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345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
345 Ontario Street, Ronkonkoma NY 11779
New York>Suffolk County>Ronkonkoma

345 Ontario StreetRonkonkoma, NY 11779

For Sale

$550,000

Smart Buyer Rebate $1,250

Some homes check boxes. This one opens doors. Welcome to 345 Ontario Street, a warm, well-loved home in Ronkonkoma ready for its next chapter. 3 bedrooms, 1.5 baths, layout that actually works. The kitchen was recently renovated, not a flip job, actually done right. Modern finishes, thoughtful design, flows into the main living areas naturally. First-floor bedroom is a standout. Multigenerational living, guest privacy, or just flexibility, it's already built in. Downstairs you'll find a bonus space with its own outside entrance. Home office, hobby room, creative use, buyers with imagination will see the potential. Quiet street. Commuter-friendly with LIRR access. This won't last long, get to the open house!

Listed by Conor Hertell

·

OverSouth LLC

·

631-372-7393

Last updated April 29, 2026

·

Source: OneKey #988564

Listing Facts

  • TypeSingle-family
  • NeighborhoodRonkonkoma
  • Bedrooms3
  • Bathrooms2
  • Days on Prevu9
  • Taxes$9,853/year
  • Size1,258 sqft
  • Price per sqft$437

Amenities

  • Dishwasher
  • Washer/Dryer
  • Parking

Location

Mortgage Calculator

Listing History

04/22/2026
Listed by OverSouth LLC
$550,000

Property Details for 345 Ontario Street

Exterior

Construction

  • Year Built: 1942
  • Architectural Style: Cape Cod
  • Construction Materials: Frame

Features

  • Fencing: Back Yard

Measurements

  • Building Area Total: 1,716
  • Building Area Units: Square Feet
  • Lot Features: Back Yard, Front Yard, Near Public Transit, Near School, Near Shops
  • Lot Size Acres: 0.15
  • Lot Size Square Feet: 6,534

Financial

Taxes

  • Parcel Number: 0500-031-00-04-00-072-000
  • Tax Annual Amount: $9,853.00
  • Tax Assessed Value: $30,200.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Dishwasher, Dryer, Electric Oven, Microwave, Washer
  • Interior Features: First Floor Bedroom, Washer/Dryer Hookup

Measurements

  • Living Area: 1,258
  • Living Area Source: Public Records

Rooms

  • Basement: Partial, Walk-Out Access
  • Has Basement: Yes
  • Bathrooms Full: 1
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 2
  • Bedrooms Total: 3
  • Rooms Total: 5

Parking

Parking

  • Parking Features: Driveway
  • Parking Total: 2

Schools

Elementary School

  • Elementary School: Cherokee Street 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: Wall/Window Unit(s)
  • Heating: Baseboard, Oil
  • Laundry Features: In Basement
  • Sewer: Cesspool
  • Utilities: Electricity 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 345 Ontario Street.

What schools are nearby to 345 Ontario Street?

Nearby schools include the Cherokee Street Elementary School, Ronkonkoma Middle School, and Connetquot High School.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 345 Ontario Street.

What are the annual taxes for 345 Ontario Street?

Annual taxes for this single-family home are estimated at $9,853.

How does 345 Ontario Street compare to other single-family homes in Ronkonkoma?

This single-family home is listed 15% below the average price for single-family homes in Ronkonkoma and has been on the market for 35 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 1,258 sqft.

345 Ontario Street is a 3-bedroom, 2-bath single-family home for sale in Ronkonkoma NY 11779. Available on Prevu for 9 days at $550,000. This property features 1,258 square feet of living space, located in Ronkonkoma. The median listing price for single-family homes in this area is $584,495. Nearby schools include Cherokee Street Elementary School, Ronkonkoma Middle School, and Connetquot High School. The home offers dishwasher, parking, and washer/dryer. Explore 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.