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Single Family ResidenceResidential
$478,623$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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $175,000 on Nov 18, 2014

21 HILLSIDE AVE

ROCKY POINT, NY 11778
2
Beds
1
Baths
1,094 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1939
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$479K
$456K low$501K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$175,000 · Nov 18, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,827 (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.$1,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$395,834

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.18
HeatingThe type of heating system in the home.Radiant
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

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
Rocky Point Middle SchoolB+
Middle · Grades 6–8 · 1.5 mi
H
Rocky Point High SchoolB+
High · Grades 9–12 · 1.6 mi
E
Frank J. Carasiti Elementary School
Elementary · Grades KG–2 · 1.8 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%

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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

21 Hillside 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 92% of homes in Suffolk County
  • Smaller than 83% of homes in Suffolk County
  • Has a smaller lot than 76% of homes in Suffolk County
  • Older than 93% of homes in Suffolk County

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
$356K$1.3M

This home is worth more than 24% 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$478,623
CheaperTypical $554,830Pricier

Pricier than 24% of homes nearby

Price per ft²$437
CheaperTypical $397Pricier

Pricier than 62% of homes nearby

Living area1,094 ft²
SmallerTypical 1,397 ft²Bigger

Bigger than 32% of homes nearby

Lot size0.18 ac
SmallerTypical 0.23 acBigger

Bigger than 33% of homes nearby

Year built1939
OlderTypical 1961Newer

Newer than 17% of homes nearby

How 21 Hillside Ave ranks against every home in each area.
MeasureThis homeRocky Point 11778Suffolk County
Estimated valuepricier than$478,62324% of homes8% of homes
Price per ft²pricier than$43762% of homes58% of homes
Living areabigger than1,094 ft²32% of homes17% of homes
Lot sizebigger than0.18 ac33% of homes24% of homes
Year builtnewer than193917% of homes7% of homes

About 21 Hillside Ave

How much is 21 Hillside Ave, Rocky Point, NY worth?

The TopHap Estimate for 21 Hillside Ave, Rocky Point, NY is $478,623 as of Sep 24, 2026. The likely range is $456,338 to $500,908. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Hillside Ave, Rocky Point, NY last sell?

21 Hillside Ave, Rocky Point, NY last sold on Nov 18, 2014 for $175,000, according to the county's recorded deed.

How big is 21 Hillside Ave, Rocky Point, NY?

21 Hillside Ave, Rocky Point, NY has 2 bedrooms, 1 bathrooms, 1,094 square feet of living space and a 0.18-acre lot.

When was 21 Hillside Ave, Rocky Point, NY built?

21 Hillside Ave, Rocky Point, NY was built in 1939, making it 87 years old. It is a ranch home. The building has 1 story.

What schools serve 21 Hillside Ave, Rocky Point, NY?

21 Hillside Ave, Rocky Point, NY is assigned to Rocky Point Middle School (middle), rated B+; Rocky Point High School (high), rated B+; 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 21 Hillside Ave, Rocky Point, NY compare to other homes in Rocky Point 11778?

Among the 4,934 homes in Rocky Point 11778, it is worth more than 24% of them ($478,623 against a typical $554,830), its price per square foot is higher than 62% of them ($437 against a typical $397), it is bigger than 32% of them (1,094 ft² against a typical 1,397 ft²), its lot is bigger than 33% of them (0.18 ac against a typical 0.23 ac) and it is newer than 17% of them (1939 against a typical 1961). Measured against all of Suffolk County, it is worth more than 8% 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 21 Hillside Ave, Rocky Point, NY?

The 2024 property tax bill for 21 Hillside Ave, Rocky Point, NY was $8,827. The county assessed it at $1,900.

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More homes in Rocky Point 11778

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