420 Smith Ave
Islip, NY 11751
- 5 Beds
- 4 Baths
- 4,000 sqft (on 0.46 acres)
5 Beds
4 Baths
4,000 sqft
(on 0.46 acres)
Home Value
Trulia Estimate
$1.29MSince last month
Decreased$62K (-4.6%)Since last year
Increased$33K (+2.6%)Since last sale
Increased$733K (+133.2%)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 +95% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| August 2026 | $1.28M |
| July 2026 | $1.34M |
| June 2026 | $1.31M |
| May 2026 | $1.33M |
| April 2026 | $1.29M |
| March 2026 | $1.3M |
| February 2026 | $1.29M |
| January 2026 | $1.29M |
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 |
|---|---|---|---|---|---|---|---|
0.07 | Single-Family Home | $1,350,000 | 02/10/26 | 4 | 2.5 | 2,598 | |
0.33 | Single-Family Home | $1,205,000 | 07/15/26 | 5 | 3.5 | 2,448 | |
0.12 | Single-Family Home | $1,150,000 | 10/30/25 | 4 | 3 | 2,875 | |
0.17 | Single-Family Home | $950,000 | 03/25/26 | 4 | 2 | 2,662 | |
0.23 | Single-Family Home | $1,110,000 | 05/08/26 | 4 | 2.5 | 2,925 | |
0.26 | Single-Family Home | $1,900,000 | 06/03/26 | 5 | 4 | 5,752 | |
0.40 | Single-Family Home | $2,799,000 | 07/27/26 | 5 | 5.5 | 4,800 | |
0.74 | Single-Family Home | $999,999 | 05/15/26 | 4 | 2.5 | 3,087 | |
0.53 | Single-Family Home | $835,000 | 01/27/26 | 4 | 2.5 | 2,676 | |
0.45 | Single-Family Home | $1,525,000 | 05/22/26 | 6 | 5.5 | 3,438 |
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 |
|---|---|---|---|---|---|---|
0.07 | $1,350,000 | 4 | 2.5 | 2,598 | Recently Sold | |
0.10 | $929,200 | 3 | 3 | 1,900 | Off Market | |
0.12 | $1,150,000 | 4 | 3 | 2,875 | Recently Sold | |
0.17 | $950,000 | 4 | 2 | 2,662 | Recently Sold | |
0.17 | $841,300 | 3 | 1.5 | - | Off Market | |
0.23 | $1,110,000 | 4 | 2.5 | 2,925 | Recently Sold | |
0.26 | $1,900,000 | 5 | 4 | 5,752 | Recently Sold | |
0.29 | $2,131,900 | 5 | 4 | 5,004 | Off Market | |
0.30 | $2,990,000 | 5 | 4 | 5,629 | For Sale | |
0.31 | $1,035,000 | 3 | 2.5 | 2,600 | Recently Sold | |
0.33 | $1,205,000 | 5 | 3.5 | 2,448 | Recently Sold | |
0.33 | $1,150,100 | 4 | 2 | - | Off Market |
Local Information
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
1960
Lot Size
0.46 acres
Living Area
4,000 sqft
Price/Sqft
$323
About this House
Welcome Home And Move Right In To This Fully Customized Spacious Home. Features Include: Hardwood Floors, Skylights, Vaulted Ceilings, Granite, Stainless Steel, Fireplace, Extraordinary Master Suite, In-Ground Pool And Legal Accessory Apartment! All Moments From The Great South Bay. Taxes With Star - $15,409
420 Smith Ave, Islip, NY 11751 is a 5 bedroom, 4 bathroom, 4,000 sqft single-family home built in 1960. It last sold for $550,000 on Jan 4, 2013. It is currently off market. The Trulia Estimate is $1,292,200, with a rent estimate of $5,824/month.
Home Details for 420 Smith Ave
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Year Built Year Built: 1960 |
Property Type / Style Property Type: Single Family Home |
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Interior Details Number of Rooms: 13 |
Fireplace & Spa Fireplace |
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Units in Building: 1 |
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Lot Area: 0.46 acres |
Price and Tax history
| Date | Event | Price |
|---|---|---|
Jan 4, 2013 Source: N/A | Sold | $550,000 |
Mar 19, 2012 Source: Agent Provided | ListingRemoved | $598,000 |
Feb 7, 2012 Source: Agent Provided | PriceChange | $598,000 Price decreased by 6% |
Dec 15, 2011 Source: Agent Provided | PriceChange | $638,000 Price decreased by 4% |
Sep 20, 2011 Source: Agent Provided | Listed For Sale | $668,000 |
Jun 18, 2011 Source: Agent Provided | ListingRemoved | $677,000 |
Mar 25, 2011 Source: Agent Provided | PriceChange | $677,000 Price decreased by 3% |
Dec 19, 2010 Source: Agent Provided | Listed For Sale | $699,000 |
Oct 28, 2010 Source: Agent Provided | ListingRemoved | $729,000 |
Jan 31, 2010 Source: Agent Provided | Listed For Sale | $729,000 |
Jul 13, 2008 Source: Agent Provided | ListingRemoved | $799,000 |
Jun 11, 2008 Source: Agent Provided | PriceChange | $799,000 Price decreased by 9% |
Mar 13, 2008 Source: Agent Provided | Listed For Sale | $879,000 |
Dec 30, 1996 Source: N/A | Sold | $150,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | Unavailable | $70,500 |
Home facts updated by county records
Market trends in Islip
Last updated July 2026
Avg. sale price
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Sale-to-List Price
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Price per sq ft
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Available listings
36
6MoM
Around this home
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.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Frequently asked questions about 420 Smith Ave
- What is 420 Smith Ave estimated to be worth?Trulia's estimated value for 420 Smith Ave in Islip, NY is $1,292,200.
- What is the price history for 420 Smith Ave?420 Smith Ave in Islip, NY last sold for $550,000 in January 2013.
- 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 420 Smith Ave?The lot at 420 Smith Ave in Islip, NY is about 0.46 acres (19,950 sq ft).

