# 620 Colonial Road, Guilford, CT 06437 > **TL;DR:** 4bd/5ba single family, $7,500,000 ($1370/sqft), built 2003, 5,475 sqft. > Fireplace, Waterfront, A/C, 2-car garage. Est. $45,112/mo. Listed 109 days. ## Property at a Glance | Attribute | Value | |-----------|-------| | Price | $7,500,000 | | Price/sqft | $1370 | | Bedrooms | 4 | | Bathrooms | 4 full, 1 half | | Square Feet | 5,475 | | Year Built | 2003 | | Lot Size | 34,412 sqft (0.79 acres) | | Garage | 2-car | | Property Type | Single Family (Other) | | Status | Active | | Days on Market | 109 | ## Why This Home Stands Out - **Waterfront** - Waterfront location listed ## Estimated Monthly Costs | Category | Amount | |----------|--------| | Principal & Interest (20% down, 30-year at 6.5%) | $37,924 | | Estimated Insurance | $2,188 | | HOA | $5,000 | | **Total** | **$45,112** | ## Nearby Schools - **Elementary:** Per Board of Ed - **High:** Guilford ## Key Amenities - Fireplace - Waterfront - A/C - 2-car garage ## Property Highlights - Built in 2003 - 0.79 acre lot - Fireplace - Waterfront ## Description ### Agent Description 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 & granite. A private dock, two unique heavy duty mooring systems, and a rare boat railway leading directly from the water into the boat garage beneath the home. Lush grounds, a sunken spa, fitness room, whole-house generator, and premium mechanical systems complete this remarkable offering. A foot bridge leading to the Yacht Club and historic Guilford just moments away. 90 minutes from Manhattan and approximately 32 nautical miles to Montauk. This is a rare opportunity to experience one of Connecticut's most extraordinary waterfront settings ## Location - **Address:** 620 Colonial Road, Guilford, CT 06437 - **County:** New Haven - **Coordinates:** 41.246697, -72.706609 - **Google Maps:** https://www.google.com/maps?q=41.246697,-72.706609 ## Listing Agent - **Name:** Susan Santoro - **Brokerage:** William Pitt Sotheby's International Realty - **Phone:** 2036055297 - **Broker Phone:** 2034532533 - **Listing URL:** [View original listing](https://www.realtor.com/realestateandhomes-detail/620-Colonial-Rd_Guilford_CT_06437_M42635-41773?f=listhub&s=CTMLS&m=24165467&c=propsimple) ## Photos ![620 Colonial Road - Photo 1](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3043628961r.jpg) ![620 Colonial Road - Photo 2](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3901937898r.jpg) ![620 Colonial Road - Photo 3](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f227176471r.jpg) ![620 Colonial Road - Photo 4](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f4204196324r.jpg) ![620 Colonial Road - Photo 5](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3049650423r.jpg) ![620 Colonial Road - Photo 6](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2982758501r.jpg) ![620 Colonial Road - Photo 7](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3811413906r.jpg) ![620 Colonial Road - Photo 8](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f335464221r.jpg) ![620 Colonial Road - Photo 9](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3504016276r.jpg) ![620 Colonial Road - Photo 10](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f1264415258r.jpg) ![620 Colonial Road - Photo 11](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f479133376r.jpg) ![620 Colonial Road - Photo 12](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2689032545r.jpg) ![620 Colonial Road - Photo 13](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3000799179r.jpg) ![620 Colonial Road - Photo 14](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f1701269144r.jpg) ![620 Colonial Road - Photo 15](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2944727600r.jpg) ![620 Colonial Road - Photo 16](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3739957954r.jpg) ![620 Colonial Road - Photo 17](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3624224759r.jpg) ![620 Colonial Road - Photo 18](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f1816658968r.jpg) ![620 Colonial Road - Photo 19](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3155407241r.jpg) ![620 Colonial Road - Photo 20](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2789731635r.jpg) ![620 Colonial Road - Photo 21](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2420049964r.jpg) ![620 Colonial Road - Photo 22](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2732027866r.jpg) ![620 Colonial Road - Photo 23](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f4032900948r.jpg) ![620 Colonial Road - Photo 24](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f899625909r.jpg) ![620 Colonial Road - Photo 25](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2586948991r.jpg) ![620 Colonial Road - Photo 26](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3966303r.jpg) ![620 Colonial Road - Photo 27](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3125726260r.jpg) ![620 Colonial Road - Photo 28](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3263203020r.jpg) ![620 Colonial Road - Photo 29](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f4184835269r.jpg) ![620 Colonial Road - Photo 30](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3436154653r.jpg) ![620 Colonial Road - Photo 31](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3012729696r.jpg) ![620 Colonial Road - Photo 32](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2523530699r.jpg) ![620 Colonial Road - Photo 33](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f653915278r.jpg) ![620 Colonial Road - Photo 34](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2187336260r.jpg) ![620 Colonial Road - Photo 35](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f2847125237r.jpg) ![620 Colonial Road - Photo 36](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f931653128r.jpg) ![620 Colonial Road - Photo 37](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3725514272r.jpg) ![620 Colonial Road - Photo 38](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3310336033r.jpg) ![620 Colonial Road - Photo 39](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f3721667389r.jpg) ![620 Colonial Road - Photo 40](http://lh.rdcpix.com/5cc5454ff7bff4afb5d6a76ae097a10fl-f4187452442r.jpg) --- **MLS#:** 24165467 | **Updated:** 2026-09-27 **Source:** listhub *Copyright © 2026 SmartMLS, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.* [View on PropertySimple](https://www.propertysimple.ai/listing/620-colonial-road-guilford-ct-06437-24165467) --- ## Structured Data ```json { "@context": "https://schema.org", "@type": "RealEstateListing", "@id": "https://www.propertysimple.ai/listing/620-colonial-road-guilford-ct-06437-24165467#listing", "url": "https://www.propertysimple.ai/listing/620-colonial-road-guilford-ct-06437-24165467", "name": "620 Colonial Road, Guilford, CT 06437", "description": "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. 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