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.
For sale
Price cut: $50K (10/5)
$899,000
18 Walnut Avenue, Setauket, NY 11733
3beds
2,250sqft
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
- 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#: 1041938
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
| Date | Event | Price |
|---|---|---|
| 10/5/2026 | Price change | $4,700-9.6%$2/sqft |
Source: OneKey® MLS as distributed by MLS GRID #1045073 Report a problem | ||
| 10/5/2026 | Price change | $899,000-5.3%$400/sqft |
Source: | ||
| 9/2/2026 | Listed for sale | $949,000+89.8%$422/sqft |
Source: | ||
| 9/1/2026 | Listed for rent | $5,200$2/sqft |
Source: OneKey® MLS as distributed by MLS GRID #1045073 Report a problem | ||
| 8/24/2026 | Listing removed | $5,200$2/sqft |
Source: Zillow Rentals Report a problem | ||
| 8/14/2026 | Listed for rent | $5,200$2/sqft |
Source: Zillow Rentals Report a problem | ||
| 8/21/2025 | Listing removed | $5,200$2/sqft |
Source: Zillow Rentals Report a problem | ||
| 8/16/2025 | Listed for rent | $5,200$2/sqft |
Source: Zillow Rentals Report a problem | ||
| 7/13/2006 | Sold | $500,000$222/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax 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
Climate risks
Neighborhood: Poquott
Nearby schools
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.




