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Single Family ResidenceResidential
$423,050$437 / 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

4521 MARMIAN WAY

RIVERSIDE, CA 92506
3
Beds
1
Baths
967 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1940
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.

Valuation

$423K
$391K low$455K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,668 (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.$147,339 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$57,403
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$89,936
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$144,451
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$391,770

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.10 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

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.0.12
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.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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.

M
Sierra Middle SchoolC
Middle · Grades 7–8 · 0.6 mi
E
Madison Elementary SchoolB-
Elementary · Grades KG–6 · 0.9 mi
H
Ramona High SchoolC
High · Grades 9–12 · 1.1 mi

District: Riverside Unified School District

Neighborhood · ZIP 92506These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.350

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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.47,695
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,910 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$109,200
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,774
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%

Owner Tools

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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

4521 Marmian Way 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.

  • Among the least valuable homes in Riverside 92506
  • Costs more per square foot than 87% of homes in Riverside County
  • Smaller than 95% of homes in Riverside 92506
  • Has a smaller lot than 97% of homes in Riverside 92506
  • Older than 98% of homes in Riverside County

What homes are worth in Riverside 92506

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

This home
$452K$1.8M

This home is worth less than almost all homes in Riverside 92506.

How it measures up in Riverside 92506

The dot is this home. The mark in the middle is the typical home in Riverside 92506.

Estimated value$423,050
CheaperTypical $700,034Pricier

Cheaper than almost all homes nearby

Price per ft²$437
CheaperTypical $390Pricier

Pricier than 70% of homes nearby

Living area967 ft²
SmallerTypical 1,806 ft²Bigger

Bigger than 5% of homes nearby

Lot size0.12 ac
SmallerTypical 0.24 acBigger

Bigger than 3% of homes nearby

Year built1940
OlderTypical 1965Newer

Newer than 13% of homes nearby

How 4521 Marmian Way ranks against every home in each area.
MeasureThis homeMagnolia CenterRiverside 92506Riverside County
Estimated valuepricier than$423,0506% of homesalmost no homes19% of homes
Price per ft²pricier than$43749% of homes70% of homes87% of homes
Living areabigger than967 ft²10% of homes5% of homes6% of homes
Lot sizebigger than0.12 ac5% of homes3% of homes11% of homes
Year builtnewer than194014% of homes13% of homes2% of homes

About 4521 Marmian Way

How much is 4521 Marmian Way, Riverside, CA worth?

The TopHap Estimate for 4521 Marmian Way, Riverside, CA is $423,050 as of Jul 14, 2026. The likely range is $391,139 to $454,961. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4521 Marmian Way, Riverside, CA last sell?

4521 Marmian Way, Riverside, CA last sold on Apr 30, 2002, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 4521 Marmian Way, Riverside, CA?

4521 Marmian Way, Riverside, CA has 3 bedrooms, 1 bathrooms, 967 square feet of living space and a 0.12-acre lot.

When was 4521 Marmian Way, Riverside, CA built?

4521 Marmian Way, Riverside, CA was built in 1940, making it 86 years old. The building has 1 story.

What schools serve 4521 Marmian Way, Riverside, CA?

4521 Marmian Way, Riverside, CA is assigned to Sierra Middle School (middle), rated C; Madison Elementary School (elementary), rated B-; Ramona High School (high), rated C. All sit in Riverside Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4521 Marmian Way, Riverside, CA compare to other homes in Riverside 92506?

Among the 14,868 homes in Riverside 92506, it is worth more than almost none of them ($423,050 against a typical $700,034), its price per square foot is higher than 70% of them ($437 against a typical $390), it is bigger than 5% of them (967 ft² against a typical 1,806 ft²), its lot is bigger than 3% of them (0.12 ac against a typical 0.24 ac) and it is newer than 13% of them (1940 against a typical 1965). Measured against all of Riverside County, it is worth more than 19% 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 4521 Marmian Way, Riverside, CA?

The 2025 property tax bill for 4521 Marmian Way, Riverside, CA was $1,668. The county assessed it at $147,339.

More homes on Marmian Way

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