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Single Family ResidenceResidential
$1,129,400$523 / 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 90How 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
Last sold for $365,000 on Aug 18, 2010

521 CASSOU RD

SAN MARCOS, CA 92069
4
Beds
2
Baths
2,161 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.
1.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.1M
$1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$365,000 · Aug 18, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,382 (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.$476,969 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$274,421
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$202,548
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$467,618

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.49
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
94
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
38
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
23
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
RoofThe main material covering the roof, such as asphalt shingle or tile.Tile
HeatingThe type of heating system in the home.Heat Pump
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
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(14)

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(4)

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

E
Twin Oaks Elementary SchoolB
Elementary · Grades KG–5 · 0.6 mi
H
Mission Hills High SchoolB
High · Grades 9–12 · 2.6 mi
M
Woodland Park Middle SchoolB
Middle · Grades 6–8 · 2.9 mi

District: San Marcos Unified School District

Neighborhood · ZIP 92069These 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.67
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.189

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
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.49,216
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,636 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,637
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$113,737
Average tempThe average temperature here across a full year.62°F
Annual precipHow much rain and melted snow falls here in a typical year.16 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

521 Cassou 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 82% of homes in San Marcos 92069
  • Costs more per square foot than 76% of homes in Twin Oaks Valley
  • Bigger than 76% of homes in San Diego County
  • Has a bigger lot than 76% of homes in San Marcos 92069
  • Older than 75% of homes in Twin Oaks Valley

What homes are worth in San Marcos 92069

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

This home
$465K$1.6M

This home is worth more than 82% of homes in San Marcos 92069.

How it measures up in San Marcos 92069

The dot is this home. The mark in the middle is the typical home in San Marcos 92069.

Estimated value$1,129,400
CheaperTypical $873,647Pricier

Pricier than 82% of homes nearby

Price per ft²$523
CheaperTypical $498Pricier

Pricier than 61% of homes nearby

Living area2,161 ft²
SmallerTypical 1,678 ft²Bigger

Bigger than 71% of homes nearby

Lot size1.14 ac
SmallerTypical 0.23 acBigger

Bigger than 76% of homes nearby

Year built1979
OlderTypical 1990Newer

Newer than 34% of homes nearby

How 521 Cassou Rd ranks against every home in each area.
MeasureThis homeTwin Oaks ValleySan Marcos 92069San Diego County
Estimated valuepricier than$1,129,40050% of homes82% of homes68% of homes
Price per ft²pricier than$52376% of homes61% of homes39% of homes
Living areabigger than2,161 ft²38% of homes71% of homes76% of homes
Lot sizebigger than1.14 ac69% of homes76% of homes76% of homes
Year builtnewer than197925% of homes34% of homes41% of homes

About 521 Cassou Rd

How much is 521 Cassou Rd, San Marcos, CA worth?

The TopHap Estimate for 521 Cassou Rd, San Marcos, CA is $1,129,400 as of Sep 24, 2026. The likely range is $1,014,692 to $1,244,108. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 Cassou Rd, San Marcos, CA last sell?

521 Cassou Rd, San Marcos, CA last sold on Aug 18, 2010 for $365,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 521 Cassou Rd, San Marcos, CA?

521 Cassou Rd, San Marcos, CA has 4 bedrooms, 2 bathrooms and 2,161 square feet of living space.

When was 521 Cassou Rd, San Marcos, CA built?

521 Cassou Rd, San Marcos, CA was built in 1979, making it 47 years old. The building has 1 story.

What schools serve 521 Cassou Rd, San Marcos, CA?

521 Cassou Rd, San Marcos, CA is assigned to Twin Oaks Elementary School (elementary), rated B; Mission Hills High School (high), rated B; Woodland Park Middle School (middle), rated B. All sit in San Marcos Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Cassou Rd, San Marcos, CA compare to other homes in San Marcos 92069?

Among the 11,550 homes in San Marcos 92069, it is worth more than 82% of them ($1,129,400 against a typical $873,647), its price per square foot is higher than 61% of them ($523 against a typical $498), it is bigger than 71% of them (2,161 ft² against a typical 1,678 ft²), its lot is bigger than 76% of them (1.14 ac against a typical 0.23 ac) and it is newer than 34% of them (1979 against a typical 1990). Measured against all of San Diego County, it is worth more than 68% 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 521 Cassou Rd, San Marcos, CA?

The 2025 property tax bill for 521 Cassou Rd, San Marcos, CA was $5,382. The county assessed it at $476,969.

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