21 Riverside AvenueMastic Beach, NY 11951Sale Price: $506,000

  • Sale Price: $506,000
Print
$
$
%
$/month over payments
Federal 30-year interest rate: 6.37% last updated on May 7, 2026
* All Figures are estimates. Check with your bank or proposed mortgage company for actual interest rates.
This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.
  • $506,000Sale Price
  • 3Bedrooms
  • 3Bathrooms
  • 2,125Square Feet

Toolbar | Ask A Question

The Stunning Views of Poospatuck Waterway from your Backyard, Make this a real GEM. This Spacious 3 Bed 3 Bath Home is Designed to Enjoy the Scenery and Privacy of this Neighborhood. From the Expanded Eat-in Kitchen with all Updated Appliances, Living Room with Hardwood Floors, to the Master Bedroom with En-Suite Bath, Walk-in Closets, and New Roof Will Suit you for Whatever Mood you Find Yourself in. The Sliders from the Main Dining Area to your Porch, Overlooking the Water Top Off this Mint Condition Home. Also Great for the Boater with 70 Foot Bulkhead., Additional information: Separate Hotwater Heater:y

Listing Tools

Property Details of 21 Riverside Avenue

Property Details

Interior Features

Utilities and Appliances

Community

Other Details

Map Location

Listed by Lawrence M. Gardner CBR of Exit Realty All Pro

Listing Sold by Exit Realty All Pro

Listings courtesy of OneKey® MLS as distributed by MLS GRID. Based on information submitted to the MLS GRID as of May 15, 2026 2:50 PM EDT. 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. IDX information is provided exclusively for consumers’ personal noncommercial 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. The use of the MLS GRID Data may be subject to an end user license agreement.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

I agree to receive marketing and customer service calls and text messages from MYNY. To opt out, you can reply 'stop' at any time or click the unsubscribe link in the emails. Consent is not a condition of purchase. Msg/data rates may apply. Msg frequency varies. Privacy Policy.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.