21 Walnut Ave, Setauket, NY 11733
Property image
Property image
OFF MARKET

$767,400

Trulia Estimate
  • 3 Beds
  • 2 Baths

21 Walnut Ave, Setauket, NY 11733

Poquott
Est. Refi. Payment $5,134/mo*
Refinance Your Home
Currently Off Market - Sold Sep 27, 2021 for $585,000

Home Value

Trulia Estimate
$767K
Since last month
Increased$1K (+0.1%)
Since last year
Increased$36K (+4.9%)
Since last sale
Increased$184K (+31.4%)
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 +87% in the last 10 years
MonthEstimated value
2026
August 2026$769K
August 2026$767K
July 2026$768K
June 2026$767K
May 2026$757K
April 2026$753K
March 2026$742K
February 2026$738K
January 2026$723K
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
2 Walnut Avenue, Setauket, NY
0.10
Single-Family Home
$985,000
03/23/26
3
3
2,100
23 Cedar Avenue, Setauket, NY
0.22
Single-Family Home
$730,000
10/14/25
3
2.5
1,554
66 Chestnut Avenue, Setauket, NY
0.03
Single-Family Home
$520,000
04/29/26
2
1
675
5 Cedar Avenue, Setauket, NY
0.15
Single-Family Home
$425,000
10/22/25
1
1
654
126 Foxdale Lane, Port Jefferson, NY
0.73
Single-Family Home
$665,000
07/09/26
3
2
1,150
22 Braemer Road, Setauket, NY
0.74
Single-Family Home
$900,000
07/30/26
3
2
1,712
3 Silver Beech Court, Setauket, NY
0.34
Single-Family Home
$922,000
10/30/25
3
2.5
2,741
123 Foxdale Lane, Port Jefferson, NY
0.74
Single-Family Home
$702,895
07/17/26
3
2
1,350
12 Bridle Path Lane, Port Jefferson, NY
0.63
Single-Family Home
$745,000
09/19/25
3
2
2,127
15 Chestnut Ave, Setauket, NY
0.24
Single-Family Home
$1,600,000
12/03/25
2
1
-

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
18 Walnut Avenue, Setauket, NY 11733
0.03
$949,000
3
2
2,250
For Sale
66 Chestnut Avenue, Setauket, NY 11733
0.03
$520,000
2
1
675
Recently Sold
64 Chestnut Avenue, Setauket, NY 11733
0.04
-
4
1
-
Off Market
2 Walnut Avenue, Setauket, NY 11733
0.10
$985,000
3
3
2,100
Recently Sold
103 Chestnut Avenue, Setauket, NY 11733
0.09
$833,300
3
1
-
Off Market
2 Cedar Avenue, Setauket, NY 11733
0.14
$1,353,000
4
4
3,200
Off Market
7 Cedar, Setauket, NY 11733
0.15
$425,000
2
1
528
Recently Sold
5 Cedar Avenue, Setauket, NY 11733
0.15
$457,200
1
1
654
Off Market
10 Maple Avenue, Setauket, NY 11733
0.16
$860,000
3
2
2,012
Off Market
33A Chestnut Avenue, East Setauket, NY 11733
0.15
$1,237,300
5
5.5
-
Off Market
9 Shen Court, Setauket, NY 11733
0.18
$1,615,500
6
3.5
4,000
Off Market
40 Chestnut Ave, Setauket, NY 11733
0.16
$899,000
3
3.5
1,635
Off Market

Local Information

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

Home Highlights

Single-Family Home
Built in 1950

About this House

Awesome 3 Bedroom, 2 Full Bath Rustic Charm Located A Stones Throw Away From Walnut Street Beach. Cozy And Inviting With Newer Windows, New Roof And Gutters, .22 Acre Property W/Oversized Screened-In Back Porch Overlooking Private Backyard. Village Amenities Include Beach and Tennis.
21 Walnut Ave, Setauket, NY 11733 is a 3 bedroom, 2 bathroom single-family home in Poquott, built in 1950. It last sold for $585,000 on Sep 27, 2021. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $767,400, with a rent estimate of $4,460/month.

Home Details for 21 Walnut Ave

Property Information

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

Exterior Features

Exterior Home Features
Porch

Community

Units in Building: 1

Lot Information

Lot Area: 9583 sqft

Price and Tax history

DateEventPrice
Sep 27, 2021
Source: OneKey® MLS as distributed by MLS GRID #L3306755
Sold
$585,000
May 19, 2021
Source: OneKey® MLS as distributed by MLS GRID #3306755
Pending
$550,000
Apr 27, 2021
Source: OneKey® MLS as distributed by MLS GRID #3306755
PriceChange
$550,000
Price decreased by 6%
Apr 26, 2021
Source: OneKey® MLS as distributed by MLS GRID #3306755
Listed For Sale
$585,000
Oct 20, 2017
Source: OneKey® MLS as distributed by MLS GRID #L2918916
Sold
$400,000

Market trends in Setauket

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
60
3MoM

Around this home

Neighborhood Overview

Poquott
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Poquott

At least 3 Trulia users voted on each feature.

  • 100 % Say parking is easy

  • 100 % Say people would walk alone at night

  • 88 % Say car is needed

  • 83 % Say there's holiday spirit

  • 83 % Say there's wildlife

  • 80 % Say it's dog friendly

  • 80 % Say they plan to stay for at least 5 years

  • 69 % Say neighbors are friendly

  • 63 % Say streets are well-lit

  • 60 % Say kids play outside

  • 46 % Say it's quiet

  • 38 % Say yards are well-kept

  • 33 % Say there are community events

  • 33 % Say it's walkable to grocery stores

  • 33 % Say there are sidewalks

  • 33 % Say it's walkable to restaurants

Sourced by Trulia users. Learn more about our methodology.
  • Chriscona
    "Great neighborhood. We love it here. Scenic and very cozy and quaint. The residents are very kind and take great care of their homes. I always get the feeling that people are very happy here, and are grateful to live here. People smile and say hello as you walk by. It’s a warm and welcoming neighborhood."
    9
    Flag
  • Gregory B.
    "Great area on the north shore. Minutes to beaches, water activities, close to SUNY StonyBrook, Port Jefferson Village, two train stations, the Cross Island Ferry (to Connecticut) many restaurants, nightclubs, activities, historic village... something for everyone."
    1
    Flag
  • Iwinnit
    "This is a high end area. All properties have mooring rights and access to tennis courts. The residents are MDs, JDs, University professors and other high earning professionals."
    3
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 21 Walnut Ave

  • What is 21 Walnut Ave estimated to be worth?
    Trulia's estimated value for 21 Walnut Ave in Setauket, NY is $767,400.
  • What is the price history for 21 Walnut Ave?
    21 Walnut Ave in Setauket, NY last sold for $585,000 in September 2021.
  • Is Setauket a buyer's or seller's market?
    Setauket is currently a balanced market, based on recent for-sale activity.
  • What are the closest schools to 21 Walnut Ave?
    The closest schools to 21 Walnut Ave in Setauket, NY are Paul J Gelinas Junior High School (rated 7/10), Setauket Elementary School (Pre-K, rated 6/10), Ward Melville Senior High School (rated 10/10).
  • How big is the lot at 21 Walnut Ave?
    The lot at 21 Walnut Ave in Setauket, NY is about 0.22 acres (9,583 sq ft).

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