Active
4 Riverside Avenue
Mastic Beach, NY, 11951
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AN INTRODUCTION
A closer look.
Rare opportunity in Mastic Beach. Fully renovated Cape on a private 1+ acre corner lot with river views, modern upgrades throughout, and flexible living space including a possible 4th bedroom or office. Welcome to 4 Riverside Avenue, a beautifully updated home that offers the perfect combination of space, privacy, and modern comfort. This property stands out with its oversized lot, thoughtful renovation, and peaceful natural surroundings. The home features 3 spacious bedrooms, a potential 4th bedroom or office space, and 3 full bathrooms, providing flexibility for today's lifestyle. Natural light fills the home, highlighting the neutral color palette and hardwood floors throughout, creating a warm and inviting atmosphere from the moment you enter. The fully renovated kitchen is designed for both everyday living and entertaining, featuring brand new stainless steel appliances, granite countertops, and custom cabinetry. The bathrooms have been updated with modern tile finishes, adding a fresh and clean design throughout the home. Major upgrades include a new roof (2026), new electric, new fencing, and updated landscaping. The elegant Mountain Black metal roof adds both durability and striking curb appeal. The spacious basement with walkout access provides excellent potential for additional living space. With areas ideal for a bar, cinema room, recreation space, or future finishing, the lower level offers incredible versatility. Outside, the property truly shines. Sitting on over an acre of land, the home features new trees, fresh landscaping, a fenced front yard, and a fenced backyard, creating a peaceful outdoor setting with plenty of room to relax, entertain, or expand. This home offers convenient access to nearby parks, waterfront areas, shopping, and local amenities. If you are looking for a fully renovated, move in ready home with space, privacy, and modern upgrades on a rare oversized lot with river views, this is one you will want to see in person.
Property overview
- Property type
- Single Family Residence
- Architecture
- Cape Cod
- Condition
- Updated/Remodeled
- Year built
- 1955
- Lot size (sq ft)
- 44,431
- Status
- Active
- Listed
- 2026-03-04
- MLS number
- KEY967520
Interior & comfort
- Interior features
- First Floor Bedroom, First Floor Full Bath, Chefs Kitchen, Crown Molding, Formal Dining, Open Floorplan, Primary Bathroom, Walk-In Closet(s)
- Appliances
- Dishwasher, Electric Range, Electric Water Heater, ENERGY STAR Qualified Appliances, Microwave
- Heating
- Electric, ENERGY STAR Qualified Equipment
- Cooling
- Electric, ENERGY STAR Qualified Equipment, Multi Units, Wall/Window Unit(s), Zoned
- Basement
- Full, Walk-Out Access
Outdoors & amenities
- Parking
- Driveway, Oversized, Private
- Waterfront
- River Access, River Front
- Views
- Water
Schools & location
- Postal town
- Mastic Beach
- County
- Suffolk County
- School district
- William Floyd
- Elementary school
- Nathaniel Woodhull Elementary School
- Middle school
- William Floyd Middle School
- High school
- William Floyd High School
Taxes & utilities
- Annual property taxes
- $8,602
- Tax year
- 2025
- Association
- No
- Water
- Public
- Sewer
- Cesspool
Listing courtesy of Signature Premier Properties · 631-585-8400
MLS #KEY967520 · Active

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