3 Acre Estate With 2 Acre Single And Separate Building Lot + 1 Acre W/ Outstanding 2-story Waterfront New England-style Farm/ranch With Dock On A Charming Avenue In Islip. Property Was Once Part Of A Larger Estate That Was Used As A Summer Residence In The Gilded Age In The Late 1800's. 7 Br 4.5 Ba With A Great Family Floor Plan. Spacious First Floor Primary Bedroom With Ensuite Bath, Laundry And Loads Of Closet Space. ?formal Living Room With Fireplace Leads Out To Four Season Room With Bluestone Floors Which Opens To A 1-acre Beautifully Appointed Property With Mature Plantings Partially Designed By Renowned Landscape Architect Frederick Law Olmsted, Known For Designing Central Park. Formal Dining Room, Library/den With Built-in Bookshelves. Large Kitchen And Breakfast Area With Vaulted Ceilings And Wood Stove Leads Out Into A Enclosed Greenhouse/potting Space. 3 Nice Size Bedrooms, Full Bath And 1/2 Bath For Guests Complete The First Floor. 2nd Floor Has The 3 Remaining Bedrooms. Bedroom 5 Has A Full Bath With Walk In Shower, Bedroom 6 Is Currently Used As A Study With Accommodations For Guests And Bedroom 7 Has Built-ins And A Full Bath With Tub/shower Combo. ?this One-of-a-kind Gem Appeals To The Horticulturist And Boater Alike. 2 Separate Acres With 40' X 37' Carriage House Available To Combine Into 3 Acre Sprawling Estate That Truly Has It All. 3400 Sqft For Whole House, 4100 Sqft With 2 1/2 Bay Garage And Breezeways. 123' Bulkhead/dock W/trex Deck. Great Elevation, X Zone $500. Flood Insurance.