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21 Bay Avenue WHampton Bays, NY 11946

For Sale

$1,699,000

Smart Buyer Rebate $16,990

Quiet, Private, Set on 1.87 Acre Flag Lot. Beautifully Maintained Immaculate Two Story Traditional of 2,600+- sq.ft. Four Bedrooms, Three Bathrooms., First Floor Features Living Room with Masonry fireplace, & oak floors. Formal Dining, Corian Kitchen with Stainless Appliances which opens Skylit Great Room, 1 Bath all on 1st Floor. Second Floor Features Vaulted Ceiling Primary Bedroom with private in suite bathroom and Masonry Fireplace, Walk in Closet + additional closets. 3 Additional Bedrooms, and one Full Bath. Full basement with high ceilings. Two car attached garage. Lovely Sundeck for entertaining with Tiki Bar. Loads of room for pool. Beautifully landscaped and very private. Sprinkler system. Schedule your private showing.

Listed by Franklin D. Butz

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South Fork Realty

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631-728-6565

Listed by Anna M. Greenwald

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South Fork Realty

Last updated August 19, 2026

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Source: OneKey #1034640

Listing Facts

  • TypeSingle-family
  • NeighborhoodHampton Bays
  • Bedrooms4
  • Bathrooms3
  • Days on Prevu22
  • Taxes$10,064/year
  • Size2,522 sqft
  • Price per sqft$674

Amenities

  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

09/09/2026
Status changed to Active
$1,699,000
08/24/2026
Listed by South Fork Realty
$1,699,000
  1. 09/09/2026$1,699,000
    Status changed to Active
  2. 08/24/2026$1,699,000
    Listed by South Fork Realty

Property Details for 21 Bay Avenue W

Exterior

Construction

  • Window Features: Casement, Double Pane Windows
  • Year Built: 1977
  • Architectural Style: Traditional
  • Construction Materials: Frame, Hardi Plank Type, Vinyl Siding
  • Exterior Features: Rain Gutters

Features

  • Other Structures: Shed(s)

Measurements

  • Building Area Total: 3,248
  • Building Area Units: Square Feet
  • Lot Features: Part Wooded, Private, Sprinklers In Front, Sprinklers In Rear
  • Lot Size Acres: 1.90
  • Lot Size Square Feet: 82,764

Financial

Taxes

  • Parcel Number: 0900-261-00-05-00-040-000
  • Tax Annual Amount: $10,064.00
  • Tax Assessed Value: $602,500.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Dryer, Gas Cooktop, Microwave, Oven, Refrigerator, Stainless Steel Appliance(s), Washer, Oil Water Heater
  • Fireplace Features: Bedroom, Living Room
  • Fireplace: Yes
  • Fireplaces Total: 2
  • Interior Features: First Floor Full Bath, Central Vacuum, Eat-in Kitchen, Formal Dining, His And Hers Closets, Open Kitchen, Primary Bathroom, Recessed Lighting, Stone Counters, Walk-In Closet(s), Washer/Dryer Hookup

Measurements

  • Living Area: 2,522
  • Living Area Source: Public Records

Rooms

  • Basement: Full
  • Has Basement: Yes
  • Bathrooms Full: 3
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 4
  • Rooms Total: 8

Other

Location

  • Tax Block: 5
  • Tax Lot: 40

Parking

Parking

  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Driveway, Garage
  • Parking Total: 2

Schools

Elementary School

  • Elementary School: Hampton Bays Elementary School
  • Elementary School District: Hampton Bays

High School

  • High School: Hampton Bays High School
  • High School District: Hampton Bays

Middle or Junior School

  • Middle Or Junior School: Hampton Bays Middle School
  • Middle Or Junior School District: Hampton Bays

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Hot Air, Oil
  • Laundry Features: In Basement
  • Sewer: Cesspool
  • Utilities: Cable Connected, Electricity Connected, Propane
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 3 bathrooms in this single-family home at 21 Bay Avenue W.

What schools are nearby to 21 Bay Avenue W?

Nearby schools include the Hampton Bays Elementary School, Hampton Bays Middle School, and Hampton Bays High School.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 21 Bay Avenue W.

What are the annual taxes for 21 Bay Avenue W?

Annual taxes for this single-family home are estimated at $10,064.

How does 21 Bay Avenue W compare to other single-family homes in Hampton Bays?

This single-family home is listed 5% below the average price for single-family homes in Hampton Bays and has been on the market for 102 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 2,522 sqft.

21 Bay Avenue W is a 4-bedroom, 3-bath single-family home for sale in Hampton Bays NY 11946. Listed on Prevu for 22 days at $1,699,000. This property features 2,522 square feet of living space, located in Hampton Bays. The median listing price for single-family homes in this area is $1,207,500. Nearby schools include Hampton Bays Elementary School, Hampton Bays Middle School, and Hampton Bays High School. The home offers air conditioning, parking, and washer/dryer. View other single-family home listings in Suffolk County.

The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2026, OneKey™ MLS. All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.