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New York>Suffolk County>Ronkonkoma

429 Ontario StreetRonkonkoma, NY 11779

For Sale

$719,999

Smart Buyer Rebate $5,500

Completely Renovated In 2022 ~ 3 Bedroom (Possible 5BR), 2 Full Bath Ranch Fully Fenced with PVC Fencing In Connetquot School District. Eat In Kitchen with Skylight, Soft Close Cabinets, Samsung Stainless Steel Appliances And Quartz Countertops. Hi Hats, Hardwood Floors Thru Out Main Level, Full Main Bath with Skylight. Legal With CO Full Basement with Separate Side Above Ground Entrance Features Egress Window, Large Rec Room, and Den. Roof, Siding, Windows, Boiler, Oil Tank, CAC And Driveway, All New Plumbing And Electric with Electrical Underwriters Cert All On .32 Acres.. Square Footage Includes Legally Finished Basement.
Beautifully gut-renovated to the studs in 2022, this exceptional property features extensive updates including new electrical, plumbing, roof, gutters, windows, siding, and more.
The expansive bi-level backyard is an outdoor paradise, featuring hundreds of square feet of custom paver work, custom stone retaining walls and railings, over 6,000 square feet of concrete and stone hardscaping, professional landscaping, water-runoff drainage, outdoor enclosures, and a private basketball court.
A rare combination of comprehensive renovation, quality craftsmanship, and exceptional outdoor living—truly move-in ready and designed for both everyday living and entertaining.

Listed by Khuram Goondall

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Signature Premier Properties

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917-415-5764

Last updated August 30, 2026

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Source: OneKey #1040582

Listing Facts

  • TypeSingle-family
  • NeighborhoodRonkonkoma
  • Bedrooms3
  • Bathrooms2
  • Days on Prevu20
  • Taxes$11,519.66/year
  • Size2,300 sqft
  • Price per sqft$313

Amenities

  • Dishwasher
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

08/27/2026
Status changed to Active
$719,999
08/27/2026
Listed by Signature Premier Properties
$719,999
  1. 08/27/2026$719,999
    Status changed to Active
  2. 08/27/2026$719,999
    Listed by Signature Premier Properties

Property Details for 429 Ontario Street

Exterior

Construction

  • Property Condition: Updated/Remodeled
  • Window Features: Skylight(s)
  • Year Built: 1965
  • Architectural Style: Ranch
  • Construction Materials: Frame, Vinyl Siding
  • Exterior Features: Basketball Court, Lighting

Features

  • Fencing: Back Yard

Measurements

  • Building Area Total: 2,300
  • Building Area Units: Square Feet
  • Lot Features: Back Yard, Front Yard, Near Public Transit, Near School, Near Shops, Paved
  • Lot Size Acres: 0.32
  • Lot Size Square Feet: 13,939

Financial

Taxes

  • Parcel Number: 0500-032-00-02-00-060-000
  • Tax Annual Amount: $11,519.66
  • Tax Assessed Value: $34,700.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Dishwasher, Electric Range, Exhaust Fan, Microwave, Refrigerator, Stainless Steel Appliance(s), Tankless Water Heater
  • Flooring: Ceramic Tile, Hardwood
  • Interior Features: First Floor Bedroom, First Floor Full Bath, Ceiling Fan(s), Eat-in Kitchen, Kitchen Island, Quartz/Quartzite Counters, Washer/Dryer Hookup

Measurements

  • Living Area: 2,300
  • Living Area Source: Public Records

Rooms

  • Basement: Finished, Full
  • Has Basement: Yes
  • Bathrooms Full: 2
  • Bathrooms Total Integer: 2
  • Bedrooms Total: 3
  • Rooms Total: 9

Parking

Parking

  • Parking Features: Driveway
  • Parking Total: 8

Schools

Elementary School

  • Elementary School: Edith L Slocum Elementary School
  • Elementary School District: Connetquot

High School

  • High School: Connetquot High School
  • High School District: Connetquot

Middle or Junior School

  • Middle Or Junior School: Ronkonkoma Middle School
  • Middle Or Junior School District: Connetquot

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Baseboard, ENERGY STAR Qualified Equipment, Hot Water, Oil
  • Laundry Features: Electric Dryer Hookup, In Basement
  • Sewer: Cesspool
  • Utilities: Electricity Connected, Trash Collection Public, Water Connected
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 3 bedrooms and 2 bathrooms in this single-family home at 429 Ontario Street.

What schools are nearby to 429 Ontario Street?

Nearby schools include the Edith L Slocum Elementary School, Ronkonkoma Middle School, and Connetquot High School.

Does this single-family home have parking?

Yes, there are 8 parking spaces available for 429 Ontario Street.

What are the annual taxes for 429 Ontario Street?

Annual taxes for this single-family home are estimated at $11,519.

How does 429 Ontario Street compare to other single-family homes in Ronkonkoma?

This single-family home is listed 9% above the average price for single-family homes in Ronkonkoma and has been on the market for 43 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 2,300 sqft.

429 Ontario Street is a 3-bedroom, 2-bath single-family home for sale in Ronkonkoma NY 11779. Available on Prevu for 20 days at $719,999. This home features 2,300 square feet of living space, located in Ronkonkoma. The median listing price for single-family homes in this area is $619,999. Nearby schools include Edith L Slocum Elementary School, Ronkonkoma Middle School, and Connetquot High School. The home offers dishwasher, air conditioning, and parking. Browse more single-family home listings in Suffolk County.

The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2026, OneKey™ MLS. All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.