21 E Walnut St, Islip, NY 11751
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Property image
OFF MARKET

21 E Walnut St
Islip, NY 11751

  • 3 Beds
  • 1 Bath
  • 2,000 sqft (on 0.45 acres)

$643,600

Trulia Estimate
as of Jul 5, 2026
Est. Refi. Payment $4,281/mo*
Refinance Your Home

$643,600

Trulia Estimate
as of Jul 5, 2026
Est. Refi. Payment $4,281/mo*
Refinance Your Home
3 Beds
1 Bath
2,000 sqft
(on 0.45 acres)

Local Information

  • Map ViewExplore the area around 21 E Walnut St.
  • Schools2 Elementary Schools1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Description

Split level ranch
21 E Walnut St, Islip, NY 11751 is a 3 bedroom, 1 bathroom, 2,000 sqft single-family home built in 1964. It last sold for $485,000 on Jun 15, 2023. It is currently off market. The Trulia Estimate is $643,600, with a rent estimate of $3,775/month.

Home Highlights

Parking
No Info
Outdoor
No Info
HOA
None
Price/Sqft
No Info
Listed
Less than a day ago

Home Details for 21 E Walnut St

Interior Features

Interior Details
BasementNumber of Rooms: 8Types of Rooms: Breakfast Nook, Dining Room, Family Room, Laundry Room, Sun RoomCeiling Fan
Levels, Entrance, & Accessibility
Stories: 2Floors: Carpet, Hardwood, Linoleum Vinyl
Appliances & Utilities
Cable ReadyDishwasherDisposalDryerMicrowaveRefrigeratorWasher
Fireplace & Spa
Fireplace
Windows, Doors, Floors & Walls
Double Paned Windows
Security
Security System

Exterior Features

Exterior Home Features
Roof: AsphaltLawnSprinkler System
Parking & Garage
Parking Spaces: 4

Property Information

Year Built
Year Built: 1964
Property Type / Style
Property Type: Single Family HomeArchitecture: Split-level

Community

Units in Building: 1

Lot Information

Lot Area: 0.45 acres

Price History for 21 E Walnut St

DatePriceEventSource
06/15/2023$485,000Sold
N/A
04/03/2023$485,000Sold
OneKey® MLS as distributed by MLS GRID #L3451430
02/01/2023$449,000PendingOneKey® MLS as distributed by MLS GRID #3451430
01/09/2023$449,000Listed For SaleOneKey® MLS as distributed by MLS GRID #3451430

Market trends in Islip

Last updated May 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
38
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Property Tax and Assessment

Year2025
Tax
Assessment$34,650
Home facts updated by county records

Comparable Sales for 21 E Walnut St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
97 Ironwood Street, Islip, NY
0.11
Single-Family Home
$800,000
11/14/25
4
2
2,114
229 Ferndale Boulevard, Islip, NY
0.11
Single-Family Home
$560,000
06/18/26
3
1
1,000
2 W Walnut Street, Islip, NY
0.10
Single-Family Home
$450,000
03/02/26
3
1
912
84 Cedar Street, Islip, NY
0.15
Single-Family Home
$631,000
02/26/26
3
1
1,300
26 W Cedar Street, Islip, NY
0.23
Single-Family Home
$750,000
09/05/25
4
2
1,872
42 Bittermint Street, Islip, NY
0.32
Single-Family Home
$499,000
07/07/25
3
1
1,198
206 Wilson Boulevard, Islip, NY
0.20
Single-Family Home
$615,000
12/22/25
3
1
1,350
36 Pine Street, Bay Shore, NY
0.15
Single-Family Home
$625,000
06/23/26
3
1
1,008
90 Birch Street, Islip, NY
0.49
Single-Family Home
$573,000
08/26/25
4
1
1,365
87 Whitman Avenue, Islip, NY
0.22
Single-Family Home
$615,000
01/13/26
3
3
1,260

Nearby homes

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Assigned Schools

These are the assigned schools for 21 E Walnut 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

  • 64 % 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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