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121 Ontario AvenueMassapequa, NY 11758

Single Family · 5 Beds · 3 Full Baths · 1 Half Bath · 3,350 Sq. ft. | 0.18 Acres
$1,599,999 Active

121 Ontario Avenue Overview

Time on Site:
381 days

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. Permit fees to be paid by buyer. These are non-negotiable. Photos are from builder's other projects.

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121 Ontario Avenue Facts & Features

  • Type Single Family
  • Sq. ft. 3,350
  • Price/Sq.ft. $478
  • Lot 0.18 Acres

Details

General

Association/HOA

  • Association: No

School Information

  • School District: Plainedge
  • Elementary School: Charles E Schwarting School
  • Middle Or Junior School: Plainedge Middle School
  • High School: Plainedge Senior High School

Building Information

  • Year Built: 2026

Location/Region

  • County Or Parish: Nassau County
  • Postal City: Massapequa

Rent/Lease Information

  • Lease Considered: No

Tax Information

  • Tax Annual Amount: 12687.46
  • Tax Assessed Value: 488
  • Tax Year: 2024

General Information

  • Disclosures: None
  • Parcel Number: 2489-52-189-00-1786-0
  • Property Condition: New Construction
  • Property Sub Type: Single Family Residence
  • Property Type: Residential
  • Senior Community: No
  • Special Listing Conditions: None

Interior

Parking Information

  • Garage Spaces: 2
  • Garage: Yes

Beds/Baths

  • Bathrooms Full: 3
  • Bathrooms Half: 1
  • Bathrooms Total: 4
  • Bedrooms Total: 5

Building Interior

  • Building Area Source: Plans
  • Building Area Total: 3350
  • Building Area Units: Square Feet

General Information

  • Appliances: Dishwasher,ENERGY STAR Qualified Appliances,Gas Range,Microwave,Refrigerator,Stainless Steel Appliance(s),Tankless Water Heater
  • Cooling: Central Air,ENERGY STAR Qualified Equipment
  • Fireplace Features: Family Room,Gas
  • Fireplace: Yes
  • Fireplaces Total: 1
  • Flooring: Hardwood
  • Heating: Forced Air
  • Interior Features: First Floor Bedroom,First Floor Full Bath,Crown Molding,Double Vanity,Eat-in Kitchen,Formal Dining,High Ceilings,Kitchen Island,Primary Bathroom,Open Floorplan,Open Kitchen,Quartz/Quartzite Counters,Recessed Lighting,Sound System,Speakers,Walk-In Closet(s),Washer/Dryer Hookup
  • Laundry Features: Gas Dryer Hookup,Laundry Room,Washer Hookup
  • Levels: Three Or More
  • Living Area: 3350
  • Living Area Source: Plans
  • Rooms Total: 9
  • Spa: No
  • Window Features: ENERGY STAR Qualified Windows,Tilt Turn Windows

Exterior

Lot Information

  • Lot Size Acres: 0.1837
  • Lot Size Dimensions: 80x100
  • Lot Size Square Feet: 8000
  • Water Source: Public

Waterfront/View

  • Waterfront: No

Building Exterior/Construction

  • Architectural Style: Colonial
  • Construction Materials: Blown-In Insulation,Frame,Stone,Vinyl Siding
  • Direction Faces: South
  • Property Attached: No

General Information

  • Carport: No
  • Pool Private: No
  • Sewer: Public Sewer
  • Utilities: Cable Available,Electricity Connected,Natural Gas Connected,Sewer Connected,Water Connected

121 Ontario Avenue Monthly Cost

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* All calculations are estimates and provided by Reliance Network, for informational purposes only. Actual amounts may vary. ** Assumes 6.50% APR, 20% down payment, and conventional 30-year fixed rate first mortgage. Rates cited are for instructional purposes only; current rates are subject to change at any time without notice. You should not make any decisions based simply on the information provided. Additional required amounts such as taxes, insurance, homeowner association dues, assessments, mortgage insurance premiums, flood insurance or other such required payments should also be considered. Contact your mortgage company for current rates and additional information. Any mortgage broker or insurance agent that may appear is independent and is not affiliated with, endorsed by, or provided by the MLS.

121 Ontario Avenue Market Data

Based on the last 30 days in this zip code

$976,678
Average List Price
$489
Average Price per Square Foot
40
Properties Sold
85
Average Days on Market
209
Properties for Sale
Calculations provided by Reliance Network

121 Ontario Avenue History

Date Event Value Agent
3/19/2026Source: OneKey MLS Price Increase
$1,599,999 3.2%
6/13/2025Source: OneKey MLS Added to Database
June 13, 2025
2/21/2025Source: OneKey MLS Status Change
Closed
1/13/2025Source: OneKey MLS Status Change
Pending
12/12/2024Source: OneKey MLS Added to Database
December 12, 2024
Listing provided courtesy of LA Rosa Realty New York LLCSeth Patlin- MLS# 877613MLS ProviderContact Information: 516-942-2003