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Single Family ResidenceResidential
$1,003,394$285 / 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 Jul 14, 2026
Last sold for $499,000 on Dec 23, 2024

12999 ARROYO SECO CT

RIVERSIDE, CA 92503
5
Beds
4
Baths
3,520 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
2024
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1M
$927K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$499,000 · Dec 23, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$17,232 (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.$1,017,949 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$306,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$711,949
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$997,990

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.46
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
88
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
64
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
5
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
39
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.1 percent flood zone

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
CountyRIVERSIDE
Lot (acres)The size of the land the home sits on, from county records.0.20
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Tile
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Lake Mathews Elementary SchoolA-
Elementary · Grades KG–6 · 0.7 mi
H
Arlington High SchoolC-
High · Grades 9–12 · 3.5 mi
M
Frank Augustus Miller Middle SchoolA-
Middle · Grades 7–8 · 5.0 mi

District: Riverside Unified School District

Neighborhood · ZIP 92503These 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.57
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 100.290

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.96,024
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,949 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,069
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,138
Average tempThe average temperature here across a full year.64°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.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

12999 Arroyo Seco Ct 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 96% of homes in Riverside 92503
  • Costs less per square foot than 80% of homes in Riverside 92503
  • Bigger than 94% of homes in Riverside County
  • Has a smaller lot than 86% of homes in Woodcrest
  • Among the newest homes in Riverside 92503

What homes are worth in Riverside 92503

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

This home
$392K$1.1M

This home is worth more than 96% of homes in Riverside 92503.

How it measures up in Riverside 92503

The dot is this home. The mark in the middle is the typical home in Riverside 92503.

Estimated value$1,003,394
CheaperTypical $598,362Pricier

Pricier than 96% of homes nearby

Price per ft²$285
CheaperTypical $381Pricier

Pricier than 20% of homes nearby

Living area3,520 ft²
SmallerTypical 1,536 ft²Bigger

Bigger than 91% of homes nearby

Lot size0.2 ac
SmallerTypical 0.19 acBigger

Bigger than 60% of homes nearby

Year built2024
OlderTypical 1978Newer

Newer than almost all homes nearby

How 12999 Arroyo Seco Ct ranks against every home in each area.
MeasureThis homeWoodcrestRiverside 92503Riverside County
Estimated valuepricier than$1,003,39478% of homes96% of homes92% of homes
Price per ft²pricier than$28531% of homes20% of homes39% of homes
Living areabigger than3,520 ft²79% of homes91% of homes94% of homes
Lot sizebigger than0.2 ac14% of homes60% of homes53% of homes
Year builtnewer than202496% of homesalmost all homesalmost all homes

About 12999 Arroyo Seco Ct

How much is 12999 Arroyo Seco Ct, Riverside, CA worth?

The TopHap Estimate for 12999 Arroyo Seco Ct, Riverside, CA is $1,003,394 as of Jul 14, 2026. The likely range is $927,194 to $1,079,594. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12999 Arroyo Seco Ct, Riverside, CA last sell?

12999 Arroyo Seco Ct, Riverside, CA last sold on Dec 23, 2024 for $499,000, according to the county's recorded deed.

How big is 12999 Arroyo Seco Ct, Riverside, CA?

12999 Arroyo Seco Ct, Riverside, CA has 5 bedrooms, 4 bathrooms, 3,520 square feet of living space and a 0.20-acre lot.

When was 12999 Arroyo Seco Ct, Riverside, CA built?

12999 Arroyo Seco Ct, Riverside, CA was built in 2024, making it 2 years old. The building has 2 stories.

What schools serve 12999 Arroyo Seco Ct, Riverside, CA?

12999 Arroyo Seco Ct, Riverside, CA is assigned to Lake Mathews Elementary School (elementary), rated A-; Arlington High School (high), rated C-; Frank Augustus Miller Middle School (middle), rated A-. All sit in Riverside Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12999 Arroyo Seco Ct, Riverside, CA compare to other homes in Riverside 92503?

Among the 21,419 homes in Riverside 92503, it is worth more than 96% of them ($1,003,394 against a typical $598,362), its price per square foot is higher than 20% of them ($285 against a typical $381), it is bigger than 91% of them (3,520 ft² against a typical 1,536 ft²), its lot is bigger than 60% of them (0.2 ac against a typical 0.19 ac) and it is newer than almost all of them (2024 against a typical 1978). Measured against all of Riverside County, it is worth more than 92% 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 12999 Arroyo Seco Ct, Riverside, CA?

The 2025 property tax bill for 12999 Arroyo Seco Ct, Riverside, CA was $17,232. The county assessed it at $1,017,949.

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