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12 Mountain StreetRonkonkoma, NY 11779

For Sale

$600,000

Smart Buyer Rebate $2,500

Welcome to this inviting 3-bedroom, 2-bath ranch in Ronkonkoma, offering a thoughtful combination of recent improvements, everyday comfort, and practical living spaces. The beautifully renovated kitchen, updated within the past two years, serves as a welcoming centerpiece of the home, offering a refreshed space for relaxing, cooking, and gathering. The convenient ranch-style layout is complemented by a full finished basement with a separate walk-out entrance, providing additional space and flexibility. Notable improvements include a roof replaced in 2019, a 200-amp electrical panel, and an oil burner and hot water tank approximately five years old. Four-zone oil-fired baseboard heating and ductless air conditioning units installed approximately six years ago provide options for year-round temperature control. Outside, a five-zone in-ground sprinkler system services both the front and rear yards. Additional features include kitchen appliances approximately six years old and a washer and dryer replaced approximately three years ago. Conveniently situated just minutes from the Ronkonkoma Long Island Rail Road station, this property offers access to regional transportation. With its combination of recent updates, functional features, and convenient location, this ranch presents an opportunity to enjoy all that the property has to offer.

Listed by Andrew Fraczak

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OverSouth LLC

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631-902-0020

Last updated October 31, 2026

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Source: OneKey #1061438

Listing Facts

  • TypeSingle-family
  • NeighborhoodCentereach
  • Bedrooms3
  • Bathrooms2
  • Days on Prevu19
  • Taxes$12,829.42/year
  • Size1,800 sqft
  • Price per sqft$333

Amenities

  • Dishwasher
  • Parking

Location

Mortgage Calculator

Listing History

10/22/2026
Status changed to Active
$600,000
10/22/2026
Price Increased
$600,000
10/20/2026
Status changed to Temporarily Off Market
$550,000
10/12/2026
Listed by OverSouth LLC
$550,000
  1. 10/22/2026$600,000
    Status changed to Active
  2. 10/22/2026$600,000
    Price Increased
  3. 10/20/2026$550,000
    Status changed to Temporarily Off Market
  4. 10/12/2026$550,000
    Listed by OverSouth LLC

Property Details for 12 Mountain Street

Exterior

Construction

  • Year Built: 1965
  • Architectural Style: Ranch
  • Construction Materials: Frame

Features

  • Fencing: Fenced, Full, Perimeter, Vinyl

Measurements

  • Building Area Total: 3,152
  • Building Area Units: Square Feet
  • Lot Size Acres: 0.25
  • Lot Size Square Feet: 10,890

Financial

Taxes

  • Parcel Number: 0200-598-00-02-00-018-000
  • Tax Annual Amount: $12,829.42
  • Tax Assessed Value: $2,700.00
  • Tax Year: 2026

Interior

Features

  • Appliances: Dishwasher, Electric Oven, Microwave, Refrigerator
  • Flooring: Carpet, Hardwood
  • Interior Features: First Floor Bedroom, First Floor Full Bath, Ceiling Fan(s), Recessed Lighting, Washer/Dryer Hookup

Measurements

  • Living Area: 1,800
  • Living Area Source: Other

Rooms

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

Parking

Parking

  • Garage Spaces: 1
  • Garage: Yes
  • Parking Features: Driveway, Garage
  • Parking Total: 7

Schools

Elementary School

  • Elementary School: Holbrook Road School
  • Elementary School District: Middle Country

High School

  • High School: Centereach High School
  • High School District: Middle Country

Middle or Junior School

  • Middle Or Junior School: Dawnwood Middle School
  • Middle Or Junior School District: Middle Country

Utilities

Equipment

  • Cooling: Ductless, Wall/Window Unit(s)
  • Heating: Baseboard, Oil
  • Laundry Features: Electric Dryer Hookup, In Basement, Washer Hookup
  • Sewer: Cesspool
  • Utilities: Cable Available, Cable Connected, Electricity Available, Electricity Connected, Water Available, 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 12 Mountain Street.

What schools are nearby to 12 Mountain Street?

Nearby schools include the Holbrook Road School Elementary School, Dawnwood Middle School, and Centereach High School.

Does this single-family home have parking?

Yes, there is 1 parking space available for 12 Mountain Street.

What are the annual taxes for 12 Mountain Street?

Annual taxes for this single-family home are estimated at $12,829.

How does 12 Mountain Street compare to other single-family homes in Centereach?

This single-family home is listed 16% below the average price for single-family homes in Centereach and has been on the market for 53 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 1,800 sqft.

12 Mountain Street is a 3-bedroom, 2-bath single-family home for sale in Ronkonkoma NY 11779. Listed on Prevu for 19 days at $600,000. This includes a recent price increase of $50,000. This home features 1,800 square feet of living space, located in Centereach. The median listing price for single-family homes in this area is $689,000. Nearby schools include Holbrook Road School Elementary School, Dawnwood Middle School, and Centereach High School. The home offers dishwasher and parking. View other 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.