly Ln

How much is 4300 Holly Ln, Bonsall, CA worth?

The TopHap Estimate for 4300 Holly Ln, Bonsall, CA is $670,744 as of Sep 24, 2026. The likely range is $610,552 to $730,936. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4300 Holly Ln, Bonsall, CA last sell?

4300 Holly Ln, Bonsall, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 4300 Holly Ln, Bonsall, CA?

4300 Holly Ln, Bonsall, CA has 2 bedrooms, 1 bathrooms and 1,487 square feet of living space.

When was 4300 Holly Ln, Bonsall, CA built?

4300 Holly Ln, Bonsall, CA was built in 1951, making it 75 years old.

What schools serve 4300 Holly Ln, Bonsall, CA?

4300 Holly Ln, Bonsall, CA is assigned to Bonsall Elementary School (elementary), rated B+; Norman L. Sullivan Middle School (middle), rated B; Bonsall High School (high), rated C+. All sit in Bonsall Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4300 Holly Ln, Bonsall, CA compare to other homes in Bonsall 92003?

Among the 1,912 homes in Bonsall 92003, it is worth more than 21% of them ($670,744 against a typical $1,019,181), its price per square foot is higher than 58% of them ($451 against a typical $437), it is bigger than 20% of them (1,487 ft² against a typical 2,329 ft²), its lot is bigger than 82% of them (5.01 ac against a typical 2.5 ac) and it is newer than 3% of them (1951 against a typical 1990). Measured against all of San Diego County, it is worth more than 23% 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 4300 Holly Ln, Bonsall, CA?

The 2025 property tax bill for 4300 Holly Ln, Bonsall, CA was $1,777. The county assessed it at $162,541.

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