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Single Family ResidenceResidential
$730,852$627 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

517 UNION PL

BREA, CA 92821
2
Beds
1
Baths
1,165 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.
1950
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

$731K
$672K low$790K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,828 (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.$406,052 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$340,927
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$65,125
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$398,091

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
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.Yes
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
Laurel Elementary Magnet School of Innovation and Career ExplrB+
Elementary · Grades KG–6 · 0.2 mi
M
Brea Junior High SchoolA-
Middle · Grades 7–8 · 0.8 mi
H
Brea Olinda High SchoolA-
High · Grades 9–12 · 1.7 mi

District: Brea-Olinda Unified School District

Neighborhood · ZIP 92821These 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.70
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 100.411

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.4%
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.45,720
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,381 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,359
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$139,524
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.17 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.74%

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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

517 Union 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 less than 90% of homes in Brea 92821
  • Costs more per square foot than 76% of homes in Brea 92821
  • Smaller than 91% of homes in Brea 92821
  • Has a bigger lot than 67% of homes in Orange County
  • Older than 96% of homes in Orange County

What homes are worth in Brea 92821

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

This home
$557K$2.5M

This home is worth more than 10% of homes in Brea 92821.

How it measures up in Brea 92821

The dot is this home. The mark in the middle is the typical home in Brea 92821.

Estimated value$730,852
CheaperTypical $1,069,015Pricier

Pricier than 10% of homes nearby

Price per ft²$627
CheaperTypical $563Pricier

Pricier than 76% of homes nearby

Living area1,165 ft²
SmallerTypical 1,890 ft²Bigger

Bigger than 9% of homes nearby

Lot size0.17 ac
SmallerTypical 0.16 acBigger

Bigger than 61% of homes nearby

Year built1950
OlderTypical 1975Newer

Newer than 6% of homes nearby

How 517 Union Pl ranks against every home in each area.
MeasureThis homeBrea 92821Orange County
Estimated valuepricier than$730,85210% of homes16% of homes
Price per ft²pricier than$62776% of homes41% of homes
Living areabigger than1,165 ft²9% of homes16% of homes
Lot sizebigger than0.17 ac61% of homes67% of homes
Year builtnewer than19506% of homes4% of homes

About 517 Union Pl

How much is 517 Union Pl, Brea, CA worth?

The TopHap Estimate for 517 Union Pl, Brea, CA is $730,852 as of Oct 21, 2026. The likely range is $672,004 to $789,700. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 517 Union Pl, Brea, CA last sell?

517 Union Pl, Brea, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 517 Union Pl, Brea, CA?

517 Union Pl, Brea, CA has 2 bedrooms, 1 bathrooms, 1,165 square feet of living space and a 0.17-acre lot.

When was 517 Union Pl, Brea, CA built?

517 Union Pl, Brea, CA was built in 1950, making it 76 years old. The building has 1 story.

What schools serve 517 Union Pl, Brea, CA?

517 Union Pl, Brea, CA is assigned to Laurel Elementary Magnet School of Innovation and Career Explr (elementary), rated B+; Brea Junior High School (middle), rated A-; Brea Olinda High School (high), rated A-. All sit in Brea-Olinda Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 517 Union Pl, Brea, CA compare to other homes in Brea 92821?

Among the 10,782 homes in Brea 92821, it is worth more than 10% of them ($730,852 against a typical $1,069,015), its price per square foot is higher than 76% of them ($627 against a typical $563), it is bigger than 9% of them (1,165 ft² against a typical 1,890 ft²), its lot is bigger than 61% of them (0.17 ac against a typical 0.16 ac) and it is newer than 6% of them (1950 against a typical 1975). Measured against all of Orange County, it is worth more than 16% 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 517 Union Pl, Brea, CA?

The 2025 property tax bill for 517 Union Pl, Brea, CA was $4,828. The county assessed it at $406,052.

More homes on Union Pl

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