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For sale
  • Price cut: $50K (10/5)
    $899,000

    18 Walnut Avenue, Setauket, NY 11733

    3beds
    2,250sqft
    Loading
    Single Family Residence, Residential
    Built in 1937
    6,098 Square Feet Lot
    $-- Zestimate®
    $400/sqft
    $-- HOA

    What's special

    Generous linen closetOversized entryLounging areasMostly-upgraded andersen windowsPartial new roof
    Also offered for lease at $4700/mo. The very best of North Shore living - just up the block from your private Village beach on Port Jefferson Harbor, with lounging areas and mooring rights - introducing 18 Walnut, in the idyllic, harborside community that is the Incorporated Village of Poquott. Warmth abound, this home has elements of craftsman, bungalow, and saltbox design, inside and out, with genuine curb appeal and a footprint spanning approximately 2,250 sq ft that stands apart from the cookie-cutter norm - a coastal charmer with upgrades already in place and room to make it your own. Enter through a vaulted front lounge room, wrapped in windows with 9' ceilings, that flows wonderfully into a generous living room, featuring an original stone fireplace. An oversized entry transitions into a formal dining room, with a bay window, that makes for great entertaining space. The two-tone cottage kitchen offers a 2023 gas range, 2025 dishwasher, breakfast bar, upgraded bay window, and slider to the yard, with real upside for those looking to further expand. Just off the kitchen, a cozy den features more vaulted ceilings and 2 new skylights, while antique details bring character to a spacious first floor full bath with walk-in shower and laundry. Upstairs, the primary bedroom spans the width of the house, with 11' ceilings, dual shallow walk-in closets outfitted with systems, a full wall of finished eave storage, and potential to add an ensuite. An upgraded full bath, 2 additional bedrooms, a generous linen closet, and attic access complete the second floor. The lower level, refinished in 2025, offers an above-grade walkout room (to the front) with 3 windows - ideal as a den or study - plus access to additional unfinished storage and a finished exterior "shed" built into the residence. Significant structure and system upgrades include new skylights (2025), a partial new roof, mostly-upgraded Andersen windows, 2015 Lennox central air and heat, 2011 vinyl cedar impression siding with Azek trim and roof, extensive sheetrock and insulation work, a 2018 hot water heater, upgraded 200-amp electrical service, floor plan changes, and more. First floor hardwood floors refinished and gleaming as of Oct 3, and professional painting is underway. The backyard is secret-garden style - enveloped in greenery, flowering trees and plantings, with a natural stone pathway and patio, a deck strung with bistro lighting, and an outdoor shower - while the front offers a gravel driveway, planting beds, a paver walkway and patio, and ample parking. Village of Poquott residents are afforded access to three private beaches on Port Jeff & Setauket Harbors, with exclusive mooring rights, lounge areas, and kayak/dinghy racks, a Village dock, a boat ramp, a newly updated tennis court, multiple parks and playgrounds, gardens, private security and code enforcement, and an active annual social calendar. Zoned for the Three Village School District (Setauket Elementary, Gelinas Junior High, Ward Melville High School), 18 Walnut is a three-minute drive to Port Jefferson Village's harborside downtown and ferry access to New England, and about 12 minutes to the world renowned institutions that are Stony Brook University & Hospital. Also offered for lease annually, at $5200/mo. True taxes total to $14,041, which includes Village of Poquott taxes of $1,195. Some photos have been virtually staged but all remain true to layout/structure.
    38 days
    1,281
    60

    Zillow last checked:

    Listing updated:

    Listed by:

    Douglas Elliman Real Estate 631-549-4400,

    Edward Schmidt 631-946-1895

    Source: OneKey® MLS as distributed by MLS GRID,MLS#: 1041938MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 3
      • Bathrooms: 2
      • Full bathrooms: 2
      Heating
      • Hot Air, Oil, Other
      Cooling
      • Central Air
      Appliances
      • Included: Dishwasher, Dryer, Gas Range, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer
      Features
      • First Floor Full Bath, Breakfast Bar, Cathedral Ceiling(s), Crown Molding, Eat-in Kitchen, Entrance Foyer, Formal Dining, High Ceilings, His and Hers Closets, Open Floorplan, Original Details, Other, Pantry, Recessed Lighting, Storage
      • Flooring: Hardwood
      • Windows: Bay Window(s), Skylight(s), Wall of Windows
      • Basement: Finished,Full,Partially Finished,See Remarks,Storage Space,Walk-Out Access
      • Attic: Pull Stairs
      • Number of fireplaces: 1
      • Fireplace features: Living Room, Wood Burning
      Interior area
      • Total structure area: 2,250
      • Total interior livable area: 2,250 sqft

      Property

      Parking
      • Parking features: Driveway
      • Has uncovered spaces: Yes
      Features
      • Patio & porch: Deck, Patio
      • Exterior features: Dock, Fire Pit, Garden, Mooring, Other, Playground, Tennis Court(s)
      • Waterfront features: Beach Access
      Lot
      • Size: 6,098 Square Feet
      • Features: Back Yard
      Details
      • Additional structures: Shed(s)
      • Parcel number: 0205007000500024000
      • Special conditions: None

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Colonial,Craftsman,Other,Saltbox,Traditional
      • Property subtype: Single Family Residence, Residential
      Materials
      • Frame, Vinyl Siding
      Condition
      • Updated/Remodeled
      • Year built: 1937

      Utilities & green energy

      • Sewer: Cesspool
      • Water: Public
      • Utilities for property: Electricity Connected, Water Connected

      Community & HOA

      Community
      • Features: Other, Park, Playground, Tennis Court(s)
      HOA
      • Has HOA: No
      • Amenities included: Boat Dock, Other, Park, Playground, Tennis Court(s)
      Location
      • Region: Setauket

      Financial & listing details

      • Price per square foot: $400/sqft
      • Tax assessed value: $614,584
      • Annual tax amount: $14,041
      • Date on market: 9/2/2026
      • Cumulative days on market: 39 days
      • Listing agreement: Exclusive Right To Sell
      • Electric utility on property: Yes

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        10/5/2026Price change$4,700-9.6%$2/sqft
        Source: OneKey® MLS as distributed by MLS GRID #1045073 Report a problem
        10/5/2026Price change$899,000-5.3%$400/sqft
        Source: OneKey® MLS as distributed by MLS GRID #1041938 Report a problem
        9/2/2026Listed for sale$949,000+89.8%$422/sqft
        Source: OneKey® MLS as distributed by MLS GRID #1041938 Report a problem
        9/1/2026Listed for rent$5,200$2/sqft
        Source: OneKey® MLS as distributed by MLS GRID #1045073 Report a problem
        8/24/2026Listing removed$5,200$2/sqft
        Source: Zillow Rentals Report a problem
        8/14/2026Listed for rent$5,200$2/sqft
        Source: Zillow Rentals Report a problem
        8/21/2025Listing removed$5,200$2/sqft
        Source: Zillow Rentals Report a problem
        8/16/2025Listed for rent$5,200$2/sqft
        Source: Zillow Rentals Report a problem
        7/13/2006Sold$500,000$222/sqft
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025-- $2,950
        2024-- $2,950
        2023-- $2,950
        2022-- $2,950
        2021-- $2,950
        2020-- $2,950
        2019-- $2,950
        2018-- $2,950
        2017$10,549 $2,950
        2016-- $2,950
        2015-- $2,950
        2014-- $2,950
        2013-- $2,950
        2012-- $2,950
        2011-- $2,950
        2010-- $2,950
        2009-- $2,950
        2008-- $2,950
        2007$6,500 +26.8%$2,950
        2005$5,125 +7.9%$2,950
        2004$4,750 +7.6%$2,950
        2003$4,416 +8.1%$2,950
        2002$4,087 +1.5%$2,950
        2001$4,028 -3%$2,950
        2000$4,152 $2,950
        Find assessor info on the county website

        Monthly payment

        Estimated monthly payment$1,822
        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        See how much you could borrow to make a competitive offer.

        Climate risks

        Neighborhood: Poquott

        Getting around

        13 / 100
        Car-Dependent
        16 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • Elementary: Setauket Elementary School
        • Middle: Paul J Gelinas Junior High School
        • High: Ward Melville 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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