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Single Family ResidenceResidential
$3,060,774$1,016 / 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 99How 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

433 WALNUT PL

COSTA MESA, CA 92627
4
Beds
3.5
Baths
3,013 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.
0.17 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.
1
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$3.1M
$3M low$3.1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$21,478 (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.$1,992,063 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,685,830
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$306,233
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,953,003

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.3 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.minimal

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
CountyORANGE
Lot (acres)The size of the land the home sits on, from county records.0.17
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

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.

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

E
Woodland Elementary School
Elementary · Grades KG–2 · 0.3 mi
H
Newport Harbor High SchoolB+
High · Grades 9–12 · 1.0 mi
M
Horace Ensign Intermediate SchoolA-
Middle · Grades 7–8 · 1.4 mi

District: Newport-Mesa Unified School District

Neighborhood · ZIP 92627These 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.115
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.348

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.61,966
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.9,973 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,943
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,320
Average tempThe average temperature here across a full year.62°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.75%

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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

433 Walnut Pl 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 97% of homes in Costa Mesa 92627
  • Costs more per square foot than 92% of homes in Orange County
  • Bigger than 91% of homes in Costa Mesa 92627
  • Has a bigger lot than 70% of homes in Orange County
  • Older than 95% of homes in Orange County

What homes are worth in Costa Mesa 92627

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

This home
$677K$3.2M

This home is worth more than 97% of homes in Costa Mesa 92627.

How it measures up in Costa Mesa 92627

The dot is this home. The mark in the middle is the typical home in Costa Mesa 92627.

Estimated value$3,060,774
CheaperTypical $1,367,281Pricier

Pricier than 97% of homes nearby

Price per ft²$1016
CheaperTypical $875Pricier

Pricier than 63% of homes nearby

Living area3,013 ft²
SmallerTypical 1,564 ft²Bigger

Bigger than 91% of homes nearby

Lot size0.17 ac
SmallerTypical 0.16 acBigger

Bigger than 69% of homes nearby

Year built1951
OlderTypical 1964Newer

Newer than 12% of homes nearby

How 433 Walnut Pl ranks against every home in each area.
MeasureThis homeEastside Costa MesaCosta Mesa 92627Orange County
Estimated valuepricier than$3,060,77491% of homes97% of homes94% of homes
Price per ft²pricier than$101644% of homes63% of homes92% of homes
Living areabigger than3,013 ft²89% of homes91% of homes89% of homes
Lot sizebigger than0.17 ac62% of homes69% of homes70% of homes
Year builtnewer than195119% of homes12% of homes5% of homes

About 433 Walnut Pl

How much is 433 Walnut Pl, Costa Mesa, CA worth?

The TopHap Estimate for 433 Walnut Pl, Costa Mesa, CA is $3,060,774 as of Sep 24, 2026. The likely range is $3,028,058 to $3,093,490. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 433 Walnut Pl, Costa Mesa, CA last sell?

433 Walnut Pl, Costa Mesa, CA last sold on Apr 9, 2020, according to the county's recorded deed.

How big is 433 Walnut Pl, Costa Mesa, CA?

433 Walnut Pl, Costa Mesa, CA has 4 bedrooms, 3.5 bathrooms, 3,013 square feet of living space and a 0.17-acre lot.

When was 433 Walnut Pl, Costa Mesa, CA built?

433 Walnut Pl, Costa Mesa, CA was built in 1951, making it 75 years old. The building has 1 story.

What schools serve 433 Walnut Pl, Costa Mesa, CA?

433 Walnut Pl, Costa Mesa, CA is assigned to Woodland Elementary School (elementary); Newport Harbor High School (high), rated B+; Horace Ensign Intermediate School (middle), rated A-. All sit in Newport-Mesa Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 433 Walnut Pl, Costa Mesa, CA compare to other homes in Costa Mesa 92627?

Among the 12,417 homes in Costa Mesa 92627, it is worth more than 97% of them ($3,060,774 against a typical $1,367,281), its price per square foot is higher than 63% of them ($1016 against a typical $875), it is bigger than 91% of them (3,013 ft² against a typical 1,564 ft²), its lot is bigger than 69% of them (0.17 ac against a typical 0.16 ac) and it is newer than 12% of them (1951 against a typical 1964). Measured against all of Orange County, it is worth more than 94% 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 433 Walnut Pl, Costa Mesa, CA?

The 2025 property tax bill for 433 Walnut Pl, Costa Mesa, CA was $21,478. The county assessed it at $1,992,063.

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