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$949,000
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Property Description
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, 200-amp electrical service, floor plan changes, and more. 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.
Full Property Details
Full Property Details for 18 Walnut Ave
General
- Price: $949,000
- Taxes: $14,041
- Status: Active
- Type: Single Family
- Source: Long_Island
- MLS ID: 1041938
- Updated: 9/3/2026
- Added to Site: 8 day(s) ago
Interior
- Number of Rooms: 9
- Interior 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
- Fireplace: Yes
- Number of Fireplaces: 1
- Fireplace(s): Living Room, Wood Burning
- Appliances: Dishwasher, Dryer, Gas Range, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer
- Flooring: Hardwood
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 2
Bedrooms
- Total Bedrooms: 3
Additional Information
- Amenities: Other, Park, Playground, Tennis Court(s)
- Shared Amenities: Boat Dock, Other, Park, Playground, Tennis Court(s)
Exterior
- Exterior Features: Dock, Fire Pit, Garden, Mooring, Other, Playground, Tennis Court(s)
- Porch/Patio/Deck: Deck, Patio
Parking
- Parking Features: Driveway
Location
- County: Suffolk County
- Cross Streets: Chestnut Ave
- Driving Directions: 25A to Washington St to Walnut
School Information
- High School District: Three Village
- Elementary School: Setauket Elementary School
- Middle School: Paul J Gelinas Junior High School
- High School: Ward Melville Senior High School
Heating & Cooling
- Central air: Yes
- Cooling Type: Central Air
- Heating Type: Hot Air, Oil, Other
- Heating Zones: 2
Utilities
- Sewer: Cesspool
- Water: Public
- Utility Description: Electricity Connected, Water Connected
Structural Information
- Architectural Style: Colonial, Craftsman, Other, Saltbox, Traditional
- Detached/Attached: Detached
- Construction: Frame, Vinyl Siding
- Basement: Yes
- Basement Desc.: Finished, Full Basement, Partially Finished, See Remarks, Storage Space, Walk-Out Access
- Windows: Bay Window(s), Skylight(s), Wall of Windows
- Sq. Ft. Source: Other
- Year Built: 1950
Additional Structures
- Other Structures: Shed(s)
Lot Features
- Lot Size (Acres): 0.14
- Lot Size (Sq. Ft.): 6,098
Water Features
- Water Front View: Beach Access
Financial Considerations
- Tax Amount: $14,041
Disclosures and Reports
- Special Conditions: None
- Property ID: 0205-007-00-05-00-024-000
Listed by Douglas Elliman Real Estate
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Schools
Schools serving 18 Walnut Ave
School District:Three Village Central School District
| Name | Grades | Distance |
|---|---|---|
Setauket Elementary School 134 Main St, Setauket- East Setauket, NY 11733 | K-6 | 1.4 mi |
Paul J Gelinas Junior High School 25 Mud Rd, Setauket- East Setauket, NY 11733 | 7-9 | 2.2 mi |
Ward Melville Senior High School 380 Old Town Rd, Setauket- East Setauket, NY 11733 | 9-12 | 2.5 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 18 Walnut Ave
Date
Details
Price
Change
Source
9/02/2026
Listed
$949,000
26.53%
MLS
9/01/2022
Sold
$750,000
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 18 Walnut Ave
Year
Property Taxes
Change
Tax Assessment
Change
2024
$12,631
100%
$2,950
—
2020
100%
$2,950
—
2022
-100%
$2,950
—
2016
$9,199
-15%
$2,950
—
2020
$10,869
3%
$2,950
—
2018
$10,549
2%
$2,950
—
2017
$10,331
15%
$2,950
—
2016
$9,004
4%
$2,950
—
2015
$8,679
4%
$2,950
—
2015
$8,335
2%
$2,950
—
2014
$8,195
4%
$2,950
—
2013
$7,912
—
$2,950
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 18 Walnut Ave
18 Walnut Avenue, Setauket, NY 11733 (MLS# 1041938) is a Single Family property with 3 bedrooms and 2 full bathrooms. 18 Walnut Avenue is currently listed for $949,000 and was received on September 02, 2026. Want to learn more about 18 Walnut Avenue? Do you have questions about finding other Single Family real estate for sale in Poquott? You can browse all Poquott real estate or contact a Coldwell Banker agent to request more information.
