17 Riverside Ave

Mastic Beach, NY 11951

$585,000
Price
4
Beds
1,272 Sq. Ft.
$460 / Sq. Ft.
1,272
Sq. Ft.
$460
per Sq. Ft.
Open: 1/31 11:00AM - 01:00PM
Open: 1/31 11:00AM - 01:00PM

Description

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,...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.
  1. Listed by Karen Clark • Handsome Real Estate Inc
    P: (516)-457-2225 C: (631)-678-5756 karen.clark@handsomere.com

Property Details for 17 Riverside Avenue

City/Township
Brookhaven
Architectural Style
Raised Ranch
Waterfront
Yes

Open Houses

Saturday, Jan 31st

11:00 AM - 1:00 PM

Public

Sunday, Feb 1st

11:00 AM - 12:30 PM

Public

LISTING UPDATED: 01/29/2026 11:49 AM

Property Details for 17 Riverside Avenue

StatusActive
MLS #955567
Days on Market3
Taxes$10,103 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeSingle Family
Year Built1982
Lot Size0.25 AC / 10,890 SF
CountySuffolk County

Location

Listing Courtesy of Handsome Real Estate Inc, Karen Clark
Add your commute

Building Information for 17 Riverside Avenue

Stories-Year Built1982Building Size-Lot Size0.25 AC / 10,890 SF

Payment Calculator

$3,693 per month

30 year fixed, 6.15% Interest

Principal and Interest

$2,851

Property Taxes

$842

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Property Information for 17 Riverside Avenue

Summary
Location and General Information
  • Senior Community YN: No
  • Property Attached: No
  • Structure Type: false
  • State Or Province: NY
School Information
  • School District: William Floyd
  • Elementary School District: William Floyd
  • Elementary School: Nathaniel Woodhull Elementary School
  • Middle Or Junior School District: William Floyd
  • Middle Or Junior School: William Floyd Middle School
  • High School District: William Floyd
  • High School: William Floyd High School
Rental
Rental
  • Lease Considered: No
Unit Information
Unit Information
  • Building Units Total: 1
Taxes and HOA Information
Taxes and HOA Information
  • Parcel Number: 0200-940-00-05-00-023-000
  • Tax Assessed Value: $2,390.00
  • Association: No
Interior and Exterior Features
Interior Features
  • Amenities: Bulkhead, Cathedral/Vaulted/High Ceiling, Ceiling Fan(s), Eat in Kitchen, Formal Dining, High Ceilings, Open Floorplan, Public, Raised Ranch, Recessed Lighting, Tray Ceiling(s)
  • Interior Features: Cathedral Ceiling(s), Ceiling Fan(s), Eat-in Kitchen, Formal Dining, High Ceilings, Open Floorplan, Recessed Lighting, Tray Ceiling(s)
  • Appliances: Dishwasher, Dryer, Electric Range, Refrigerator, Stainless Steel Appliance(s)
  • Number Of Kitchens: 2.0
  • Total Rooms: 12
  • Attic Description: Pull Stairs
  • Fireplace: Yes
  • Location Amenities: Stainless Steel Appliances, Cathedral/Vaulted/High Ceiling, Eat in Kitchen, Formal Dining Room, High Ceilings
  • Living Area: 1,272.00
  • Basement: No
Exterior Features
  • Exterior Property Features: Driveway
  • Elevation Certificate: No
  • Construction Materials: Shingle Siding
  • Waterfront Features: Bulkhead
  • Pool Private: No
Lot Information
  • Building Area Units: Square Feet
Parking
  • Parking Features: Driveway
  • Garage: No
  • Carport: No
Utilities
  • Cooling: Wall/Window Unit(s)
  • Heating: Baseboard
  • Heat Fuel Type: Baseboard
  • Number Of Heating Zones: 3
  • Sewer: Cesspool
  • Water Source: Public
  • Utilities: Cable Connected, Electricity Connected, Water Connected
Green Features
  • Green Features: Dishwasher, Dryer, Electric Range, Refrigerator, Stainless Steel Appliance(s), Baseboard
Agent
Payment and Rate
  • Down Payment Resource: Yes

Property History for 17 Riverside Avenue

DateEvent & SourcePriceAppreciation
Jul 24, 2014

Sold (Public Record)

Public Record #434040969

$325,000—
DateEvent & SourcePrice
07/24/2014

Sold (Public Record)

Public Record #434040969

$325,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 17 Riverside Avenue

Taxable ValueLand$150Additions$2,240Total$2,390
Home Facts
Beds0Lot Size10,890 SqFtStyleSingle Family ResidenceCountySUFFOLKAPN0200-940.00-05.00-023.000

Schools near 17 Riverside Avenue

This home is within William Floyd Union Free School District.
Rating
School
Type
Grades
Distance
Tangier Smith Elementary School
Public - K to 5
William Paca Middle School
Public - 6 to 8
William Floyd High School
Public - 9 to 12
William Floyd Learning Center
Public - K to 5
Rating
School
Distance
Tangier Smith Elementary School
PublicK to 5

William Paca Middle School
Public6 to 8

William Floyd High School
Public9 to 12

William Floyd Learning Center
PublicK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 17 Riverside Avenue, Mastic Beach, NY 11951

17 Riverside Avenue is a single family home for sale in Mastic Beach, NY 11951. This property was listed for sale on January 26, 2026 by Handsome Real Estate Inc, it's currently listed at $585,000. It has been on the market for a total of 3 days and was last sold on July 24, 2014. This listing's school district is William Floyd Union Free School District. Nearby schools include Tangier Smith Elementary School, William Paca Middle School and William Floyd High School. 17 Riverside Avenue is a 4-bed, 3-bath, 1,272 sqft single family home built in 1982.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass makes no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of Handsome Real Estate Inc, Karen Clark

Based on information submitted to the MLS GRID as of 01/29/2026 11:49 AM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. Use of the MLS GRID data may be subject to an end user license agreement prescribed by the applicable MLS of the Member Participant, if any, and as amended from time to time.