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Ad #7909541

MLS #11681141

Now delivering in as little as 9 months, ARCH&Co is redefining

1215 MIDDLE LINE HWY, Sag Harbor, NY 11963

$3,899,999

5Beds

5Baths

5,000Sqft

0.43Acres

About this property

Now delivering in as little as 9 months, ARCH&Co is redefining the Hamptons' building experience. We believe your home should reflect your unique vision. Only this extraordinary pre-completion opportunity allows you to collaborate on a residence that is customized to your exact specifications. This 5,000 sq ft estate on just shy of a half-acre lot is priced at $3.9M, including the finished residence - not just the land. The home features 5 bedrooms, 4.5 bathrooms (option to expand), and a heated gunite 16 x 36 pool, all standard. ARCH&Co provides an exclusive array of over 50 options, to personalize the build with options such as additional bedrooms, bathrooms, gym, home theater, sauna, steam room, outdoor kitchens, fireplaces, and more. Inside, you are invited to work alongside the renowned Fiorello Design to select premium tiles, flooring, cabinetry, countertops, and paint colors, - all included within the standard pricing. This is a rare opportunity to create a fully customized home, without the complexity of a traditional custom build, that only ARCH&Co can offer.

Property Features

5 Beds

5 Baths

5,000 Sqft

Built in 2026

0.43 Acres

Suffolk County

Additional Photos

Contact Information

Josh Seidner

Compass

212-913-9058

Location

Listing Agent: Josh Seidner 212-913-9058
Broker: Compass 212-913-9058 Listing Site
Copyright © 2026 My State MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

BeachHouse.com

Printed Aug 12, 2026

Photo Gallery

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 1

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 2

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 3

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 4

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 5

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 6

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 7

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 8

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 9

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 10

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 11

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 12

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 13

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 14

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 15

Now delivering in as little as 9 months, ARCH&Co is redefining - photo 16

$3,899,999

Beds

Baths

5,000

Sqft

1215 MIDDLE LINE HWY, Sag Harbor, NY 11963

By contacting this agent you agree to these Terms and Conditions.

Home New York Sag Harbor

MLS# 11681141

Home Active Under Contract

Now delivering in as little as 9 months, ARCH&Co is redefining

$3,899,999

1215 MIDDLE LINE HWY, Sag Harbor, NY 11963

Beds

Baths

5,000

Sqft

0.43

Acres

$3,899,999

1215 MIDDLE LINE HWY, Sag Harbor, NY 11963

5 Beds

5 Baths

5,000 Sqft

0.43 Acres

40 days

on BeachHouse.com

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saves

Property Details

HOME DETAILS

5 Beds

5 Baths

5,000 Sqft

Built in 2026

0.43 Acres

FINANCIAL & COMMUNITY

Suffolk County

Location

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Ad Statistics

Ad Number

7909541

Viewed

32 times

Listing Status

Active Under Contract

Added

Jul 02, 2026

Last Refreshed

Jul 03, 2026 06:17:28 PM

Listing Information

Data Source

My State MLS

Source Property ID

11681141

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About this property

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Location

Now delivering in as little as 9 months, ARCH&Co is redefining

Property Details

HOME DETAILS

FINANCIAL & COMMUNITY

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