by RH Advisors

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$949,000
● House - For Sale

18 Walnut Avenue

Brookhaven, NY 11733
bedrooms
3 Beds
bathrooms
2 Baths
square feet
2,250 Ft²
$5,830
Est. Monthly

About This Property

Also offered for lease at $5200/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, 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.
Unit Size
2,250 Ft²
Days on Market
24 days
Land Size
0.14 acres
Price per sqft
$422
Property Type
House
Property Taxes
$1,170
HOA Dues
-
Year Built
1929

Listed By

Edward Schmidt
Edward Schmidt
Douglas Elliman Real Estate

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Last updated: 5 days ago (OneKey MLS #KEY1041938)

Price History

Date / Event Date Event Price
Aug 31, 2026 Listed by Douglas Elliman Real Estate $949,000
Listed by Douglas Elliman Real Estate
Jul 13, 2006 Sold
Sold

Property Highlights

Air Conditioning
Fireplace
Parking Details
Has Open Parking
Parking Features: Driveway
Interior Details
Full Bathrooms: 2
Interior Features: Breakfast Bar, Cathedral Ceiling(s), Crown Molding, Eat-in Kitchen, Entrance Foyer, High Ceilings, His and Hers Closets, Open Floorplan, Other, Pantry, Recessed Lighting, Storage, First Floor Full Bath, Formal Dining, Original Details
Appliances: Dishwasher, Dryer, Gas Range, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer
Flooring Type: Hardwood
Rooms: 9
Has Fireplace
Fireplace Features: Living Room, Wood Burning
Fireplaces: 1
Basement: Finished, Full, Partially Finished, Storage Space, Walk-Out Access, See Remarks
Exterior Details
Square Footage: 2250
Square Footage Source: $0
Property Condition: Updated/Remodeled
Architectural Style: Colonial, Craftsman, Other, Saltbox, Traditional
Year Built: 1950
Waterfront Features: Beach Access
Other Structures: Shed(s)
Building Area Units: Square Feet
Window Features: Bay Window(s), Skylight(s), Wall of Windows
Construction Materials: Frame, Vinyl Siding
Patio and Porch Features: Deck, Patio
Lot Features: Back Yard
Lot Size Area: 6098
Lot Size Units: Square Feet
Lot Size Acres: 0.14
Lot Size Square Feet: 6098
Water Source: Public
Financial Details
Tax Annual Amount: $14,041
Lease Considered: Yes
Utilities Details
Cooling Type: Central Air
Heating Type: Oil, Other, Hot Air
Sewer : Cesspool
Location Details
HOA/Condo/Coop Amenities: Boat Dock, Other, Park, Playground, Tennis Court(s)

Building Info

Overview

    General

  • Year Built: 1929
  • Effective Year Built: 1929
  • Total Rooms: 9
  • Bedroom Count: 4
  • Bathroom Count: 1
  • Full Bathrooms: 1
  • Partial Bathrooms: 1
  • Building Condition: 0
  • Building Quality: 0
  • Construction Type: 0
  • Building Style: 4
  • Exterior Walls Type: 2
  • Interior Walls Type: 0
  • Roof Shape Type: 0
  • Roof Cover Type: 0
  • Floor Count: 175
  • Floor Cover: 0
  • Basement Type: 9
  • Basement Area: 0
  • Garage Type: 17
  • Parking Space Count: 1
  • Patio Type: 0
  • Porch Type: 0
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 6,098
  • Total Building Area: 2,088
  • Building Area: 2,088
  • Building Area Measurement: L

    Heating and Cooling

  • Fireplace Count: 1
  • Air Conditioning: 0
  • Heating: 13
  • Heated Square Feet: 2,088
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Subdivision: BAY VIEW PARK
  • Land Acres: 0000000140
  • Standard Land Use Code: 1001
  • County Land Use Code: 210
  • Legal Description 1: BAY VIEW PARK 449 151A & 152

Neighborhood

  • School District Name: Three Village Central School District
  • School Tax School District: THREE VILLAGE
  • Census Tract: 158001

Geography

  • Assessors Map Reference: MAP 0400449
  • Account Number: 00000405520
  • District: 0205-0
  • Section: 7.00
  • Parcel: 0205-007.00-05.00-024.000
  • Block: 5
  • Lot: 24.000
  • Municipality: BROOKHAVEN
  • Latitude: 40.9521
  • Longitude: -73.0852

    Address

  • Full Address: 18 Walnut Ave
  • Address - House Number: 18
  • Address - Street Name: Walnut
  • Address - Suffix Type: Ave
  • State: NY
  • City Name: Setauket
  • Carrier Code: C010
  • 4-Digit Zip Code: 4020
  • Zip Code: 11733

Valuation

    Tax

  • Tax Year: 2023
  • Tax Amount: $1,245,953
  • Tax Rate Code Area: 472201

    Appraisal Valuation

  • Standard Deviation: 0.2282
  • Valuation Date: Feb 14, 2024
  • Confidence Score: 68
  • Final Value: 765,324
  • High Value: 939,989
  • Low Value: 590,659

    Market Valuation

  • Market Total Value: $5,463
  • Market Land Value: $370
  • Market Improvement Value: $5,093

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $2,950
  • Assessed Land Value: $200
  • Assessed Improvements Value: $2,750

    Sales

  • Current Sale Contract Date: Jun 26, 2006
  • Current Sale Recording Date: Jul 13, 2006
  • Current Sale Price:
  • Current Sale Document Type: 27
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About Poquott


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Nearby Rentals

Unit for rent at 27 Walnut Avenue, Poquott, NY, 11733

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Unit for rent at 44 Chestnut Avenue, Setauket, NY, 11733

$5,200 /mo

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44 Chestnut Avenue, Setauket, NY, 11733 Listing by Edward Schmidt
Unit for rent at 126 E Main Street, Port Jefferson, NY, 11777

$2,700 /mo

  • 1 Bed
  • 1 Bath
  • 633 ft²
126 E Main Street #B, Port Jefferson, NY, 11777 Listing by Michael A. Omedes


Frequently Asked Questions

When was property at 18 Walnut Avenue built and last sold?
The property at 18 Walnut Avenue was built in 1929 and last sold on Jun 26, 2006 for $500,000.
How much is this home worth?
The estimated value of the home located at 18 Walnut Avenue is $964,148.
What are some comparable homes to 18 Walnut Avenue?
There are currently no comparable homes to 18 Walnut Avenue.