20 40th St, Islip, NY 11751
OFF MARKET

20 40th St
Islip, NY 11751

  • 1 Bed
  • 1 Bath

$559,900

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $3,725/mo*
Refinance Your Home

$559,900

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $3,725/mo*
Refinance Your Home
1 Bed
1 Bath

Local Information

  • Map ViewExplore the area around 20 40th St.
  • Schools2 Elementary Schools1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1960

About this House

A Cozy Apartment On A Quiet Area Close To All Stores And Sccools
20 40th St, Islip, NY 11751 is a 1 bedroom, 1 bathroom single-family home built in 1960. It last sold for $478,950 on Apr 28, 2006. It is currently off market. The Trulia Estimate is $559,900, with a rent estimate of $1,892/month.

Home Details for 20 40th St

Property Information

Year Built
Year Built: 1960
Property Type / Style
Property Type: Single Family Home

Community

Units in Building: 1

Lot Information

Lot Area: 125 sqft

Price History for 20 40th St

DatePriceEventSource
12/08/2007$875ListingRemovedAgent Provided
11/16/2007$875Listed For SaleAgent Provided
04/28/2006$478,950Sold
N/A
08/19/1994$135,000Sold
N/A
11/09/1993$5,000Sold
N/A

Market trends in Islip

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
42
4MoM
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Property Tax and Assessment

Year2025
Tax
Assessment$42,600
Home facts updated by county records

Comparable Sales for 20 40th St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
35 40th Street, Islip, NY
0.08
Single-Family Home
$690,000
12/04/25
3
2
1,834
12 46th Street, Islip, NY
0.36
Single-Family Home
$610,000
12/23/25
3
1
1,050
33 41st Street, Islip, NY
0.04
Single-Family Home
$757,000
08/12/25
4
2
2,000
66 40th Street, Islip, NY
0.25
Single-Family Home
$520,000
06/26/26
3
2
1,374
65 39th Street, Islip, NY
0.09
Single-Family Home
$665,000
06/18/26
3
2.5
1,208
29 Franklin Street, Islip, NY
0.36
Single-Family Home
$650,000
07/06/26
4
1
1,215
1120 Spur Drive S, Bay Shore, NY
0.41
Single-Family Home
$550,000
12/03/25
4
1
1,200
17 Windsor Street, Islip, NY
0.27
Single-Family Home
$610,000
06/22/26
3
1.5
1,000
25 45th Street, Islip, NY
0.28
Single-Family Home
$620,000
05/26/26
3
2
1,246
6 Oxford Street, Islip, NY
0.18
Single-Family Home
$720,000
04/30/26
4
2
2,208

Nearby homes

Get a sense of prices in the area by checking nearby homes.
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Assigned Schools

These are the assigned schools for 20 40th St.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

What Locals Say about Islip

At least 118 Trulia users voted on each feature.

  • 90 % Say parking is easy

  • 90 % Say it's dog friendly

  • 88 % Say car is needed

  • 86 % Say there's holiday spirit

  • 85 % Say yards are well-kept

  • 75 % Say people would walk alone at night

  • 73 % Say kids play outside

  • 65 % Say neighbors are friendly

  • 64 % Say it's quiet

  • 63 % Say it's walkable to restaurants

  • 62 % Say streets are well-lit

  • 62 % Say they plan to stay for at least 5 years

  • 59 % Say there are sidewalks

  • 59 % Say it's walkable to grocery stores

  • 59 % Say there's wildlife

  • 49 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Michellereid2323
    "Family-oriented neighborhood. Main Street is charming, walkable, and dotted with boutiques, cafes, and diners."
    0
    Flag
  • Matt Classie
    "Street fairs, events at Brookwood Hall during holidays. Theres lots to do in the town of Islip. Bats & Brews is a great event."
    0
    Flag
  • Yen160107
    "I have kids that play in the front yard and they step on the dog feces that they left behind. Also I have signs that say “kids at play” but they do not care"
    0
    Flag
  • Trulia User
    "The drive is horrible and the traffic which is 300 feet from your front door is deafening! A ten lane super hwy and that’s what you wake up to at 4:30 am every day ! Or you can take the train a mile away which you can also here every morning blasting it’s way to islip train station . "
    0
    Flag
  • Trulia User
    "Well celebrate almost all the events soccer games good school very friendly neighborhoods good shopping center "
    1
    Flag
  • Jamal G.
    "this neighborhood is a great place to live there are restaurants in the mall nearby good schools and they are also close"
    14
    Flag
  • Stephen B.
    "The taxes are very high here for the school. Bay Shore schools are just as good or better and the taxes are much lower. "
    9
    Flag
  • Michael .
    "Good! I work in the city and take the LIRR. The islip station has free parking and plenty of spaces."
    1
    Flag
  • Monmona
    "you need to have a car to commute around. around. if you live close enough to the Long Island Railroad, then you can walk to the station and take the train from there."
    1
    Flag
  • Fldsetter
    "I grew up here and actually bought my childhood home back after living in another part of the country . Beaches are close , most folks keep there homes well maintained . There are lot of children here and the schools are second to none . I wish the town would replace the roads here , and take better care of there pubic areas ! But let the young folks moving in fight that fight ! "
    1
    Flag
  • Djhafner132
    "5 min to train station.the neighbors are friendly.i am an avid fisherman and two fishing piers are less than a mile away.the streets are well treed and maintained "
    0
    Flag
  • Djhafner132
    "I lived here since 1973.The homes are well kept and neighbors are friendly.the town dock is an easy walk with great fishing the streets are well maintained.All in all a great place to live"
    0
    Flag
  • Djhafner132
    "Parades block parties great fishing close by.great south of montauk location.Great place to raise a family "
    0
    Flag
  • Ricktssf
    "I work locally, so I can walk to work. the train station to NYC is only 4 blocks away. easy commute on the train. "
    2
    Flag
  • G.Greco
    "I've made Islip my home since 1980. Yards are well kept, the streets are maintained, paved and cleaned regularly. The school district is good. It's a good place to live and raise a family. This area south of Montauk is very desirable"
    16
    Flag
  • Tannuramees
    "parades, fairs, shops close by, farmers market, good schools, nice neighborhood, school events, town events"
    1
    Flag
  • Catherine M.
    "I have lived here for 18 years and for the most part it’s a good area. I am not a huge fan of the school district but it’s not horrible either ."
    11
    Flag
  • Stefbartoli
    "Dog friendly neighborhood! People walk their dogs around regularly. Neighbors look out for each other’s pets as well. "
    1
    Flag
  • Tyase930
    "Quiet respectful neighbors. Walking distance to stores. Lots of new businesses and new development s."
    0
    Flag
  • Tony H.
    "I live in this neighborhood for 2 years so far people are very friendly, there's always parking, people walk their dogs at night and exercise regularly. It's pretty cool !!!"
    0
    Flag
  • Fldsetter
    "Crappy roads / rats / compact floresant lights instead of LED ( someone got paid off ) no trees left due to disease , and the town is not planting any ! Highway noise 10 lanes now on Sunrise HWY - RT27 . No plans for a sound wall ??? I guess we are lower class here in Islip . Airplane and helicopters all day and night fly over head ,, isn’t there a bay or ocean they can fly over then go straight up Lakeland Blvd to the airport ???? I will eave as soon as I find a house elsewhere and not in NY "
    0
    Flag
  • Ricktssf
    "I'm 17 years living in Islip. a little great Hamlet along the great South Bay. Town of Islip is much larger, but this is a Suburban area. "
    0
    Flag

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Apartments for Rent

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Explore by feature - Air Conditioning

7 rentals with air conditioning in Islip, NY

Homes for sale near 20 40th St

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Off Market Homes Near 20 40th St

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Frequently asked questions about 20 40th St

  • What is 20 40th St estimated to be worth?
    Trulia's estimated value for 20 40th St in Islip, NY is $559,900.
  • What is the price history for 20 40th St?
    20 40th St in Islip, NY last sold for $478,950 in April 2006.
  • Is Islip a buyer's or seller's market?
    Islip is currently a seller's market, based on recent for-sale activity.
  • What do residents say about Islip?
    Residents describe Islip, NY as easy to park in, dog-friendly, and well-kept. Most residents say you need a car. See recently sold homes in Islip, NY.
  • How big is the lot at 20 40th St?
    The lot at 20 40th St in Islip, NY is about 0 acres (125 sq ft).