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Single Family ResidenceResidential
$837,149$345 / 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 94How 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
Last sold for $1,070,000 on Aug 4, 2026

15 MAGNET ST

STONY BROOK, NY 11790
4
Beds
2
Baths
2,428 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.
0.52 ac
Lot SizeThe size of the land the home sits on, from county records.
1981
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$837K
$784K low$890K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,070,000 · Aug 4, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$17,431 (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.$3,870 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$375
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$3,495
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$806,250

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.0.52
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.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.Waterfront

Transaction History(3)

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
William Sidney Mount Elementary SchoolB-
Elementary · Grades PK–5 · 0.8 mi
M
R.C Murphy Middle SchoolB
Middle · Grades 6–8 · 1.3 mi
H
Ward Melville High SchoolA+
High · Grades 9–12 · 3.8 mi

District: Three Village Central School District

Neighborhood · ZIP 11790These 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.48
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.68

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.25,260
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,234 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$149,478
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$177,584
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

15 Magnet 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 74% of homes in Stony Brook 11790
  • Costs less per square foot than 80% of homes in Stony Brook 11790
  • Bigger than 83% of homes in Suffolk County
  • Has a bigger lot than 78% of homes in Suffolk County
  • Newer than 88% of homes in Stony Brook 11790

What homes are worth in Stony Brook 11790

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

This home
$443K$1.4M

This home is worth more than 74% of homes in Stony Brook 11790.

How it measures up in Stony Brook 11790

The dot is this home. The mark in the middle is the typical home in Stony Brook 11790.

Estimated value$837,149
CheaperTypical $759,197Pricier

Pricier than 74% of homes nearby

Price per ft²$345
CheaperTypical $396Pricier

Pricier than 20% of homes nearby

Living area2,428 ft²
SmallerTypical 1,908 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.52 ac
SmallerTypical 0.37 acBigger

Bigger than 77% of homes nearby

Year built1981
OlderTypical 1966Newer

Newer than 88% of homes nearby

How 15 Magnet St ranks against every home in each area.
MeasureThis homeStony Brook 11790Suffolk County
Estimated valuepricier than$837,14974% of homes70% of homes
Price per ft²pricier than$34520% of homes26% of homes
Living areabigger than2,428 ft²80% of homes83% of homes
Lot sizebigger than0.52 ac77% of homes78% of homes
Year builtnewer than198188% of homes66% of homes

About 15 Magnet St

How much is 15 Magnet St, Stony Brook, NY worth?

The TopHap Estimate for 15 Magnet St, Stony Brook, NY is $837,149 as of Aug 30, 2026. The likely range is $783,805 to $890,493. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15 Magnet St, Stony Brook, NY last sell?

15 Magnet St, Stony Brook, NY last sold on Aug 4, 2026 for $1,070,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 15 Magnet St, Stony Brook, NY?

15 Magnet St, Stony Brook, NY has 4 bedrooms, 2 bathrooms, 2,428 square feet of living space and a 0.52-acre lot.

When was 15 Magnet St, Stony Brook, NY built?

15 Magnet St, Stony Brook, NY was built in 1981, making it 45 years old. It is a colonial home. The building has 2 stories.

What schools serve 15 Magnet St, Stony Brook, NY?

15 Magnet St, Stony Brook, NY is assigned to William Sidney Mount Elementary School (elementary), rated B-; R.C Murphy Middle School (middle), rated B; Ward Melville High School (high), rated A+. All sit in Three Village Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15 Magnet St, Stony Brook, NY compare to other homes in Stony Brook 11790?

Among the 4,997 homes in Stony Brook 11790, it is worth more than 74% of them ($837,149 against a typical $759,197), its price per square foot is higher than 20% of them ($345 against a typical $396), it is bigger than 80% of them (2,428 ft² against a typical 1,908 ft²), its lot is bigger than 77% of them (0.52 ac against a typical 0.37 ac) and it is newer than 88% of them (1981 against a typical 1966). Measured against all of Suffolk County, it is worth more than 70% 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 15 Magnet St, Stony Brook, NY?

The 2024 property tax bill for 15 Magnet St, Stony Brook, NY was $17,431. The county assessed it at $3,870.

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