21 Walnut Ave, Patchogue, NY 11772
Property image
Property image
OFF MARKET

21 Walnut Ave
Patchogue, NY 11772

North Patchogue
  • 4 Beds
  • 2 Baths

$604,500

Trulia Estimate
as of Aug 9, 2026
Est. Refi. Payment $4,016/mo*
Refinance Your Home

$604,500

Trulia Estimate
as of Aug 9, 2026
Est. Refi. Payment $4,016/mo*
Refinance Your Home
4 Beds
2 Baths

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

Property Type
Single-Family Home
Year Built
1951

About this House

Don't miss out on the great opportunity to live in Patchogue. Diamond in the rough. 4 Bedroom, 2 full Bath. Original Harwood Floors, moldings throughout. Home was mechanically maintained, just come and put your own design in it. Siding and windows aprox 10 years old. Cesspool with overflow aprox 10 years old. This home is situated on a quiet street conveniently located within mins to Main Street Patchogue which boasts shops, entertainment and restaurants.
21 Walnut Ave, Patchogue, NY 11772 is a 4 bedroom, 2 bathroom single-family home in North Patchogue, built in 1951. It last sold for $420,000 on Dec 1, 2022. It is currently off market. The Trulia Estimate is $604,500, with a rent estimate of $3,712/month.

Home Details for 21 Walnut Ave

Interior Features

Heating & Cooling
Heating: OilHeating Fuel: Oil
Appliances & Utilities
DryerWasher
Levels, Entrance, & Accessibility
Floors: Carpet, Hardwood

Property Information

Year Built
Year Built: 1951
Property Type / Style
Property Type: Single Family Home

Exterior Features

Exterior Home Features
Exterior: Vinyl

Community

Units in Building: 1

Lot Information

Lot Area: 8712 sqft

Price History for 21 Walnut Ave

DatePriceEventSource
12/01/2022$420,000Sold
N/A
08/17/2022$410,000Sold
OneKey® MLS as distributed by MLS GRID #L3356443
06/22/2022$359,999PendingNY State MLS #11033826
05/19/2022$359,999ContingentNY State MLS #11033826
05/18/2022$359,999PendingOneKey® MLS as distributed by MLS GRID #3356443
04/21/2022$359,999Listed For SaleOneKey® MLS as distributed by MLS GRID #3356443
11/10/2021ListingRemovedNY State MLS
11/01/2021$349,999Listed For SaleOneKey® MLS as distributed by MLS GRID #3356443

Market trends in Patchogue

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$611K
$13.75KMoM
Sale-to-List Price
102.8%
1.5%MoM
Price per sq ft
$387
$3MoM
Available listings
109
3MoM
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Property Tax and Assessment

Year2025
Tax
Assessment$479,166
Home facts updated by county records

Comparable Sales for 21 Walnut Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
31 Walnut Avenue, Patchogue, NY
0.05
Single-Family Home
$540,000
04/21/26
3
2
1,596
9 Walnut Avenue, Patchogue, NY
0.06
Single-Family Home
$750,000
09/09/25
3
2
2,215
371 N Ocean Avenue, Patchogue, NY
0.25
Single-Family Home
$500,000
10/08/25
4
2
1,531
48 Vernon Street, Patchogue, NY
0.33
Single-Family Home
$695,000
03/09/26
4
2
2,200
32 Terry Road, Patchogue, NY
0.32
Single-Family Home
$500,000
09/29/25
3
1.5
1,296
114 Monroe Avenue, Patchogue, NY
0.43
Single-Family Home
$635,000
04/16/26
4
2
2,190
216 Jayne Avenue, Patchogue, NY
0.21
Single-Family Home
$610,000
02/03/26
3
2.5
2,217
55 Terry Road, Patchogue, NY
0.34
Single-Family Home
$595,000
02/11/26
3
2
1,150
15 Bridge Avenue, Patchogue, NY
0.39
Single-Family Home
$584,000
10/09/25
3
2
1,100
155 Jayne Avenue, Patchogue, NY
0.28
Single-Family Home
$620,000
06/26/26
3
2
1,800

Nearby homes

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Assigned Schools

These are the assigned schools for 21 Walnut Ave.
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.

Neighborhood Overview

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

What Locals Say about North Patchogue

At least 42 Trulia users voted on each feature.

  • 91 % Say it's dog friendly

  • 87 % Say yards are well-kept

  • 82 % Say car is needed

  • 81 % Say there's holiday spirit

  • 75 % Say kids play outside

  • 66 % Say parking is easy

  • 64 % Say people would walk alone at night

  • 60 % Say neighbors are friendly

  • 60 % Say they plan to stay for at least 5 years

  • 58 % Say it's quiet

  • 53 % Say streets are well-lit

  • 51 % Say it's walkable to grocery stores

  • 48 % Say there's wildlife

  • 43 % Say there are community events

  • 42 % Say there are sidewalks

  • 42 % Say it's walkable to restaurants

Sourced by Trulia users. Learn more about our methodology.
  • Vbjbc498zd
    "Reasonable , but there’s a lot of people on Long Island so the traffic can be crazy at times since majority of the people who live here have vehicles "
    0
    Flag
  • Trulia User
    "Dog owners would like that there are plenty of open areas for dogs to play locally that can be reached within reasonable walking distance."
    0
    Flag
  • Trulia User
    "Nice quiet little neighborhood with a bunch of nice respectful people. There is not a lot of through traffic and people are very friendly to each other also "
    1
    Flag
  • Michellegarnettcarrick
    "Alive at Five, Midnight on Main, Parades with Santa, on St Paddy’s Day, etc. Breakfast with the Easter Bunny at the firehouse. Breweries, eateries, pubs, bars, restaurants on mainstreet in addition to a VINYL RECORD SHOP, Theatre AND independent-movie cinema (not to be confused). Bowling Alley, Archery, walking tours, cycling, Fire Island Ferry, Ryder Sports Fields Complex, waterfront park with playground, even convenience stores, fast food and box stores near by. It’s a GREAT PLACE TO LIVE, for single parents, singles (blue or white collar),newlyweds, married professionals,married with families, retirees, families with seniors (new assisted living communities). There is something for EVERYBODY here in Patchogue, NY!!!"
    0
    Flag
  • Lauren3173
    "Great neighborhood to live and raise a family. The schools are really good and the community is great. "
    0
    Flag
  • Ssheehan89
    "patchogue is a unique mixture of suburban town and tourist bar/food scene. patchogue village has many places to eat and be merry while the town itself is mostly houses with yards"
    1
    Flag
  • Lauren3173
    "I live in this neighborhood 13 years, both of my children graduated from the local high school. The people in this town are amazing. "
    0
    Flag
  • Lareinapr75
    "Great community for families. Lots of activities, festivals, and fairs. Parades are lovely. Restaurants are delicious."
    0
    Flag
  • Lorenzo L.
    "Has changed for the better as far as beautifying A lot of drinking and partying in town especially on weekends "
    0
    Flag
  • Andreasew
    "Great walks through the Brookhaven owned woods in our neighborhood. Our dogs ove walking through them. There are two very nice trails near us"
    1
    Flag
  • John M.
    "Patchogue is a town with deep roots in the past, while looking towards the future. The strives to be family friendly, and usually succeeds ."
    0
    Flag
  • Andreasew
    "Elementary school a are great. Middle schools okay High school is better because of new superintendent great man"
    0
    Flag
  • Lori E. P.
    "There are many opportunities for young people to grow and explore, from ocean beaches to parks and horse back riding. Patchogue offers music and art lessons too! I grew up in this town and it's better than ever!"
    0
    Flag
  • Lori E. P.
    "well cared for neighborhood with slightly larger parcels. it's close to town and shopping, there are plenty of open spaces and parks nearby "
    1
    Flag

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Apartments for Rent

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Explore by feature - Pet Friendly

20 pet-friendly rentals in Patchogue, NY

Explore by feature - Air Conditioning

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Explore by feature - Pool

6 rentals with a pool in Patchogue, NY

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Explore by feature - Outdoor Space

9 rentals with an outdoor space in Patchogue, NY

Homes for sale near 21 Walnut Ave

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Off Market Homes Near 21 Walnut Ave

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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 Patchogue, NY is $604,500.
  • What is the price history for 21 Walnut Ave?
    21 Walnut Ave in Patchogue, NY last sold for $420,000 in December 2022.
  • Is Patchogue a buyer's or seller's market?
    Patchogue is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in Patchogue?
    The median sale price in Patchogue is $611K. That is up $13.75K from the prior month.
  • Does 21 Walnut Ave have laundry facilities?
    Yes, 21 Walnut Ave in Patchogue, NY has in-unit laundry.
  • How big is the lot at 21 Walnut Ave?
    The lot at 21 Walnut Ave in Patchogue, NY is about 0.20 acres (8,712 sq ft).