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Single Family ResidenceResidential
$565,692
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 Jul 14, 2026

3 KNOLL AVE

ROCKY POINT, NY 11778
0
Baths
0.33 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$566K
$526K low$605K high
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.$565,692
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$452,554

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,138 (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.$600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$125,000

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.45 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.33
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.Waterfront

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

M
Rocky Point Middle SchoolD-
Middle · Grades 6–8 · 1.8 mi
H
Rocky Point High SchoolA
High · Grades 9–12 · 1.8 mi
E
Frank J. Carasiti Elementary School
Elementary · Grades KG–2 · 2.0 mi

District: Rocky Point Union Free School District

Neighborhood · ZIP 11778These 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.81
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 100.60

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.12,882
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,613 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$108,349
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,180
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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

3 Knoll 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 less than 79% of homes in Suffolk County
  • Has a bigger lot than 74% of homes in Rocky Point 11778

What homes are worth in Rocky Point 11778

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

This home
$352K$1.4M

This home is worth more than 60% of homes in Rocky Point 11778.

How it measures up in Rocky Point 11778

The dot is this home. The mark in the middle is the typical home in Rocky Point 11778.

Estimated value$565,692
CheaperTypical $534,727Pricier

Pricier than 60% of homes nearby

Lot size0.33 ac
SmallerTypical 0.23 acBigger

Bigger than 74% of homes nearby

How 3 Knoll Ave ranks against every home in each area.
MeasureThis homeRocky Point 11778Suffolk County
Estimated valuepricier than$565,69260% of homes21% of homes
Lot sizebigger than0.33 ac74% of homes57% of homes

About 3 Knoll Ave

How much is 3 Knoll Ave, Rocky Point, NY worth?

The TopHap Estimate for 3 Knoll Ave, Rocky Point, NY is $565,692 as of Jul 14, 2026. The likely range is $526,105 to $605,279. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3 Knoll Ave, Rocky Point, NY last sell?

3 Knoll Ave, Rocky Point, NY last sold on Jan 1, 1900, according to the county's recorded deed.

What schools serve 3 Knoll Ave, Rocky Point, NY?

3 Knoll Ave, Rocky Point, NY is assigned to Rocky Point Middle School (middle), rated D-; Rocky Point High School (high), rated A; Frank J. Carasiti Elementary School (elementary). All sit in Rocky Point Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3 Knoll Ave, Rocky Point, NY compare to other homes in Rocky Point 11778?

Among the 4,920 homes in Rocky Point 11778, it is worth more than 60% of them ($565,692 against a typical $534,727) and its lot is bigger than 74% of them (0.33 ac against a typical 0.23 ac). Measured against all of Suffolk County, it is worth more than 21% 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 3 Knoll Ave, Rocky Point, NY?

The 2024 property tax bill for 3 Knoll Ave, Rocky Point, NY was $1,138. The county assessed it at $600.

Closest homes

More homes in Rocky Point 11778

Assigned schools

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