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Single Family ResidenceResidential
$478,925$675 / 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 Aug 30, 2026

40 ASH ST

CENTRAL ISLIP, NY 11722
0
Baths
710 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.

Valuation

$479K
$454K low$504K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,346 (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.$27,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$20,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$380,282

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.0.23
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
Marguerite L Mulvey SchoolC
Elementary · Grades KG–6 · 0.1 mi
M
Charles a Mulligan Elementary SchoolC-
Middle · Grades KG–6 · 1.0 mi
H
Central Islip Senior High SchoolD+
High · Grades 9–12 · 1.6 mi

District: Central Islip Union Free School District

Neighborhood · ZIP 11722These 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.72
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 100.67

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.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.2%
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.37,500
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,450 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$98,750
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$123,293
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

40 Ash 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 less than 91% of homes in Suffolk County
  • Costs more per square foot than 96% of homes in Central Islip 11722
  • Smaller than 98% of homes in Central Islip 11722
  • Has a bigger lot than 65% of homes in Central Islip 11722
  • Older than 80% of homes in Suffolk County

What homes are worth in Central Islip 11722

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

This home
$410K$764K

This home is worth more than 16% of homes in Central Islip 11722.

How it measures up in Central Islip 11722

The dot is this home. The mark in the middle is the typical home in Central Islip 11722.

Estimated value$478,925
CheaperTypical $549,261Pricier

Pricier than 16% of homes nearby

Price per ft²$675
CheaperTypical $414Pricier

Pricier than 96% of homes nearby

Living area710 ft²
SmallerTypical 1,348 ft²Bigger

Bigger than 2% of homes nearby

Lot size0.23 ac
SmallerTypical 0.19 acBigger

Bigger than 65% of homes nearby

Year built1954
OlderTypical 1965Newer

Newer than 24% of homes nearby

How 40 Ash St ranks against every home in each area.
MeasureThis homeCentral Islip 11722Suffolk County
Estimated valuepricier than$478,92516% of homes9% of homes
Price per ft²pricier than$67596% of homes88% of homes
Living areabigger than710 ft²2% of homes2% of homes
Lot sizebigger than0.23 ac65% of homes39% of homes
Year builtnewer than195424% of homes20% of homes

About 40 Ash St

How much is 40 Ash St, Central Islip, NY worth?

The TopHap Estimate for 40 Ash St, Central Islip, NY is $478,925 as of Aug 30, 2026. The likely range is $453,666 to $504,184. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Ash St, Central Islip, NY last sell?

40 Ash St, Central Islip, NY last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 40 Ash St, Central Islip, NY?

40 Ash St, Central Islip, NY has 710 square feet of living space and a 0.23-acre lot.

When was 40 Ash St, Central Islip, NY built?

40 Ash St, Central Islip, NY was built in 1954, making it 72 years old.

What schools serve 40 Ash St, Central Islip, NY?

40 Ash St, Central Islip, NY is assigned to Marguerite L Mulvey School (elementary), rated C; Charles a Mulligan Elementary School (middle), rated C-; Central Islip Senior High School (high), rated D+. All sit in Central Islip Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40 Ash St, Central Islip, NY compare to other homes in Central Islip 11722?

Among the 8,243 homes in Central Islip 11722, it is worth more than 16% of them ($478,925 against a typical $549,261), its price per square foot is higher than 96% of them ($675 against a typical $414), it is bigger than 2% of them (710 ft² against a typical 1,348 ft²), its lot is bigger than 65% of them (0.23 ac against a typical 0.19 ac) and it is newer than 24% of them (1954 against a typical 1965). Measured against all of Suffolk County, it is worth more than 9% 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 40 Ash St, Central Islip, NY?

The 2024 property tax bill for 40 Ash St, Central Islip, NY was $5,346. The county assessed it at $27,000.

More homes on Ash St

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More homes in Central Islip 11722

Assigned schools

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