Skip to main content
Save
Ask
Tour
Hide
Share
$1,549,999
New Listing

121 Ontario Avenue
Massapequa, NY 11758

For Sale|Single Family Residence|Active
5
Beds
4
Total Baths
3
Full Baths
1
Partial Bath
3,350
SqFt
$463
/SqFt
2025
Built
County:
Nassau
Listing courtesy of LA Rosa Realty New York LLC Seth@SethSellsNY.com
Call Now: (718) 501-0249
Is this the listing for you? We can help make it yours.
(718) 501-0249
Save
Ask
Tour
Hide
Share

Mortgage Calculator

Monthly Payment (Est.)

$7,072
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2025 Information is deemed reliable but not guaranteed.

TO BE BUILT. Custom Built Spectacular Center Hall Colonial New Construction. 5 bedroom/3.5 Bathroom. State of the art House, complete with Automated Smart Home, SONOS Audio System, and Camera System. Unfinished Basement. Custom Wood Cabinets, Designer Center Island Eat In Kitchen with Quartz Countertops. Formal Dining Room To Dine In Elegance, Butler's Pantry, Formal Living Rm. Magnificent Great Room with Gas Fireplace with Remote Control. Large 80x100 Lot. Includes 9' Ceilings 1st Floor. 1st Floor Bedroom. Beautiful Wood Floors, Custom Woodwork Moldings. Spacious Primary Suite W/ Custom Ceilings and Walk-In Closet. Custom Millwork Throughout. Anderson Windows, LED Lighting Throughout. Huge Closets, In Ground Sprinklers. Large 2 Car Garage. SEE UPGRADES SPEC LIST ATTACHED FOR MORE! Come help put the finishing touches on your dream home! Buyer is responsible for fees for water and sewer hook up, final survey, and transfer of tax. These are non-negotiable.

Save
Ask
Tour
Hide
Share
Listing Snapshot
Price 
$1,549,999
Days On Site 
0 Days
Bedrooms 
5
Inside Area (SqFt) 
3,350 sqft
Total Baths 
4
Full Baths 
3
Partial Baths 
1
Lot Size 
0.1837 Acres
Year Built 
2025
MLS® Number 
877613
Status 
Active
Property Tax 
$12,687.46
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
18 hours agoListing first seen on site
18 hours agoListing updated with changes from the MLS®
General Features
Acres 
0.1837
Cross Street 
Broadway
Direction Faces 
South
Disclosures 
None
Garage 
Yes
Garage Spaces 
2
Property Condition 
New Construction
Property Sub Type 
Single Family Residence
Sewer 
Public Sewer
SqFt Total 
3350
Stories 
Three Or More
Style 
Colonial
Utilities 
Natural Gas AvailableCable AvailableElectricity ConnectedNatural Gas ConnectedSewer ConnectedWater Connected
Water Source 
Public
Interior Features
Appliances 
DishwasherENERGY STAR Qualified AppliancesGas RangeMicrowaveRefrigeratorStainless Steel Appliance(s)Tankless Water Heater
Basement 
Full
Cooling 
Central AirENERGY STAR Qualified Equipment
Fireplace 
Yes
Fireplace Features 
Family RoomGas
Fireplaces 
1
Flooring 
Hardwood
Heating 
Forced Air
Interior 
Crown MoldingDouble VanityEat-in KitchenHigh CeilingsKitchen IslandOpen FloorplanRecessed LightingSound SystemWalk-In Closet(s)
Laundry Features 
Gas Dryer HookupLaundry RoomWasher Hookup
Window Features 
ENERGY STAR Qualified Windows
Save
Ask
Tour
Hide
Share
Exterior Features
Construction Details 
Blown-In InsulationFrameStoneVinyl Siding
Windows/Doors 
ENERGY STAR Qualified Windows
Community Features
School District 
Plainedge
Schools
School District
Plainedge
Elementary School
Charles E Schwarting School
Middle School
Plainedge Middle School
High School
Plainedge Senior High School
Listing courtesy of LA Rosa Realty New York LLC Seth@SethSellsNY.com


Based on information submitted to the MLS GRID as of 2025-06-14 10:49 AM 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.

Neighborhood & Commute
Source: Walkscore
Community information and market data Powered by ATTOM Data Solutions. Copyright ©2019 ATTOM Data Solutions. Information is deemed reliable but not guaranteed.
Save
Ask
Tour
Hide
Share