Welcome to this beautifully maintained 3,068 sq. ft. Colonial set on a private .91-acre property in the prestigious Village of Head of the Harbor within the Smithtown School District. This spacious home offers 4 bedrooms, 2.5 baths, a finished basement, and a 2-car garage. The inviting floor plan features a formal living room, formal dining room, family room, and bonus room perfect for a home office or playroom. Hardwood floors run throughout the home, complemented by two beautiful wood-burning fireplaces and a full-length attic for exceptional storage. The cherry and granite kitchen features updated appliances, while the renovated bathrooms offer granite double vanities and custom flooring. Recent updates include a new heating system and central air (2022), brand new hot water heater, 200-amp electric, roof (2021), and Andersen windows, including dormers, replaced in 2021. Exterior highlights include cedar siding, a charming front portico, wood deck, bluestone patio, wood fencing, gazebo, and a 10-zone in-ground sprinkler system. The expansive backyard offers plenty of room for entertaining or a future pool. This is a rare opportunity to own a spacious, move-in-ready Colonial in the prestigious Village of Head of the Harbor, offering classic character, quality updates, exceptional privacy, and an unbeatable North Shore location.
Single-familyProperty Type
1976Year Built
0.91 acresLot Size
$367Price/Sq.Ft.
2 car garageParking
Listing by Kelly Choulis Auffret• Signature Premier Properties
Contact: 516-697-3742
Bought with Valerie Peterson• DeBarbieri Assoc Inc
Est. $3,531 per month, based on comparable rentals
Sale and tax history for 9 Three Sisters Rd
Sale History
Tax History
Date
Event
Price
OneKey® MLS as Distributed by MLS Grid #1023141
Sep 24, 2026
Sold
$1,125,000
$367/sq ft
Jul 21, 2026
Pending
—
Jul 9, 2026
Listed
$1,050,000
$342/sq ft
Public Records
Apr 16, 2018
Sold
$625,000
$204/sq ft
OneKey® MLS as Distributed by MLS Grid #L2968287
Mar 16, 2018
Sold
$625,000
$204/sq ft
Dec 16, 2017
Pending
—
Dec 5, 2017
Price Changed
$625,000
$204/sq ft
Sep 5, 2017
Listed
$675,000
$220/sq ft
Head Of Harbor-Stately Colonial-Tastefully Redone Inside-Updated Hardwood Floors Throughout-Cherry/Granite/S.S Kitchen-Updated Granite/Double Sink Baths W/Custom Floors-Andersen Windows-2 Beautiful Fireplaces-Beautiful Yard W/Room For Pool-1 Acre Shy-Needs A Little Deck Work And Exterior Paint! Priced To Sell.Super Low Taxes For This Area.This Is Where Your "Story" Begins!
OneKey® MLS as Distributed by MLS Grid #L2937282
Aug 29, 2017
Listing Removed
—
Aug 3, 2017
Price Changed
$699,000
$228/sq ft
May 31, 2017
Price Changed
$729,000
$238/sq ft
May 10, 2017
Listed
$749,000
$244/sq ft
Public Records
Mar 29, 2005
Sold
$850,000
$277/sq ft
Public Records
Mar 31, 1992
Sold
$305,000
$99/sq ft
Public Records
Sep 5, 1989
Sold
$365,000
$119/sq ft
Public Records
Dec 16, 1986
Sold
$321,500
$105/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$17,505
$550 + $6,750
$7,300
2025
$17,505 (−5.2%)
$550 + $6,750
$7,300
2024
$18,474 (+2.9%)
$550 + $6,750
$7,300
2023
$17,958 (+13.6%)
$550 + $6,750
$7,300
2022
$15,815
$550 + $6,750
$7,300
2021
$15,815 (+7.6%)
$550 + $6,750
$7,300
2020
$14,699 (+1.1%)
$550 + $6,750
$7,300
2019
$14,538 (+3.2%)
$550 + $6,750
$7,300
2018
$14,081 (+12.8%)
$550 + $6,750
$7,300
2017
$12,484 (+0.9%)
$550 + $6,750
$7,300
2016
$12,369 (+2.7%)
$550 + $6,750
$7,300
2015
$12,043 (+2.6%)
$550 + $6,750
$7,300
2014
$11,734 (+3.7%)
$550 + $6,750
$7,300
2013
$11,312 (+1.7%)
$550 + $6,750
$7,300
2012
$11,123 (+5.5%)
$550 + $6,750
$7,300
2011
$10,540 (+2.1%)
$550 + $6,750
$7,300
2010
$10,319 (+0.3%)
$550 + $6,750
$7,300
2009
$10,287
$550 + $6,750
$7,300
Public record
Beds
4
Baths
2.5
Stories
—
Lot width
—
Lot depth
—
Lot size
0.91 Acres
Year renovated
—
Sq. Ft.
2,514
Year built
1976
Style
Single Family Residential
County
Suffolk County
APN
0801005000200028000
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 31, 2026.
Property details
Parking
Parking Information
Carport YN: No
Parking Features: Driveway, Garage, Garage Door Opener