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Residential (General/Single)Residential
$808,387
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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

CHELSEA AVE

RIVERHEAD, NY 11901
0
Baths
560 ft²
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$808K
$755K low$862K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$65 (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.$20 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$20
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$3,390

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.9 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.Residential (General/Single)
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.01
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

M
Robert Moses Middle SchoolC
Middle · Grades 6–8 · 0.6 mi
E
William E. DeLuca Jr. Elementary SchoolD+
Elementary · Grades KG–5 · 0.7 mi
H
North Babylon High SchoolB-
High · Grades 9–12 · 1.2 mi

District: North Babylon Union Free 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%

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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

Chelsea 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.

  • Worth more than 94% of homes in West Babylon
  • Among the smallest lots in West Babylon

What homes are worth in Riverhead 11901

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

This home
$349K$1.8M

This home is worth more than 78% of homes in Riverhead 11901.

How it measures up in Riverhead 11901

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

Estimated value$808,387
CheaperTypical $613,953Pricier

Pricier than 78% of homes nearby

Lot size560 ft²
SmallerTypical 0.31 acBigger

Smaller than almost all homes nearby

How Chelsea Ave ranks against every home in each area.
MeasureThis homeWest BabylonRiverhead 11901Suffolk County
Estimated valuepricier than$808,38794% of homes78% of homes67% of homes
Lot sizebigger than560 ft²almost no homesalmost no homesalmost no homes

About Chelsea Ave

How much is Chelsea Ave, Riverhead, NY worth?

The TopHap Estimate for Chelsea Ave, Riverhead, NY is $808,387 as of Aug 30, 2026. The likely range is $754,951 to $861,823. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did Chelsea Ave, Riverhead, NY last sell?

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

What schools serve Chelsea Ave, Riverhead, NY?

Chelsea Ave, Riverhead, NY is assigned to Robert Moses Middle School (middle), rated C; William E. DeLuca Jr. Elementary School (elementary), rated D+; North Babylon High School (high), rated B-. All sit in North Babylon Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

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

Among the 9,718 homes in Riverhead 11901, it is worth more than 78% of them ($808,387 against a typical $613,953) and its lot is bigger than almost none of them (560 ft² against a typical 0.31 ac). Measured against all of Suffolk County, it is worth more than 67% 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 Chelsea Ave, Riverhead, NY?

The 2024 property tax bill for Chelsea Ave, Riverhead, NY was $65. The county assessed it at $20.

Closest homes

More homes in Riverhead 11901

Assigned schools

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