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Single Family ResidenceResidential
$1,163,380$361 / 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 91How 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

21 DOROTHY ST

NESCONSET, NY 11767
4
Beds
2.5
Baths
3,219 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.
0.46 ac
Lot SizeThe size of the land the home sits on, from county records.
2021
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.2M
$1.1M low$1.3M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$27,819 (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.$10,885 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$460
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$10,425
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,360,625

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.Colonial
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.46
HeatingThe type of heating system in the home.Yes
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.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Tackan Elementary SchoolB-
Elementary · Grades KG–5 · 0.5 mi
M
Great Hollow Middle SchoolB
Middle · Grades 6–8 · 0.6 mi
H
Smithtown High School EastA+
High · Grades 9–12 · 2.4 mi

District: Smithtown Central School District

Neighborhood · ZIP 11767These 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.67
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.71

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
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.14,528
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,469 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$130,103
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$161,310
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 Dorothy St 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 98% of homes in Nesconset 11767
  • Costs less per square foot than 68% of homes in Suffolk County
  • Bigger than 97% of homes in Nesconset 11767
  • Has a bigger lot than 84% of homes in Nesconset 11767
  • Among the newest homes in Nesconset 11767

What homes are worth in Nesconset 11767

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

This home
$441K$1.2M

This home is worth more than 98% of homes in Nesconset 11767.

How it measures up in Nesconset 11767

The dot is this home. The mark in the middle is the typical home in Nesconset 11767.

Estimated value$1,163,380
CheaperTypical $730,917Pricier

Pricier than 98% of homes nearby

Price per ft²$361
CheaperTypical $386Pricier

Pricier than 35% of homes nearby

Living area3,219 ft²
SmallerTypical 2,006 ft²Bigger

Bigger than 97% of homes nearby

Lot size0.46 ac
SmallerTypical 0.32 acBigger

Bigger than 84% of homes nearby

Year built2021
OlderTypical 1971Newer

Newer than almost all homes nearby

How 21 Dorothy St ranks against every home in each area.
MeasureThis homeNesconset 11767Suffolk County
Estimated valuepricier than$1,163,38098% of homes84% of homes
Price per ft²pricier than$36135% of homes32% of homes
Living areabigger than3,219 ft²97% of homes94% of homes
Lot sizebigger than0.46 ac84% of homes72% of homes
Year builtnewer than2021almost all homesalmost all homes

About 21 Dorothy St

How much is 21 Dorothy St, Nesconset, NY worth?

The TopHap Estimate for 21 Dorothy St, Nesconset, NY is $1,163,380 as of Sep 24, 2026. The likely range is $1,057,994 to $1,268,766. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Dorothy St, Nesconset, NY last sell?

21 Dorothy St, Nesconset, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Dorothy St, Nesconset, NY?

21 Dorothy St, Nesconset, NY has 4 bedrooms, 2.5 bathrooms, 3,219 square feet of living space and a 0.46-acre lot.

When was 21 Dorothy St, Nesconset, NY built?

21 Dorothy St, Nesconset, NY was built in 2021, making it 5 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Dorothy St, Nesconset, NY?

21 Dorothy St, Nesconset, NY is assigned to Tackan Elementary School (elementary), rated B-; Great Hollow Middle School (middle), rated B; Smithtown High School East (high), rated A+. All sit in Smithtown Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Dorothy St, Nesconset, NY compare to other homes in Nesconset 11767?

Among the 4,585 homes in Nesconset 11767, it is worth more than 98% of them ($1,163,380 against a typical $730,917), its price per square foot is higher than 35% of them ($361 against a typical $386), it is bigger than 97% of them (3,219 ft² against a typical 2,006 ft²), its lot is bigger than 84% of them (0.46 ac against a typical 0.32 ac) and it is newer than almost all of them (2021 against a typical 1971). Measured against all of Suffolk County, it is worth more than 84% 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 Dorothy St, Nesconset, NY?

The 2024 property tax bill for 21 Dorothy St, Nesconset, NY was $27,819. The county assessed it at $10,885.

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