Prevu by reAlpha
BuySellBlogBrowse Listings
17 Riverside Avenue, Mastic Beach NY 11951
17 Riverside Avenue, Mastic Beach NY 11951
17 Riverside Avenue, Mastic Beach NY 11951
17 Riverside Avenue, Mastic Beach NY 11951
17 Riverside Avenue, Mastic Beach NY 11951
17 Riverside Avenue, Mastic Beach NY 11951
17 Riverside Avenue, Mastic Beach NY 11951
17 Riverside Avenue, Mastic Beach NY 11951
17 Riverside Avenue, Mastic Beach NY 11951
17 Riverside Avenue, Mastic Beach NY 11951
New York>Suffolk County>Mastic

17 Riverside AvenueMastic Beach, NY 11951

For Sale

$585,000

Smart Buyer Rebate $2,125

Come see this spacious 4-bedroom, 2.5-bath waterfront home featuring an open floor plan where you can enjoy breathtaking sunrise views over the water. The property offers a large private bulkhead capable of accommodating up to three boats, making it ideal for boating and waterfront living.

This home also includes a well-designed in-law suite, offering flexibility and additional living space. Conveniently located near William Floyd Parkway and Montauk Highway, providing easy access to shopping, dining, and major commuter routes.

Enjoy close proximity to local outdoor attractions, including Smith Point County Park, Mastic Beach Conservancy, and the scenic trails and wildlife at Wertheim National Wildlife Refuge. A rare opportunity to own a waterfront home with boating access, nearby beaches, and convenient transportation.

Listed by Karen Clark

·

Handsome Real Estate Inc

·

631-678-5756

Last updated January 29, 2026

·

Source: OneKey #955567

Listing Facts

  • TypeSingle-family
  • NeighborhoodMastic
  • Bedrooms4
  • Bathrooms3
  • Days on Prevu3
  • Taxes$10,102.69/year
  • Size1,272 sqft
  • Price per sqft$460

Amenities

  • Dishwasher
  • Washer/Dryer
  • Parking

Location

Mortgage Calculator

Listing History

01/26/2026
Listed by Handsome Real Estate Inc
$585,000

Property Details for 17 Riverside Avenue

Exterior

Construction

  • Year Built: 1982
  • Architectural Style: Raised Ranch
  • Construction Materials: Shingle Siding

Features

  • Waterfront Features: Bulkhead
  • Waterfront: Yes

Measurements

  • Building Area Total: 1,272
  • Building Area Units: Square Feet
  • Lot Size Acres: 0.25
  • Lot Size Square Feet: 10,890

Financial

Taxes

  • Parcel Number: 0200-940-00-05-00-023-000
  • Tax Annual Amount: $10,102.69
  • Tax Assessed Value: $2,390.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Dishwasher, Dryer, Electric Range, Refrigerator, Stainless Steel Appliance(s)
  • Fireplace: Yes
  • Interior Features: Cathedral Ceiling(s), Ceiling Fan(s), Eat-in Kitchen, Formal Dining, High Ceilings, Open Floorplan, Recessed Lighting, Tray Ceiling(s)

Measurements

  • Living Area: 1,272
  • Living Area Source: Other

Rooms

  • Bathrooms Full: 2
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 4
  • Rooms Total: 12

Parking

Parking

  • Parking Features: Driveway

Schools

Elementary School

  • Elementary School: Nathaniel Woodhull Elementary School
  • Elementary School District: William Floyd

High School

  • High School: William Floyd High School
  • High School District: William Floyd

Middle or Junior School

  • Middle Or Junior School: William Floyd Middle School
  • Middle Or Junior School District: William Floyd

Utilities

Equipment

  • Cooling: Wall/Window Unit(s)
  • Heating: Baseboard
  • Sewer: Cesspool
  • Utilities: Cable Connected, Electricity Connected, Water Connected
  • 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 17 Riverside Avenue.

What schools are nearby to 17 Riverside Avenue?

Nearby schools include the Nathaniel Woodhull Elementary School, William Floyd Middle School, and William Floyd High School.

What are the annual taxes for 17 Riverside Avenue?

Annual taxes for this single-family home are estimated at $10,102.

How does 17 Riverside Avenue compare to other single-family homes in Mastic?

This single-family home is listed 14% above the average price for single-family homes in Mastic and has been on the market for 92 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 1,272 sqft.

17 Riverside Avenue is a 4-bedroom, 3-bath single-family home for sale in Mastic Beach NY 11951. Listed on Prevu for 3 days at $585,000. This home features 1,272 square feet of living space, located in Mastic. The median listing price for single-family homes in this area is $499,990. Nearby schools include Nathaniel Woodhull Elementary School, William Floyd Middle School, and William Floyd High School. Additional amenities include dishwasher, 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.