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Duplex (2 Units, Any Combination)Residential
$524,038$457 / 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 Jul 14, 2026
Last sold for $151,000 on Sep 16, 2008

3987 BOSTON AVE

SAN DIEGO, CA 92113
4
Beds
2
Baths
1,146 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.
2,929 ft²
Lot SizeThe size of the land the home sits on, from county records.
1969
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$524K
$500K low$548K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$151,000 · Sep 16, 2008

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,905 (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.$198,325 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$103,129
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$95,196
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$194,437

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
69
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
41
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
35
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
9
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.40 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.0.2 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountySAN DIEGO
Lot (acres)The size of the land the home sits on, from county records.0.67
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Baker Elementary SchoolD
Elementary · Grades KG–5 · 0.3 mi
M
Knox Middle SchoolD
Middle · Grades 6–8 · 1.1 mi
H
Lincoln High SchoolD
High · Grades 9–12 · 1.3 mi

District: San Diego City Unified School District

Neighborhood · ZIP 92113These 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.103
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.321

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.6%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.48,355
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,341 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$51,534
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$70,624
Average tempThe average temperature here across a full year.62°F
Annual precipHow much rain and melted snow falls here in a typical year.10 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

3987 Boston Ave 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 91% of homes in San Diego County
  • Costs less per square foot than 81% of homes in Southeastern
  • Smaller than 73% of homes in San Diego County
  • Among the smallest lots in Southeastern
  • Older than 78% of homes in San Diego County

What homes are worth in San Diego 92113

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

This home
$336K$895K

This home is worth more than 31% of homes in San Diego 92113.

How it measures up in San Diego 92113

The dot is this home. The mark in the middle is the typical home in San Diego 92113.

Estimated value$524,038
CheaperTypical $583,381Pricier

Pricier than 31% of homes nearby

Price per ft²$457
CheaperTypical $531Pricier

Pricier than 23% of homes nearby

Living area1,146 ft²
SmallerTypical 1,250 ft²Bigger

Bigger than 43% of homes nearby

Lot size2,929 ft²
SmallerTypical 0.16 acBigger

Smaller than almost all homes nearby

Year built1969
OlderTypical 1969Newer

Newer than 50% of homes nearby

How 3987 Boston Ave ranks against every home in each area.
MeasureThis homeSoutheasternSan Diego 92113San Diego County
Estimated valuepricier than$524,03830% of homes31% of homes9% of homes
Price per ft²pricier than$45719% of homes23% of homes23% of homes
Living areabigger than1,146 ft²43% of homes43% of homes27% of homes
Lot sizebigger than2,929 ft²almost no homesalmost no homes7% of homes
Year builtnewer than196950% of homes50% of homes22% of homes

About 3987 Boston Ave

How much is 3987 Boston Ave, San Diego, CA worth?

The TopHap Estimate for 3987 Boston Ave, San Diego, CA is $524,038 as of Jul 14, 2026. The likely range is $500,447 to $547,629. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3987 Boston Ave, San Diego, CA last sell?

3987 Boston Ave, San Diego, CA last sold on Sep 16, 2008 for $151,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 3987 Boston Ave, San Diego, CA?

3987 Boston Ave, San Diego, CA has 4 bedrooms, 2 bathrooms, 1,146 square feet of living space and a 0.67-acre lot.

When was 3987 Boston Ave, San Diego, CA built?

3987 Boston Ave, San Diego, CA was built in 1969, making it 57 years old. It is a duplex single home. The building has 2 stories.

What schools serve 3987 Boston Ave, San Diego, CA?

3987 Boston Ave, San Diego, CA is assigned to Baker Elementary School (elementary), rated D; Knox Middle School (middle), rated D; Lincoln High School (high), rated D. All sit in San Diego City Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3987 Boston Ave, San Diego, CA compare to other homes in San Diego 92113?

Among the 6,842 homes in San Diego 92113, it is worth more than 31% of them ($524,038 against a typical $583,381), its price per square foot is higher than 23% of them ($457 against a typical $531), it is bigger than 43% of them (1,146 ft² against a typical 1,250 ft²), its lot is bigger than almost none of them (2,929 ft² against a typical 0.16 ac) and it is newer than 50% of them (1969 against a typical 1969). Measured against all of San Diego County, it is worth more than 9% 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 3987 Boston Ave, San Diego, CA?

The 2025 property tax bill for 3987 Boston Ave, San Diego, CA was $2,905. The county assessed it at $198,325.

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