by RH Advisors

See Home Value
Islip 11751 Islip
15 Cedar Avenue Extension
$1,350,000
● House - Off Market

15 Cedar Avenue Extension

Islip, NY 11751
bedrooms
4 Beds
bathrooms
2 Baths, 1 Half Bath
square feet
2,598 Ft²
$8,209
Est. Monthly
2.93%
Cap Rate

About This Property

This exceptional columned Colonial is located in the coveted Bayberry neighborhood, just a short distance from Bayberry Tennis Club and the beach. Flawless in presentation and condition, this home stands out for its refined design, top-quality updates, and unparalleled attention to detail.

The granite kitchen features quality stainless steel appliances (2–3 years old), while the bathrooms have been thoughtfully renovated with high-end, sophisticated finishes. Every space reflects an exacting standard of care and craftsmanship rarely found on the market.

The exterior is just as striking, with a bluestone front porch and patio ideal for entertaining or quiet evenings by the fire pit. A fireplace adds charm and warmth indoors, with the flexibility to be wood-burning, gas, or electric.

Major recent upgrades include a brand-new roof (2025), new HVAC system (2025), professional landscape design, and a whole-house water filtration system with reverse osmosis for drinking water.

This is not just a home-it's a rare opportunity to own a truly immaculate property in one of the area's most desirable and established communities.
Unit Size
2,598 Ft²
Days on Market
72 days
Land Size
0.50 acres
Price per sqft
$500
Property Type
House
Property Taxes
$1,828
HOA Dues
-
Year Built
-

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Last updated: 12 months ago (OneKey MLS #KEY899243)

Price History

Date / Event Date Event Price
Oct 22, 2025 Sold
Sold
Aug 27, 2025 In contract -
In contract
Aug 8, 2025 Listed by Netter Real Estate Inc $1,299,500
Listed by Netter Real Estate Inc
Aug 6, 2020 No longer available -
No longer available
Jun 18, 2020 Listed by Netter Real Estate Inc $895,000
Listed by Netter Real Estate Inc
Stunning Columned Colonial, located in Beautiful Bayberry Area. Pristine, just move in. Home completely renovated over past 5 years including granite kitchen with Viking appliances, designer bathrooms, large bluestone patio for entertaining, professional landscape design, gas fireplace and fire pit, surround sound in and out, and home water filtration system with reverse osmosis for drinking. Short distance to Bayberry Tennis Club and beach. The manager has listed the unit size as 2598 square feet.
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Property Highlights

Garage
Air Conditioning
Fireplace

Building Info

Overview

    General

  • Bedroom Count: 0
  • Building Condition: 0
  • Building Quality: 0
  • Construction Type: 0
  • Building Style: 0
  • Exterior Walls Type: 0
  • Interior Walls Type: 0
  • Roof Shape Type: 0
  • Roof Cover Type: 0
  • Floor Cover: 0
  • Basement Type: 0
  • Basement Area: 0
  • Garage Type: 0
  • Parking Space Count: 0
  • Patio Type: 0
  • Porch Type: 0
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 21,344
  • Lot Size Depth Feet: 1,600
  • Lot Size Frontage Feet: 1,350
  • Total Building Area: 0
  • Building Area: 0

    Heating and Cooling

  • Air Conditioning: 0
  • Heating: 0
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Land Acres: 0000000490
  • Standard Land Use Code: 1001
  • County Land Use Code: 210
  • Legal Description 1: T059H00000000

Neighborhood

  • School District Name: Islip Union Free School District
  • School Tax School District: ISLIP
  • Census Tract: 147402

Zoning

  • Zoning: AAA

Geography

  • District: 0500-4
  • Section: 50.44
  • Parcel: 0500-444.00-02.00-019.001
  • Block: 4000
  • Lot: 200.019
  • Municipality: ISLIP
  • Latitude: 40.7139
  • Longitude: -73.2176

    Address

  • Full Address: 15 Cedar Avenue Ext
  • Address - House Number: 15
  • Address - Street Name: Cedar Avenue
  • Address - Suffix Type: Ext
  • State: NY
  • City Name: Islip
  • Carrier Code: C005
  • 4-Digit Zip Code: 4615
  • Zip Code: 11751

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $0
  • Tax Rate Code Area: 472802

    Appraisal Valuation

  • Standard Deviation: 0.2401
  • Valuation Date: Feb 14, 2024
  • Confidence Score: 66
  • Final Value: 997,482
  • High Value: 1,237,036
  • Low Value: 757,929

    Market Valuation

  • Market Total Value: $881,868
  • Market Land Value: $212,912
  • Market Improvement Value: $668,956

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $64,200
  • Assessed Land Value: $15,500
  • Assessed Improvements Value: $48,700

    Exemptions

  • Homeowner Exemption: Yes

    Sales

  • Current Sale Contract Date: Jul 23, 2012
  • Current Sale Recording Date: Aug 08, 2012
  • Current Sale Price:
  • Current Sale Document Type: 12
  • Previous Sale Recording Date: May 15, 2003
  • Previous Sale Contract Date: May 14, 2003
  • Previous Sale Amount: $614,000
  • Previous Sale Document Type: 12
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About Islip


Similar Homes for Sale

Currently no similar homes around

Nearby Rentals

Unit for rent at 53 Mowbray Avenue, Bay Shore, NY, 11706

$5,500 /mo

  • 3 Beds
  • 2 Baths
  • 2,040 ft²
53 Mowbray Avenue, Bay Shore, NY, 11706 Listing by Nicholas Campasano


Frequently Asked Questions

When was property at 15 Cedar Avenue Extension built and last sold?
The property at 15 Cedar Avenue Extension was built in and last sold on Jul 23, 2012 for $625,000.
How much is this home worth?
The estimated value of the home located at 15 Cedar Avenue Extension is $1,296,016.
What are some comparable homes to 15 Cedar Avenue Extension?
There are currently no comparable homes to 15 Cedar Avenue Extension.

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