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MLS ID KEY1041948Last updated Sep 12, 2026

Single Family

31 Deer Run

Pending · Islip · Suffolk County, NY 11730

Bedrooms
4 Beds
Bathrooms
4 Baths
Year built
1987
Est. monthly taxes
$1,677.75
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About this home

Welcome to 31 Deer Run, a custom built masterpiece nestled in the highly sought after and coveted Deer Run Estates, in the heart of East Islip. This 4 bedroom, 2 full/2 half bath residence makes its first impression with a jaw dropping 1,600 lb pivot entry door, hand crafted by Modern Steel Doors of Tucson, setting the tone for the craftsmanship found throughout. The chef’s kitchen is a true showstopper, with custom Milano cabinetry, quartz countertops, and a complete Jenn Air suite including microwave, dishwasher, stove, hood, warming drawer, and refrigerator. Throughout the home, custom Milano interior doors and radiant heated polished porcelain floors flow through every room for consistent, luxurious comfort. Cozy up beside the natural gas fireplace, or retreat to the primary suite, a private oasis with a walk-in shower and floating soaking tub that leads directly out to the back deck. A versatile bonus room rounds out the interior, offering space for a gym, media room, or home office. Outside, the professionally landscaped grounds are fully fenced with rear gates and framed by a long blacktop driveway, with an exterior finished in Stucco/Gatto plastering lined with 1.5 inch foam completed in 2023, and a roof replaced in 2020. All electric on the property runs underground for a clean, unobstructed look, and all gutters flow to dry wells. The garage is heated with a built in second refrigerator, pull down attic and is fitted with a truly one of a kind door custom made in Belize, originally built for a parking garage in NYC. The backyard is a resort style oasis, anchored by a newly lined in ground pool with an automatic pool vacuum. Entertain year round with a natural gas BBQ and fire pit, both fed by dedicated natural gas lines, or unwind by the Trex composite decking and ornamental pond. Behind the scenes, the home is just as impressive: a Navien boiler and hot water heater installed in 2022, 3 zone central air conditioning less than 3 years old, a central vacuum system, a large capacity washer and dryer, and a whole house appliance package from 2020 and a whole home hard wired security system with 3 Ring cameras plus 8 additional cameras to provide comprehensive peace of mind. Additional highlights include over 50 owned solar panels, paid in full, a solid stainless steel dolphin fountain sculpture, a electronic doggie door, garbage disposal, decorative planters flanking the driveway, side lights on the garage, and a shed for pool storage and equipment. Ideally situated just moments from pristine beaches, fine dining, boutique shopping, picturesque parks, and convenient transportation, this exceptional residence offers the very best of Long Island living. A truly one of a kind estate of this caliber rarely comes to market. Don’t miss your opportunity to call 31 Deer Run home.

Listing snapshot

Days on site
59 days
Listed on MLS
Aug 24, 2026
Full baths
2
Half baths
2
Annual property tax (MLS)
$20,133
Tax year
2026
Area source (MLS)
Other
Listing brokerage
OverSouth LLC
MLS ID
KEY1041948
Last updated
Sep 12, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
1987
Garage
Yes
Garage spaces
2
Parking
Attached, Driveway, Garage, Garage Door Opener, Heated Garage, On Street
Water source
Public
Sewer
Public Sewer
Utilities
Cable Connected, Electricity Available, Natural Gas Available, Sewer Available, Trash Collection Public, Underground Utilities, Water Available

Interior features

Basement
Crawl Space
Heating
Radiant, Radiant Floor
Cooling
Central Air
Interior
First Floor Bedroom, First Floor Full Bath, Built-in Features, Cathedral Ceiling(s), Ceiling Fan(s), Central Vacuum, Chefs Kitchen, Eat-in Kitchen, ENERGY STAR Qualified Door(s), Entrance Foyer, Formal Dining, High Ceilings, Kitchen Island, Open Kitchen, Pantry, Primary Bathroom, Master Downstairs, Quartz/Quartzite Counters, Recessed Lighting, Soaking Tub, Storage, Walk-In Closet(s)
Appliances
Dishwasher, Disposal, Dryer, Gas Cooktop, Microwave, Oven, Refrigerator, Stainless Steel Appliance(s), Tankless Water Heater, Washer, Gas Water Heater
Flooring
Tile
Fireplace
Yes
Fireplaces
1

Exterior features

Architectural style
Contemporary
Construction materials
Frame, Stucco
Private pool
Yes

Schools (MLS)

Elementary school
John F Kennedy Elementary School
Elementary school district
East Islip
Middle school
East Islip Middle School
Middle school district
East Islip
High school
East Islip High School
High school district
East Islip

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

  1. Listing updated from MLS
  2. MLS status changed
  3. First seen on this site

Location

Islip · Suffolk County, NY 11730Show interactive map
31 Deer Run

Islip · Suffolk County, NY 11730

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Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
MLS amounts are prefilled when available and can be edited. Confirm what fees include. Unknown fee frequencies cannot be converted automatically.Property expenses: MLS values where available; missing values stay blank.

Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

Estimated monthly total of entered costs—

Excludes insurance, mortgage insurance, special assessments and lender fees. MLS taxes may reflect abatements or exemptions and can change.

Listing data is supplied by the MLS and may change without notice.