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Duplex (2 Units, Any Combination)Residential

531 OSBORN AVE

RIVERHEAD, NY 11901
6
Beds
2
Baths
1,330 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.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,960 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$25,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$19,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$306,373

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.12
HeatingThe type of heating system in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Canal
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 120 ft²

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.

M
Riverhead Middle SchoolD
Middle · Grades 6–8 · 0.3 mi
E
Roanoke Avenue SchoolD-
Elementary · Grades PK–4 · 0.4 mi
H
Riverhead Senior High SchoolC-
High · Grades 9–12 · 0.5 mi

District: Riverhead Central School District

Neighborhood · ZIP 11901These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.50

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.90%
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.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.29,638
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.531 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$77,609
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,711
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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

531 Osborn Ave 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.

  • Smaller than 70% of homes in Suffolk County
  • Has a smaller lot than 98% of homes in Riverhead
  • Older than 97% of homes in Suffolk County

How it measures up in Riverhead 11901

The dot is this home. The mark in the middle is the typical home in Riverhead 11901.

Living area1,330 ft²
SmallerTypical 1,378 ft²Bigger

Bigger than 46% of homes nearby

Lot size0.12 ac
SmallerTypical 0.32 acBigger

Bigger than 3% of homes nearby

Year built1920
OlderTypical 1991Newer

Newer than 5% of homes nearby

How 531 Osborn Ave ranks against every home in each area.
MeasureThis homeRiverheadRiverhead 11901Suffolk County
Living areabigger than1,330 ft²40% of homes46% of homes30% of homes
Lot sizebigger than0.12 ac2% of homes3% of homes10% of homes
Year builtnewer than19209% of homes5% of homes3% of homes

About 531 Osborn Ave

When did 531 Osborn Ave, Riverhead, NY last sell?

531 Osborn Ave, Riverhead, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 531 Osborn Ave, Riverhead, NY?

531 Osborn Ave, Riverhead, NY has 6 bedrooms, 2 bathrooms, 1,330 square feet of living space and a 0.12-acre lot.

When was 531 Osborn Ave, Riverhead, NY built?

531 Osborn Ave, Riverhead, NY was built in 1920, making it 106 years old. The building has 2 stories.

What schools serve 531 Osborn Ave, Riverhead, NY?

531 Osborn Ave, Riverhead, NY is assigned to Riverhead Middle School (middle), rated D; Roanoke Avenue School (elementary), rated D-; Riverhead Senior High School (high), rated C-. All sit in Riverhead Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 531 Osborn Ave, Riverhead, NY compare to other homes in Riverhead 11901?

Among the 9,718 homes in Riverhead 11901, it is bigger than 46% of them (1,330 ft² against a typical 1,378 ft²), its lot is bigger than 3% of them (0.12 ac against a typical 0.32 ac) and it is newer than 5% of them (1920 against a typical 1991). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 531 Osborn Ave, Riverhead, NY?

The 2024 property tax bill for 531 Osborn Ave, Riverhead, NY was $6,960. The county assessed it at $25,000.

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