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Single Family ResidenceResidential
$395,556$181 / 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 96How 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 $525,000 on Feb 19, 2020

4278 12TH ST

RIVERSIDE, CA 92501
4
Beds
2
Baths
2,188 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1912
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$396K
$381K low$410K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$525,000 · Feb 19, 2020
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$0
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$0
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.53%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$406,500
GUARANTEED RATE INC · recorded Apr 22, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,436 (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.$585,642 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$83,661
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$501,981
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$574,160

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.0.15
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.Rock / Gravel
HeatingThe type of heating system in the home.Central
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.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(10)

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(1)

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

M
Central Middle School of Arts and InnovationC-
Middle · Grades 7–8 · 0.6 mi
E
Bryant School of Arts and InnovationA-
Elementary · Grades KG–6 · 0.7 mi
H
Poly High SchoolB
High · Grades 9–12 · 2.2 mi

District: Riverside Unified School District

Neighborhood · ZIP 92501These 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.98
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.428

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.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.0%
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.22,671
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,923 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,089
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$94,158
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.11 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

4278 12th St 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 95% of homes in Riverside 92501
  • Among the lowest price per square foot in Riverside 92501
  • Bigger than 85% of homes in Riverside 92501
  • Has a smaller lot than 75% of homes in Riverside County
  • Among the oldest homes in Riverside County

What homes are worth in Riverside 92501

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

This home
$369K$909K

This home is worth more than 5% of homes in Riverside 92501.

How it measures up in Riverside 92501

The dot is this home. The mark in the middle is the typical home in Riverside 92501.

Estimated value$395,556
CheaperTypical $531,834Pricier

Pricier than 5% of homes nearby

Price per ft²$181
CheaperTypical $383Pricier

Cheaper than almost all homes nearby

Living area2,188 ft²
SmallerTypical 1,394 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.15 ac
SmallerTypical 0.17 acBigger

Bigger than 29% of homes nearby

Year built1912
OlderTypical 1956Newer

Newer than 13% of homes nearby

How 4278 12th St ranks against every home in each area.
MeasureThis homeDowntown RiversideRiverside 92501Riverside County
Estimated valuepricier than$395,5566% of homes5% of homes14% of homes
Price per ft²pricier than$181almost no homesalmost no homes2% of homes
Living areabigger than2,188 ft²81% of homes85% of homes66% of homes
Lot sizebigger than0.15 ac30% of homes29% of homes25% of homes
Year builtnewer than191226% of homes13% of homesalmost no homes

About 4278 12th St

How much is 4278 12th St, Riverside, CA worth?

The TopHap Estimate for 4278 12th St, Riverside, CA is $395,556 as of Jul 14, 2026. The likely range is $381,082 to $410,030. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4278 12th St, Riverside, CA last sell?

4278 12th St, Riverside, CA last sold on Feb 19, 2020 for $525,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 4278 12th St, Riverside, CA?

4278 12th St, Riverside, CA has 4 bedrooms, 2 bathrooms, 2,188 square feet of living space and a 0.15-acre lot.

When was 4278 12th St, Riverside, CA built?

4278 12th St, Riverside, CA was built in 1912, making it 114 years old. The building has 2 stories.

What schools serve 4278 12th St, Riverside, CA?

4278 12th St, Riverside, CA is assigned to Central Middle School of Arts and Innovation (middle), rated C-; Bryant School of Arts and Innovation (elementary), rated A-; Poly High School (high), rated B. All sit in Riverside Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4278 12th St, Riverside, CA compare to other homes in Riverside 92501?

Among the 4,902 homes in Riverside 92501, it is worth more than 5% of them ($395,556 against a typical $531,834), its price per square foot is higher than almost none of them ($181 against a typical $383), it is bigger than 85% of them (2,188 ft² against a typical 1,394 ft²), its lot is bigger than 29% of them (0.15 ac against a typical 0.17 ac) and it is newer than 13% of them (1912 against a typical 1956). Measured against all of Riverside County, it is worth more than 14% 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 4278 12th St, Riverside, CA?

The 2025 property tax bill for 4278 12th St, Riverside, CA was $6,436. The county assessed it at $585,642.

More homes on 12th St

Closest homes

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Assigned schools

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