1 Adelphi St, Islip, NY 11751
Property image
Property image
OFF MARKET

$688,000

Trulia Estimate
  • 1 Bed
  • 1 Bath

1 Adelphi St, Islip, NY 11751

Est. Refi. Payment $4,846/mo*
Refinance Your Home
Currently Off Market - Sold Jun 17, 2021 for $435,000

Home Value

Trulia Estimate
$688K
Since last month
Decreased$800 (-0.1%)
Since last year
Increased$45K (+7%)
Since last sale
Increased$253K (+58.2%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +48% in the last 10 years
MonthEstimated value
2026
October 2026$688K
September 2026$687K
August 2026$689K
July 2026$678K
June 2026$689K
May 2026$668K
April 2026$659K
March 2026$657K
February 2026$646K
January 2026$648K
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
11 Doxsee Place, Islip, NY
0.34
Single-Family Home
$610,000
02/24/26
3
1
2,252
191 Smith Avenue, Islip, NY
0.33
Single-Family Home
$633,500
04/09/26
2
1
1,112
120 Church Avenue, Islip, NY
0.33
Single-Family Home
$775,000
10/27/25
2
1.5
2,498
149 Union Avenue, Islip, NY
0.51
Single-Family Home
$685,000
05/04/26
3
1
1,539
187 Smith Avenue, Islip, NY
0.33
Single-Family Home
$538,000
01/22/26
3
2
-
8 Adelphi Street, Islip, NY
0.05
Single-Family Home
$1,205,000
07/15/26
5
3.5
2,448
140 Ocean Avenue, Islip, NY
0.16
Single-Family Home
$835,000
01/27/26
4
2.5
2,676
5 Athasca Road, Islip, NY
0.50
Single-Family Home
$600,000
05/28/26
3
2
-
287 Cedar Avenue, Islip, NY
0.22
Single-Family Home
$950,000
03/25/26
4
2
2,662
147 Church Avenue, Islip, NY
0.31
Single-Family Home
$775,000
09/02/26
4
2
1,955

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
1 Adelphi St #1, Islip, NY 11751
0.00
-
1
1
-
Off Market
279 Ocean Ave, Islip, NY 11751
0.02
$891,100
Studio
-
-
Off Market
279 S Ocean Ave, Islip, NY 11751
0.02
$735,800
3
2
-
Off Market
7A Adelphi St #7A, Islip, NY 11751
0.02
-
1
1
500
Off Market
7 Adelphi Street, Islip, NY 11751
0.03
$845,900
5
2
1,696
Off Market
22 Grace Ct, Islip, NY 11751
0.03
$747,500
Studio
-
-
Off Market
277 Ocean Avenue, Islip, NY 11751
0.03
$814,800
4
2
2,000
Off Market
20 Grace Ct, Islip, NY 11751
0.04
$839,700
Studio
-
-
Off Market
275 Ocean Ave, Islip, NY 11751
0.05
$688,200
3
2
1,614
Off Market
8 Adelphi Street, Islip, NY 11751
0.05
$1,205,000
5
3.5
2,448
Recently Sold
18 Grace Ct, Islip, NY 11751
0.05
$839,900
Studio
-
-
Off Market
278 Ocean Ave, Islip, NY 11751
0.06
$1,013,900
Studio
-
-
Off Market
25 Grace Ct, Islip, NY 11751
0.06
$813,100
Studio
-
-
Off Market
273 Ocean Ave, Islip, NY 11751
0.06
$843,700
4
2.5
-
Off Market
23 Grace Ct, Islip, NY 11751
0.06
$732,500
Studio
-
-
Off Market
16 Grace Ct, Islip, NY 11751
0.06
$870,600
3
2
-
Off Market
19 Grace Ct, Islip, NY 11751
0.07
$985,600
4
3
-
Off Market
283 Ocean Ave, Islip, NY 11751
0.07
$1,822,700
6
5.5
5,400
Off Market
17 Grace Ct, Islip, NY 11751
0.07
$781,000
3
2
-
Off Market
272 Ocean Avenue, Islip, NY 11751
0.08
$1,525,000
6
5.5
3,438
Recently Sold

Local Information

  • Map ViewExplore the area around 1 Adelphi St.
  • Schools2 Elementary Schools1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1950
0.36 acre lot

About this House

Beautiful recently renovated apartment South of Main in Amazing Islip! Walk to water. Must see!!

Renter to split electric with upstairs (approx $100/mo). Renter to pay First month, last month + 1 month security due on lease signing.
1 Adelphi St, Islip, NY 11751 is a 1 bedroom, 1 bathroom single-family home built in 1950. It last sold for $435,000 on Jun 17, 2021. More recently, it was listed as a rental in June 2022 with an asking price of $2,000 per month. That rental listing was removed on July 22, 2022. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $688,000, with a rent estimate of $2,209/month.

Home Details for 1 Adelphi St

Property Information

Year Built
Year Built: 1950
Property Type / Style
Property Type: Single Family Home

Exterior Features

Exterior Home Features
Lawn
Parking & Garage
Parking: Off Street

Community

Units in Building: 1

Lot Information

Lot Area: 0.36 acres

Price and Tax history

DateEventPrice
Jul 22, 2022
Source: Zillow Rental Manager
ListingRemoved
Jun 14, 2022
Source: Zillow Rental Manager
Listed For Rent
$2,000
Jun 17, 2021
Source: N/A
Sold
$435,000
Jan 17, 2020
Source: Agent Provided
ListingRemoved
$489,000
Dec 21, 2019
Source: Agent Provided
PriceChange
$489,000
Price decreased by 2%

Market trends in Islip

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
43
7MoM

Around this home

What Locals Say about Islip

This October

Trick-or-Treat Score

Built from what locals say about this neighborhood.
  • 86% say there's holiday spirit
  • 65% say neighbors are friendly
  • 59% say there are sidewalks
Trulia Trick or TreatStart Ghost Hunt
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

LGBTQ Local Legal Protections

Frequently asked questions about 1 Adelphi St

  • What is 1 Adelphi St estimated to be worth?
    Trulia's estimated value for 1 Adelphi St in Islip, NY is $688,000.
  • What is the price history for 1 Adelphi St?
    1 Adelphi St in Islip, NY last sold for $435,000 in June 2021.
  • 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 1 Adelphi St?
    The lot at 1 Adelphi St in Islip, NY is about 0.36 acres (15,681 sq ft).
  • Does 1 Adelphi St have parking?
    Yes, 1 Adelphi St in Islip, NY has on-site parking.

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