Date
Details
Price
Change
Source
2/06/2026
Listed
$584,999
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.
1/20
$584,999 Just Listed
This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.
1/20
Property Description
Welcome home to this well maintained 4 Bedroom 1.5 bath colonial offering comfort and peace of mind. Recent updates include a newer roof (2023) and 2 newer mini split units for efficient cooling. In ground sprinklers make lawn and garden maintenance effortless. Inside you will love the spacious family room featuring a cozy fireplace and convenient access to the half bath. The Eat in kitchen is perfect for everyday meals while the Formal dining room provides an ideal setting for larger gatherings. Upstairs you will find 4 Bedrooms and a full Bathroom. The basement provides excellent storage solutions. An Attached 1 car garage adds everyday convenience. A wonderful opportunity to own a well-cared for home ready to be enjoyed.
Full Property Details
Full Property Details for 15 Mountain St
General
- Price: $584,999
- Taxes: $14,441
- Status: Active
- Type: Single Family
- Source: Long_Island
- MLS ID: 957078
- Updated: 2/6/2026
- Added to Site: 4 day(s) ago
Interior
- Number of Rooms: 8
- Interior Features: Eat-in Kitchen, Formal Dining, Granite Counters, Pantry
- Fireplace: Yes
- Number of Fireplaces: 1
- Appliances: Dishwasher, Dryer, Electric Oven, Refrigerator, Washer
- Laundry Facilities: Yes
- Flooring: Carpet, Combination
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 1
- Half Bathrooms: 1
Bedrooms
- Total Bedrooms: 4
Other Rooms
- Laundry: In Basement
Parking
- Garage: Yes
- Garage Spaces: 1
- Parking Features: Driveway, Garage
Location
- County: Suffolk County
- Cross Streets: Holbrook Road
School Information
- High School District: Middle Country
- Elementary School: Holbrook Road School
- Middle School: Dawnwood Middle School
- High School: Centereach High School
Heating & Cooling
- Cooling Type: Ductless, Wall/Window Unit(s)
- Heating Type: Oil
- Heating Zones: 2
Utilities
- Sewer: Cesspool
- Water: Public
- Utility Description: Electricity Connected, Water Connected
Structural Information
- Architectural Style: Colonial
- Detached/Attached: Detached
- Construction: Frame, Vinyl Siding
- Basement: Yes
- Basement Desc.: Partial
- Building Size: 1684
- Square Feet: 1,684
- Sq. Ft. Source: Public Records
- Year Built: 1964
Lot Features
- Lot Size (Acres): 0.25
- Lot Size (Sq. Ft.): 10,890
- Fence: Yes
- Lot Features: Back Yard, Front Yard, Level, Sprinklers In Front, Sprinklers In Rear
- Fencing (Description): Back Yard
Financial Considerations
- Taxes Include: Trash
- Tax Amount: $14,441.98
Disclosures and Reports
- Special Conditions: None
- Property ID: 0200-598-00-02-00-032-000
- Block: 2
- Lot Number: 32
Listed by Realty Connect USA LI
We Value Your Privacy
We Value Your Privacy
We Value Your Privacy
Listing agents
— 15 Mountain St —
Realty Connect USA LI
Realty Connect USA LI
631-881-5160
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 15 Mountain St
School District:Middle Country Central School District
| Name | Grades | Distance |
|---|---|---|
Holbrook Road School 170 Holbrook Road, Centereach, NY 11720 | 1-5 | 0.3 mi |
Unity Drive Kindergarten Pre K Center 11 Unity Drive, Centereach, NY 11720 | PK-K | 1.7 mi |
Dawnwood Middle School 10 43rd Street, Centereach, NY 11720 | 6-8 | 2.3 mi |
Centereach High School 14 43rd Street, Centereach, NY 11720 | 9-12 | 2.3 mi |
Disclaimer:
School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 15 Mountain St
Tax History
Tax History for 15 Mountain St
Year
Property Taxes
Change
Tax Assessment
Change
2020
100%
$3,050
—
2022
-100%
$3,050
—
2016
$8,779
-7%
$3,050
—
2020
$9,432
3%
$3,050
—
2018
$9,189
4%
$3,050
—
2017
$8,862
—
$3,050
—
2016
$8,839
—
$3,050
—
2015
$8,800
2%
$3,050
—
2015
$8,624
-1%
$3,050
—
2014
$8,677
3%
$3,050
—
2013
$8,405
—
$3,050
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 15 Mountain St
15 Mountain Street, Ronkonkoma, NY 11779 (MLS# 957078) is a Single Family property with 4 bedrooms, 1 full bathroom and 1 partial bathroom. 15 Mountain Street is currently listed for $584,999 and was received on February 06, 2026. Want to learn more about 15 Mountain Street? Do you have questions about finding other Single Family real estate for sale in Ronkonkoma? You can browse all Ronkonkoma real estate or contact a Coldwell Banker agent to request more information.