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4 Beds
5 Baths
5,475 sqft

$7,500,000

620 Colonial Road, Guilford CT, 06437

Price per sqft$1,369.86
Built in2003
Property size5,475 sqft
Property typeResidential

Overview

Active

Listed Jun 11, 2026

Updated 3 weeks ago

This is not simply waterfront living. This is a waterfront lifestyle unlike any other. Tucked within the coveted enclave of Sachem's Head, this extraordinary estate commands direct Long Island Sound frontage with unobstructed harbor views and breathtaking sunsets. Masterfully crafted in 2003 and transformed by the current owners with uncompromising quality, the 6,000 SF+ residence is defined by Dramatic walls of glass framing endless water views from virtually every room offering seamless indoor-outdoor living. You will be immediately wowed by the jaw dropping great room with an incredible fireplace & soaring ceiling. At the heart of the home lies a stunning Poliform kitchen, the pinnacle of modern luxury, thoughtfully appointed with premium appliances and designed to delight the most discerning chef. Oversized dining area that effortlessly steps right onto the expansive Ipe deck for additional outdoor waterfront entertaining. The all glass-enclosed family room overlooks the sound as well as the heated saltwater pool. Upstairs, a dramatic suspended gallery leads to an octagonal office and private outdoor captain's walk with endless vistas. The primary suite is a sanctuary with panoramic water views, balcony, fireplace, custom closets, and a spa-inspired bath with oversized shower and infrared sauna. A separate wing offers three en-suite bedrooms with stunning new baths and custom bunks for additional guests. Exceptional boating amenities include a permanent pier of concrete

$49,898/mo

Est. mortgage payment based on a $7,500,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
24165467

Interior Features

Bedrooms
4
Bathrooms
5
Fireplace
Yes
Cooling
Yes
Heating
Yes
Basement
Yes

Exterior Features

Lot Size
0.79 Acres

Other Property Details

Taxes
$67,568
Tax Frequency
Annually
Association Fee Frequency
Yearly
Garage
Yes
Pool
Yes
Waterfront
Yes
MLS provider logo

Listed by Susan Santoro with William Pitt Sotheby's Int'l (203) 605-5297

The IDX display contains information sourced from SmartMLS, Inc. as of 8/25/2026. This information is for personal, non-commercial use only and may not be used for any purpose other than identifying properties the viewer may be interested in purchasing. MLS data is generally considered reliable but is not guaranteed accurate by the MLS. Buyers are responsible for verifying all information and should conduct their own investigation or consult a professional. Some MLS data may have been provided by sources other than the listing agent. Unless stated in writing, the Broker/Agent has not verified information obtained from outside sources. The Broker/Agent may or may not have been the listing and/or selling agent, and cannot guarantee the accuracy of any property location shown on a map. Any offer of compensation is made only to participants of the MLS where the listing is filed.

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Data last updated on 8/25/2026 at 3:41 AM UTC.

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