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Single Family ResidenceResidential
$1,489,314$594 / 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 94How 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
Last sold for $802,500 on Nov 16, 2007

31975 MILL STREAM RD

ROBINSON RANCH, CA 92679
3
Beds
3
Baths
2,507 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.
0.33 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.5M
$1.4M low$1.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$802,500 · Nov 16, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,841 (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.$1,075,174 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$750,698
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$324,476
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,054,093

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.0.33
HeatingThe type of heating system in the home.Gas
CoolingThe type of cooling or air conditioning in the home.Central
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(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.

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

E
Robinson Elementary SchoolA-
Elementary · Grades KG–6 · 0.4 mi
M
Rancho Santa Margarita Intermediate SchoolA
Middle · Grades 7–8 · 1.3 mi
H
Mission Viejo High SchoolA-
High · Grades 9–12 · 7.0 mi

District: Saddleback Valley Unified School District

Neighborhood · ZIP 92679These 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.40
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 100.260

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.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.8%
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.39,065
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.693 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$190,892
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$231,918
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.18 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

31975 Mill Stream Rd 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 72% of homes in Orange County
  • Costs less per square foot than 73% of homes in Robinson Ranch
  • Bigger than 79% of homes in Orange County
  • Has a bigger lot than 98% of homes in Robinson Ranch
  • Older than 81% of homes in Trabuco Canyon 92679

What homes are worth in Trabuco Canyon 92679

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

This home
$570K$4.6M

This home is worth more than 44% of homes in Trabuco Canyon 92679.

How it measures up in Trabuco Canyon 92679

The dot is this home. The mark in the middle is the typical home in Trabuco Canyon 92679.

Estimated value$1,489,314
CheaperTypical $1,563,327Pricier

Pricier than 44% of homes nearby

Price per ft²$594
CheaperTypical $611Pricier

Pricier than 41% of homes nearby

Living area2,507 ft²
SmallerTypical 2,606 ft²Bigger

Bigger than 46% of homes nearby

Lot size0.33 ac
SmallerTypical 0.16 acBigger

Bigger than 88% of homes nearby

Year built1987
OlderTypical 1993Newer

Newer than 19% of homes nearby

How 31975 Mill Stream Rd ranks against every home in each area.
MeasureThis homeRobinson RanchTrabuco Canyon 92679Orange County
Estimated valuepricier than$1,489,31460% of homes44% of homes72% of homes
Price per ft²pricier than$59427% of homes41% of homes32% of homes
Living areabigger than2,507 ft²69% of homes46% of homes79% of homes
Lot sizebigger than0.33 ac98% of homes88% of homes95% of homes
Year builtnewer than198738% of homes19% of homes70% of homes

About 31975 Mill Stream Rd

How much is 31975 Mill Stream Rd, Robinson Ranch, CA worth?

The TopHap Estimate for 31975 Mill Stream Rd, Robinson Ranch, CA is $1,489,314 as of Oct 21, 2026. The likely range is $1,406,678 to $1,571,950. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31975 Mill Stream Rd, Robinson Ranch, CA last sell?

31975 Mill Stream Rd, Robinson Ranch, CA last sold on Nov 16, 2007 for $802,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 31975 Mill Stream Rd, Robinson Ranch, CA?

31975 Mill Stream Rd, Robinson Ranch, CA has 3 bedrooms, 3 bathrooms, 2,507 square feet of living space and a 0.33-acre lot.

When was 31975 Mill Stream Rd, Robinson Ranch, CA built?

31975 Mill Stream Rd, Robinson Ranch, CA was built in 1987, making it 39 years old.

What schools serve 31975 Mill Stream Rd, Robinson Ranch, CA?

31975 Mill Stream Rd, Robinson Ranch, CA is assigned to Robinson Elementary School (elementary), rated A-; Rancho Santa Margarita Intermediate School (middle), rated A; Mission Viejo High School (high), rated A-. All sit in Saddleback Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31975 Mill Stream Rd, Robinson Ranch, CA compare to other homes in Trabuco Canyon 92679?

Among the 10,887 homes in Trabuco Canyon 92679, it is worth more than 44% of them ($1,489,314 against a typical $1,563,327), its price per square foot is higher than 41% of them ($594 against a typical $611), it is bigger than 46% of them (2,507 ft² against a typical 2,606 ft²), its lot is bigger than 88% of them (0.33 ac against a typical 0.16 ac) and it is newer than 19% of them (1987 against a typical 1993). Measured against all of Orange County, it is worth more than 72% 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 31975 Mill Stream Rd, Robinson Ranch, CA?

The 2025 property tax bill for 31975 Mill Stream Rd, Robinson Ranch, CA was $10,841. The county assessed it at $1,075,174.

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Assigned schools

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