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18 Walnut Avenue, Setauket, NY 11733

Setauket
Local realty services provided by:CENTURY 21 Kafcos Realty
18 Walnut Avenue,Setauket, NY 11733
$899,000
  • 3 Beds
  • 2 Baths
  • 2,250 sq. ft.
  • Single family
  • Active
Upcoming open houses
  • Sat, Oct 24
    12:30 pm - 02:00 pm
Listed by: edward schmidt
Office: douglas elliman real estate
MLS#:1041938
Source:OneKey MLS

Price summary

  • Price:$899,000
  • Price per sq. ft.:$399.56

About this home

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...

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Home facts

  • Year built:1937
  • Listing ID #:1041938
  • Added:52 day(s) ago
  • Updated:October 24, 2026 at 10:46 PM

Rooms and interior

  • Bedrooms:3
  • Total bathrooms:2
  • Full bathrooms:2
  • Rooms Total:9
  • Flooring:Hardwood
  • Dining Description:Eat-In Kitchen, Formal Dining
  • Kitchen Description:Dishwasher, Eat-in Kitchen, Microwave, Pantry, Refrigerator, Stainless Steel Appliance(s)
  • Basement:Yes
  • Basement Description:Finished, Full, Partially Finished, Walk-Out Access
  • Living area:2,250 sq. ft.

Heating and cooling

  • Cooling:Central Air
  • Heating:Oil
  • Central air:Yes

Structure and exterior

  • Year built:1937
  • Building area:2,250 sq. ft.
  • Lot area:0.14 Acres
  • Architectural Style:Colonial, Saltbox, Traditional
  • Construction Materials:Frame, Vinyl Siding
  • Exterior Features:Dock, Tennis Court(s)

Schools

  • High school:Ward Melville Senior High School
  • Middle school:Paul J Gelinas Junior High School
  • Elementary school:Setauket Elementary School

Utilities

  • Water:Public
  • Sewer:Cesspool

Finances and disclosures

  • Price:$899,000
  • Price per sq. ft.:$399.56
  • Tax amount:$14,041 (2026)

Features and amenities

  • Appliances:Dishwasher, Dryer, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer
  • Laundry features:Dryer, Washer
  • Amenities:Boat Dock, Cathedral Ceiling(s), Entrance Foyer, High Ceilings, Open Floorplan, Storage

Parking

  • Parking description:Driveway
Copyright 2026 OneKey MLS. All rights reserved. Listings courtesy of OneKey MLS as distributed by MLS GRID <lastMLSCheckTimestamp>. OneKey MLS provides content displayed here (“provided content”) on an “as is” basis and makes no representations or warranties regarding the provided content, including, but not limited to those of non-infringement, timeliness, accuracy, or completeness. Individuals and companies using information presented are responsible for verification and validation of information they utilize and present to their customers and clients. OneKey MLS will not be liable for any damage or loss resulting from use of the provided content or the products available through Portals, IDX, VOW, and/or Syndication. Recipients of this information shall not resell, redistribute, reproduce, modify, or otherwise copy any portion thereof without the expressed written consent of OneKey MLS. LI Member Broker: Greg Kafcos

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