Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$673,875$549 / 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 89How 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
Last sold for $380,000 on Oct 16, 2013

4221 DIAMOND CIR

OCEANSIDE, CA 92056
3
Beds
2.5
Baths
1,228 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.
0.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1986
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

$674K
$597K low$751K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$380,000 · Oct 16, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,235 (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.$475,130 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$325,092
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$150,038
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$465,815

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.44
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
81
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.
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
Lot (acres)The size of the land the home sits on, from county records.0.10
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(5)

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
T.H.E. Leadership AcademyB-
Elementary · Grades KG–5 · 1.1 mi
M
Roosevelt Middle SchoolC-
Middle · Grades 6–8 · 2.1 mi
H
Vista High SchoolC-
High · Grades 9–12 · 2.6 mi

District: Vista Unified School District

Neighborhood · ZIP 92056These 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.79
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.218

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.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.4%
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.55,699
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,381 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$93,460
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,029
Average tempThe average temperature here across a full year.62°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%

Owner Tools

Do you own this home?
Claim this home

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

4221 Diamond Cir 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 77% of homes in Oceanside 92056
  • Costs more per square foot than 66% of homes in Peacock
  • Smaller than 75% of homes in Oceanside 92056
  • Among the smallest lots in Peacock
  • Newer than 65% of homes in Peacock

What homes are worth in Oceanside 92056

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

This home
$441K$1.4M

This home is worth more than 23% of homes in Oceanside 92056.

How it measures up in Oceanside 92056

The dot is this home. The mark in the middle is the typical home in Oceanside 92056.

Estimated value$673,875
CheaperTypical $848,707Pricier

Pricier than 23% of homes nearby

Price per ft²$549
CheaperTypical $536Pricier

Pricier than 56% of homes nearby

Living area1,228 ft²
SmallerTypical 1,590 ft²Bigger

Bigger than 25% of homes nearby

Lot size0.1 ac
SmallerTypical 0.21 acBigger

Bigger than 2% of homes nearby

Year built1986
OlderTypical 1987Newer

Newer than 46% of homes nearby

How 4221 Diamond Cir ranks against every home in each area.
MeasureThis homePeacockOceanside 92056San Diego County
Estimated valuepricier than$673,87543% of homes23% of homes26% of homes
Price per ft²pricier than$54966% of homes56% of homes47% of homes
Living areabigger than1,228 ft²42% of homes25% of homes33% of homes
Lot sizebigger than0.1 acalmost no homes2% of homes7% of homes
Year builtnewer than198665% of homes46% of homes55% of homes

About 4221 Diamond Cir

How much is 4221 Diamond Cir, Oceanside, CA worth?

The TopHap Estimate for 4221 Diamond Cir, Oceanside, CA is $673,875 as of Aug 30, 2026. The likely range is $596,718 to $751,032. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4221 Diamond Cir, Oceanside, CA last sell?

4221 Diamond Cir, Oceanside, CA last sold on Oct 16, 2013 for $380,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 4221 Diamond Cir, Oceanside, CA?

4221 Diamond Cir, Oceanside, CA has 3 bedrooms, 2.5 bathrooms, 1,228 square feet of living space and a 0.10-acre lot.

When was 4221 Diamond Cir, Oceanside, CA built?

4221 Diamond Cir, Oceanside, CA was built in 1986, making it 40 years old.

What schools serve 4221 Diamond Cir, Oceanside, CA?

4221 Diamond Cir, Oceanside, CA is assigned to T.H.E. Leadership Academy (elementary), rated B-; Roosevelt Middle School (middle), rated C-; Vista High School (high), rated C-. All sit in Vista Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4221 Diamond Cir, Oceanside, CA compare to other homes in Oceanside 92056?

Among the 18,540 homes in Oceanside 92056, it is worth more than 23% of them ($673,875 against a typical $848,707), its price per square foot is higher than 56% of them ($549 against a typical $536), it is bigger than 25% of them (1,228 ft² against a typical 1,590 ft²), its lot is bigger than 2% of them (0.1 ac against a typical 0.21 ac) and it is newer than 46% of them (1986 against a typical 1987). Measured against all of San Diego County, it is worth more than 26% 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 4221 Diamond Cir, Oceanside, CA?

The 2025 property tax bill for 4221 Diamond Cir, Oceanside, CA was $5,235. The county assessed it at $475,130.

More homes on Diamond Cir

Closest homes

More homes in Oceanside 92056

Assigned schools

Explore the area

See this home in context

Open 4221 Diamond Cir on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map