by RH Advisors

See Home Value
$1,725,000
● House - Off Market

11 Dolphin Lane

Islip, NY 11795
bedrooms
4 Beds
bathrooms
3 Baths
square feet
3,061 Ft²
$10,525
Est. Monthly

About This Property

This modern luxury West Islip waterfront home is nestled on a peaceful, private cul-de-sac. The sunlit foyer welcomes you into an inviting flow, leading to a spacious living room with a sleek electric fireplace. The home transitions effortlessly to the formal dining room and a balcony overlooking a lush, landscaped backyard. Outside, an entertainer's dream awaits: a saltwater Gunite pool, hot tub, and 75 feet of prime waterfront- New outdoor kitchen with icemaker and refrigerator, perfect for relaxation or unforgettable gatherings.

At the heart of the home is a chef's kitchen featuring a custom island, brand-new Thermador refrigerator, Beverage refrigerator, icemaker, stainless steel appliances, and Energy Star efficiency. The primary suite offers a spa-inspired bath with radiant-heated floors and a custom walk-in wardrobe, heated towel rack, while two additional bedrooms and a stylish full bath complete the main level, all enhanced by Very Warm Mocha Jova Stained Oak Wood  Flooring. The lower level provides incredible flexibility, featuring a spacious bedroom, a cozy den with a wood-burning fireplace, a cedar closet, a full bath, and a laundry room with dual washers and dryers, also another icemaker and refrigerator, and a custom dog washing station. A spacious heated two-car garage ensures comfort and storage year-round. Roof only 8 years young, Renovated in 2022-2023, this home boasts Andersen 400 series windows, Hunter Douglas remote blinds, integrated speakers, and a fully upgraded saltwater pool with new pipes, LED lighting, and marble dusting. Outdoor features include a new cedar privacy fence, Outdoor kitchen, and a 75-foot bulkhead with a 22,000-pound boat lift, jet ski lifts, and a 100-amp dock panel-perfect for boating enthusiasts.

Every detail exudes elegance and luxury. Schedule your private tour today.
Unit Size
3,061 Ft²
Days on Market
77 days
Land Size
0.25 acres
Price per sqft
$555
Property Type
House
Property Taxes
$2,178
HOA Dues
-
Year Built
-

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Last updated: 3 months ago (OneKey MLS #KEY989155)

Price History

Date / Event Date Event Price
Jul 20, 2026 Sold
Sold
May 7, 2026 In contract -
In contract
Apr 25, 2026 Listed by Compass Greater NY LLC $1,700,000
Listed by Compass Greater NY LLC
Dec 13, 2025 Temporarily off market -
Temporarily off market
Sep 29, 2025 Listed by Netter Real Estate Inc $1,760,528
Listed by Netter Real Estate Inc
Located on a quiet, private cul-de-sac, this pristine wide-line Hi Ranch offers the perfect blend of luxury, privacy, and waterfront living. The entry foyer leads to a spacious living room with an electric fireplace, formal dining room with access to a second-story balcony overlooking the yard, saltwater gunite pool, hot tub, and 75' of waterfront. The custom center-island kitchen includes a large pantry, with stainless steel and Energy Star appliances. The primary suite features a luxurious private bath and an adjacent lavish, custom-designed walk-in wardrobe. Two additional bedrooms and a full bath complete the upper level, which boasts dark walnut-stained hardwood floors. Radiant heat floors are found in all bathrooms and the laundry room. The lower level includes a large bedroom, den with a wood-burning fireplace and ceramic flooring, full bath, cedar closet, oversized laundry room with dual washers/dryers and a custom built in dog washing station to keep your four-legged friends clean and pampered without leaving home, and access to a heated 2-car garage. Upgrades include all new Andersen windows (except three rear), 2023 updates throughout, central air with an additional ductless unit in the primary suite, and a whole-home H2O system. The 75’ bulkhead (replaced in 2015) includes a 22,000-lb boat lift, one jet ski lift, and a dedicated 100-amp dock panel. Flood insurance and elevation certificate available upon request. This home is truly in immaculate, nearly "unlived-in" condition—an exceptional waterfront opportunity.
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Property Highlights

Garage
Air Conditioning
Fireplace
With View

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: 10,890
  • Lot Size Depth Feet: 1,500
  • Lot Size Frontage Feet: 750
  • 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
  • Subdivision: MAP OF CEDAR POINT COLONY SECTION 2
  • Land Acres: 0000000250
  • Standard Land Use Code: 1001
  • County Land Use Code: 210
  • Legal Description 1: X2197235Y169265 T054H00000000

Neighborhood

  • School District Name: West Islip Union Free School District
  • School Tax School District: WEST ISLIP
  • Census Tract: 146902

Zoning

  • Zoning: A

Geography

  • District: 0500-4
  • Section: 50.47
  • Parcel: 0500-478.00-04.00-047.000
  • Block: 8000
  • Lot: 400.047
  • Municipality: ISLIP
  • Latitude: 40.688
  • Longitude: -73.2884

    Address

  • Full Address: 11 Dolphin Ln
  • Address - House Number: 11
  • Address - Street Name: Dolphin
  • Address - Suffix Type: Ln
  • State: NY
  • City Name: West Islip
  • Carrier Code: C024
  • 4-Digit Zip Code: 5017
  • Zip Code: 11795

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $0
  • Tax Rate Code Area: 472809

    Appraisal Valuation

  • Standard Deviation: 0.2147
  • Valuation Date: Feb 14, 2024
  • Confidence Score: 70
  • Final Value: 979,500
  • High Value: 1,189,888
  • Low Value: 769,113

    Market Valuation

  • Market Total Value: $1,149,725
  • Market Land Value: $281,593
  • Market Improvement Value: $868,132

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $83,700
  • Assessed Land Value: $20,500
  • Assessed Improvements Value: $63,200

    Exemptions

  • Homeowner Exemption: Yes

    Sales

  • Current Sale Contract Date: Mar 29, 2023
  • Current Sale Recording Date: Jun 06, 2023
  • Current Sale Price:
  • Current Sale Document Type: 27
  • Previous Sale Recording Date: Aug 21, 1998
  • Previous Sale Contract Date: Aug 04, 1998
  • Previous Sale Amount: $415,000
  • Previous Sale Document Type: 27
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 West Islip


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214 Oak Neck, Islip, NY, 11795 Listing by Kareen J. Mendoza Faras


Frequently Asked Questions

When was property at 11 Dolphin Lane built and last sold?
The property at 11 Dolphin Lane was built in and last sold on Mar 29, 2023 for $950,000.
How much is this home worth?
The estimated value of the home located at 11 Dolphin Lane is $1,704,219.
What are some comparable homes to 11 Dolphin Lane?
There are currently no comparable homes to 11 Dolphin Lane.

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