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MLS ID KEY934317Last updated Oct 21, 2026

Single Family

9 MITCHELL DUNES Lane

Active · East Hampton · Suffolk County, NY 11930

Bedrooms
7 Beds
Bathrooms
9 Baths
Year built
1994
Est. monthly taxes
$3,000
Property gallery0 / 50
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About this home

OCEANFRONT MANSION MASTERPIECE YOUR 5-STAR OCEAN RESORT PARADISE AWAITS!!! Simply beyond compare, it will be love at first sight with this awe-inspiring 8,000 SF custom oceanfront mansion retreat on two magnificent acres with 200 feet of private oceanfront. An artistic masterpiece of modern architecture, combined with a world-class private beach, breathtaking ocean views, and cool Atlantic breezes provides the ultimate setting for luxurious living, relaxation, inspiration, and unmatched privacy. Located off an exclusive private cul-de-sac lane, down a 400 foot-secluded drive, you are greeted with a contemporary masterwork of three extraordinary stories. majestically facing the Big Blue. You will be dazzled by the soaring 11 foot ceilings and floor-to-ceiling walls of glass throughout, affording amazing ocean panoramas. Surrounding the home is gorgeous landscaping with lush gardens, shrubbery and privacy trees creating a Zen setting. Not to mention over 4,000 square feet of spectacular new decking and exquisite glass railings. Inside, you will fall in love with the unparalleled new renovation. Each room in this unrivaled home provides the ultimate private beach refuge including 7 enormous bedrooms, 9 new bathrooms, 2 tremendous living rooms, 2 unparalleled new kitchens, and 2 spectacular fireplaces. There is a new drop-dead gorgeous state-of-the-art kitchen facing the ocean that seats 18 -- perfect for grand-scale entertaining! This chef's dream includes a gigantic Sub Zero refrigerator and freezer, Wolf stove and microwave, Miele dishwasher, and water filtration system. Relax in the incredible media room or workout in the amazing gym, while your children play in the large playroom or fantastic new outdoor private swing set/play system with awesome playhouse. The luxurious two-car garage has a car charger, and there is a tremendous heated gunite ionized-water "healthy" pool with a dazzling large jacuzzi. You will love having two outdoor showers, an all-weather tennis court, over 4,000 SF of huge-wrap-around new decks on all three levels, two new built-in outdoor gas grills, skylights, and so much more. A private walkway to your magical backyard beach makes this the ultimate getaway of your dreams. The upper floor features a dazzling living room facing the ocean with a gorgeous working fireplace and large skylights. Also on this level is the luxuriously large master suite that includes a gigantic marble master bathroom with Jacuzzi tub facing the ocean, two-person shower, sauna, and huge walk-in closet. The glassed-in new designer kitchen and dining room are simply outstanding, and there is also a fantastic media room. Children or guests will love the large guest bedroom that feels like a second master suite on the upper level, with new marble en-suite bathroom featuring double sinks. The middle level includes a family room of grand proportion with a 75" TV and working fireplace right off the outstanding oceanfront pool with enormous deck and second glamorous new kitchen for entertaining by the pool along, in addition to a new powder room. There are four huge bedrooms on the floor, each with a stunning new marble en-suite bathroom and luxury fixtures. Your guests will feel pampered! The first level features a fantastic gym, another large guest bedroom with new en-suite marble bathroom, a terrific playroom, and two-car garage with Electric Vehicle Car Charger. This Rockstar custom home was designed and built by award-winning architect Bill Hayes. With three levels of glamorous, huge living and entertaining space, you will have your dream oceanfront oasis for your family and friends, offering the ultimate paradise of privacy and security. Perfectly positioned on one of the most coveted and private beaches in the world in beautiful Amagansett, between the sophisticated town of East Hampton and the gorgeous natural environs of Montauk…your modernistic oceanfront castle, like no other in the Hamptons, beckons.

Listing snapshot

Days on site
59 days
Listed on MLS
Nov 13, 2025
Full baths
7
Half baths
2
Annual property tax (MLS)
$36,000
Tax year
2025
Association / maintenance fees (MLS)
$1,500 / Annually
Fees include (MLS)
Common Area Maintenance, Other, Sewer, Snow Removal
Area source (MLS)
Other
Listing brokerage
Carol E Levy
MLS ID
KEY934317
Last updated
Oct 21, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
1994
Garage
Yes
Garage spaces
2
Total parking
15
Parking
Assigned
Water source
Public
Sewer
Cesspool
Utilities
Cable Available, Electricity Available, Phone Connected, Propane, Sewer Connected, Trash Collection Private, Water Connected

Interior features

Basement
Walk-Out Access
Heating
Oil
Cooling
Central Air
Interior
Built-in Features, Cathedral Ceiling(s), Double Vanity, Eat-in Kitchen, Entertainment Cabinets, Entrance Foyer, Formal Dining, High Ceilings, High Speed Internet, His and Hers Closets, Kitchen Island, Natural Woodwork, Open Kitchen, Quartz/Quartzite Counters, Recessed Lighting, Sauna, Smart Thermostat, Soaking Tub, Sound System, Speakers, Storage, Walk-In Closet(s), Wired for Sound
Appliances
Cooktop, Dishwasher, Disposal, Electric Cooktop, Electric Oven, Electric Range, Electric Water Heater, ENERGY STAR Qualified Appliances, Exhaust Fan, Freezer, Humidifier, Microwave, Refrigerator, Tankless Water Heater, Washer, Geothermal Water Heater, Solar Hot Water, Water Purifier Owned, Water Softener Owned, Wine Refrigerator
Flooring
Hardwood, Other
Fireplaces
2

Exterior features

Architectural style
Modern
Construction materials
Cedar
Exterior
Balcony, Basketball Hoop, Fire Pit, Gas Grill, Lighting, Other, Playground, Speakers, Tennis Court(s)
Private pool
Yes

Schools (MLS)

Elementary school
Amagansett School
Elementary school district
Amagansett
Middle school
East Hampton Middle School
Middle school district
East Hampton
High school
East Hampton High School
High school district
East Hampton

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

Recent activity

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

Location

East Hampton · Suffolk County, NY 11930Show interactive map
9 MITCHELL DUNES Lane

East Hampton · Suffolk County, NY 11930

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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.