Overlooking the shimmering waters of the Long Island Sound, this exquisite four-bedroom, three-bath Colonial is a masterclass in coastal elegance and timeless design. Gracefully elevated and thoughtfully renovated, it offers a front-row seat to Long Island’s most breathtaking sunsets and a lifestyle steeped in tranquility.
Behind its classic facade lies a luminous interior, fully reimagined in 2018 to blend sophisticated charm with luxurious modern comforts. The heart of the home is a sun-kissed kitchen adorned with gleaming quartz countertops, rich custom cabinetry, and an effortless flow into the open-concept living and dining areas — all perfectly positioned to showcase breathtaking uninterrupted views.
Multiple decks invite you to float above the scenery, savoring morning coffee, hosting twilight cocktails, or simply basking in the ever-changing coastal light. Enjoy one-of-a-kind sunrises from the balcony and sunsets from the private beach.
The serene primary suite is a private sanctuary, where panoramic water views and a spa-like en-suite bath evoke a perpetual vacation. Three additional bedrooms offer versatile space for family or guests.
A charming detached one-car garage complements the home’s coastal aesthetic, while every detail — from flooring to fixtures — speaks to quality, care, and enduring style. Nestled in a coveted waterfront enclave with deeded beach rights and just minutes from the vibrant shops, dining, and theater of Northport Village, as well as Del Vino Vineyard, this rare gem offers more than a home — it offers a lifestyle.
Fall in love with coastal living where charm, comfort, and beauty meet.
Sold for $1,250,000
$1,250,000
21 Hillside Avenue, Northport, NY 11768
4beds
2,613sqft
Single Family Residence, Residential
Built in 2018
10,454 Square Feet Lot
$1,301,000 Zestimate®
$478/sqft
$5,781 Estimated rent
Home value
$1,301,000
$1.17M - $1.44M
$5,781/mo
Zestimate® history
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$8,794/mo
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List your homeWhat's special
Private beachBreathtaking uninterrupted viewsCharming detached one-car garagePanoramic water viewsLuxurious modern comfortsSpa-like en-suite bathSophisticated charm
Zillow last checked:
Listing updated:
Listed by:
Kathryn A. Martin SFR CBR 516-901-2899,
Signature Premier Properties 631-754-3600,
Zachary A. Martin 631-923-5170,
Signature Premier Properties
Bought with:
Kathryn A. Martin SFR CBR, 30MA0424192
Signature Premier Properties
Zachary A. Martin, 10401291637
Signature Premier Properties
Source: OneKey® MLS as distributed by MLS GRID,MLS#: 888903
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 3
Heating
- Oil
Cooling
- Central Air
Appliances
- Included: Dishwasher, Dryer, Microwave, Oven, Range, Refrigerator, Stainless Steel Appliance(s), Washer, Wine Refrigerator
- Laundry: Laundry Room
Features
- First Floor Bedroom, First Floor Full Bath, Beamed Ceilings, Cathedral Ceiling(s), Ceiling Fan(s), Crown Molding, Eat-in Kitchen, Kitchen Island, Open Floorplan, Quartz/Quartzite Counters, Smart Thermostat, Storage
- Flooring: Hardwood
- Basement: Partial,Unfinished,Walk-Out Access
- Attic: Storage
- Number of fireplaces: 1
Interior area
- Total structure area: 2,613
- Total interior livable area: 2,613 sqft
Property
Parking
- Total spaces: 3
- Parking features: Carport, Driveway, Garage
- Garage spaces: 1
- Carport spaces: 2
- Has uncovered spaces: Yes
Features
- Levels: Two
- Has view: Yes
- View description: Water
- Has water view: Yes
- Water view: Water
- Waterfront features: Beach Access
Lot
- Size: 10,454 Square Feet
- Features: Back Yard, Front Yard, Landscaped, Near Golf Course, Near Public Transit, Near School, Near Shops, Sprinklers In Front, Sprinklers In Rear, Views
Details
- Parcel number: 0400008000300051000
- Special conditions: None
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence, Residential
Materials
- Vinyl Siding
Condition
- Year built: 2018
- Major remodel year: 2018
Utilities & green energy
- Sewer: Cesspool
- Water: Public
- Utilities for property: None
Community & HOA
Community
- Subdivision: Crab Meadow
HOA
- Has HOA: Yes
- Services included: Other
- HOA fee: $250 annually
Location
- Region: Northport
Financial & listing details
- Price per square foot: $478/sqft
- Tax assessed value: $3,300
- Annual tax amount: $11,891
- Date on market: 7/24/2025
- Cumulative days on market: 26 days
- Listing agreement: Exclusive Right To Sell
- Inclusions: Ceiling fans, dishwasher, door hardware, dryer, garage door opener, mailbox, convection microwave, refrigerator, washer, wine fridge, induction stove, oven, nest thermostat and doorbell
- Exclusions: Chandelier, second refrigerator, generator
Price history
| Date | Event | Price |
|---|---|---|
| 10/16/2025 | Sold | $1,250,000+4.2%$478/sqft |
Source:  OneKey® MLS as distributed by MLS GRID #888903 Report a problem | ||
| 8/19/2025 | Pending sale | $1,200,000$459/sqft |
Source: OneKey® MLS as distributed by MLS GRID #888903 Report a problem | ||
| 7/24/2025 | Listed for sale | $1,200,000+130.8%$459/sqft |
Source: OneKey® MLS as distributed by MLS GRID #888903 Report a problem | ||
| 12/4/2009 | Sold | $520,000-5.3%$199/sqft |
Source: Public Record Report a problem | ||
| 9/17/2009 | Listed for sale | $549,000+99.6%$210/sqft |
Source: Prudential Real Estate #2220973 Report a problem | ||
| 7/11/2000 | Sold | $275,000+450%$105/sqft |
Source: Public Record Report a problem | ||
| 8/15/1994 | Sold | $50,000$19/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | -- | $3,300 |
| 2024 | -- | $3,300 -21% |
| 2023 | -- | $4,175 |
| 2022 | -- | $4,175 |
| 2021 | -- | $4,175 |
| 2020 | -- | $4,175 +39.2% |
| 2019 | -- | $3,000 |
| 2018 | -- | $3,000 |
| 2017 | $7,982 | $3,000 |
| 2016 | -- | $3,000 |
| 2015 | -- | $3,000 |
| 2014 | -- | $3,000 |
| 2013 | -- | $3,000 |
| 2012 | -- | $3,000 |
| 2011 | -- | $3,000 |
| 2010 | -- | $3,000 |
| 2009 | -- | $3,000 |
| 2008 | -- | $3,000 |
| 2007 | $6,099 +14.8% | $3,000 |
| 2005 | $5,313 +7.7% | $3,000 |
| 2004 | $4,932 +6.6% | $3,000 |
| 2003 | $4,628 +5.6% | $3,000 |
| 2002 | $4,381 +2.8% | $3,000 |
| 2001 | $4,263 +24.7% | $3,000 +27.7% |
| 2000 | $3,418 | $2,350 |
Find assessor info on the county website
Neighborhood: 11768
Nearby homes
- $945,100-- bd-- ba-- sqft23 Hillside Ave, Northport, NY 11768Off Market
- $1,125,0004 bd3 ba2.5k sqft19 Hillside Ave, Northport, NY 11768For Sale
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Nearby schools
GreatSchools rating
- 2/10Norwood Avenue SchoolGrades: K-4Distance: 0.9 mi
- 7/10Northport Middle SchoolGrades: K-8Distance: 2 mi
- 9/10Northport Senior High SchoolGrades: 9-12Distance: 3.3 mi
Schools provided by the listing agent
- Elementary: Norwood Avenue School
- Middle: Northport Middle School
- High: Northport Senior High School
Source: OneKey® MLS as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$1,301,000
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$1,301,000
- New York
- Suffolk County
- Northport
- 11768
- 21 Hillside Avenue
Nearby cities
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