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4390 Main Street
Cummaquid MA 02637 US

$3,998,000

Active Listing ID 22504273
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6 bed
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5,442 square feet
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4.00 Bath (3 Full , 2 Half)
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Lot: 3.81 Acres
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Single Family Residence

$3,998,000

Active Listing ID 22504273
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4390 Main Street CAPE COD WATERFRONT ESTATE that blends classic coastal architecture with modern refinement, refreshed with brand-new siding and a Red Cedar roof (August 2025). Step into Cape Cod luxury with 6 bedrooms and 5 baths, a chef's kitchen, outfitted with a Viking professional gas range, Sub-Zero refrigerator, center island with prep sink, that flows seamlessly into the expansive sun-drenched living room, dining area, and waterfront sun room. 2-car garage and full basement in the main residence for convenience and storage, plus a versatile guest house features its own 2-car garage and a captivating field-stone fireplace. This space offers endless possibilities for multi-generational families to create a two-bedroom retreat, an artist's studio, game room, or workshop. This private estate with over 3.81 acres includes a private in-ground pool, lush landscaping, and direct access to the tidal water. This rare offering presents the chance to own not just a home, but a true Cape Cod sanctuary. A private waterfront estate designed for those who seek beauty, privacy, and an unparalleled coastal lifestyle. 2-Year Choice ULTIMATE Home Warranty included! Some photos virtually staged

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Property Features

  • Facts
  • Lot Size: 3.81 Acres
  • Property Type: Residential
  • Property Sub-type: Single Family Residence
  • Features
  • Full Bathrooms: 3
  • 1/2 Bathrooms: 2
  • Cooling System: Central Air
  • Exterior Finish: Underground Sprinkler System, Private Yard
  • Floor Covering: Hardwood, Wood, Tile, Carpet
  • Roof Type: Wood
  • Heating Fuels: Forced Air, Natural Gas
  • Additional Features
  • Fireplace
  • Patio
  • Pool
  • Waterfront

Property

  • propertytype: Residential
  • propertysubtype: Single Family Residence
  • listprice: 3998000
  • unparsedaddress: 4390 Main Street
  • postalcity: Cummaquid
  • stateorprovince: MA
  • country: US
  • postalcode: 02637
  • bathroomsfull: 3
  • bathroomshalf: 2
  • bathroomsonequarter: 0
  • bathroomsthreequarter: 0
  • lotsizeacres: 3.81
  • lotsizeunits: Acres
  • lotsizearea: 3.81
  • livingarea: 5442
  • livingareaunits: Square Feet
  • latitude: 41.704234
  • longitude: -70.262115
  • listagentfullname: Robert MacKinnon
  • listagentemail: Bob@BobMac.com
  • listagentkey: 3yd-CCIAORMA-u26516
  • listagentmlsid: u26516
  • listagentpreferredphone: 6173547000
  • listagentofficephone: 6173547000
  • listofficekey: 3yd-CCIAORMA-EXPR
  • listofficemlsid: EXPR
  • disclaimer: Copyright © 2026 Cape Cod & Islands Association of REALTORS®, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
  • sourcesystemid: CCIAORMA
  • yearbuilt: 1994
  • listingcontractdate: 2025-08-31
  • countyorparish: Barnstable
  • parcelnumber: 351-065
  • elementaryschooldistrict: Barnstable
  • middleorjuniorschooldistrict: Barnstable
  • highschooldistrict: Barnstable
  • appliances: Water Heater, Range Hood, Gas Range, Dishwasher, Disposal, Refrigerator, Washer
  • cooling: Central Air
  • constructionmaterials: Wood Siding
  • flooring: Hardwood, Wood, Tile, Carpet
  • heating: Forced Air, Natural Gas
  • fireplaceyn: True
  • transactiontype: ForSale
  • storiestotal: 2
  • parkingtotal: 12
  • parkingfeatures: Driveway, Open
  • roof: Wood
  • view: Lake
  • waterfrontyn: True
  • franchiseaffiliation: None
  • interiorfeatures: Eat-in Kitchen, Central Vacuum, Attic Storage, Linen Closet, Pantry, Recessed Lighting, Kitchen Island, Breakfast Bar
  • exteriorfeatures: Underground Sprinkler System, Private Yard
  • rooms: Bedroom 6, Bathroom 3, Bathroom 1, Bedroom 5, Bathroom 2, Bathroom 5, Basement, Bathroom 4, Bedroom 3, Bedroom 4, Bedroom 1, Bedroom 2
  • otherstructures: Storage, Outbuilding
  • patioandporchfeatures: Patio
  • accessibilityfeatures: Accessible Approach with Ramp
  • dock: False
  • poolprivateyn: True
  • spayn: False
  • internetaddressdisplayyn: True
  • internetautomatedvaluationdisplayyn: True
  • internetconsumercommentyn: True
  • location: -70.262115, 41.704235
  • openhouse: { "AppointmentRequiredYN": false, "ListingKey": "3yd-CCIAORMA-22504273", "OpenHouseEndTime": "2026-08-15 17:00:00", "OpenHouseId": "7753673", "OpenHouseRemarks": "WATERFRONT Cape Cod PRIVATE Estate with Guest house and Pool. Newly refreshed with brand-new siding and a Red Cedar roof installed August 2025. Tour this 6 bedrooms and 5 baths, a chef's kitchen, outfitted with a Viking professional gas range, Sub-Zero refrigerator, center island with prep sink, that flows seamlessly into the expansive sun-drenched living room, dining area, and waterfront sun room. Guest house, private pool garages for 4 vehicles on a very PRIVATE 3.8 Acres exclusive lot.", "OpenHouseStartTime": "2026-08-15 11:30:00", "OpenHouseType": null, "VirtualOpenHouseURL": null }, { "AppointmentRequiredYN": false, "ListingKey": "3yd-CCIAORMA-22504273", "OpenHouseEndTime": "2026-08-16 17:30:00", "OpenHouseId": "7753674", "OpenHouseRemarks": "WATERFRONT Cape Cod PRIVATE Estate with Guest house and Pool. Newly refreshed with brand-new siding and a Red Cedar roof installed August 2025. Tour this 6 bedrooms and 5 baths, a chef's kitchen, outfitted with a Viking professional gas range, Sub-Zero refrigerator, center island with prep sink, that flows seamlessly into the expansive sun-drenched living room, dining area, and waterfront sun room. Guest house, private pool garages for 4 vehicles on a very PRIVATE 3.8 Acres exclusive lot.", "OpenHouseStartTime": "2026-08-16 12:00:00", "OpenHouseType": null, "VirtualOpenHouseURL": null }
  • customfields: {"AdditionalInformation":{}, "AlternatePrices":[], "BrokerName":"exp Realty, LLC", "BuilderEmail":null, "BuilderFax":null, "BuilderPhone":null, "City":null, "Country":null, "CustomSourceId":null, "Expenses":[], "GeocodeOptions":null, "LeadRoutingEmail":"Bob@BobMac.com", "ListBrokerageCity":"South Yarmouth", "ListBrokerageCountry":"US", "ListBrokerageEmail":"Jason.Gesing@exprealty.com", "ListBrokerageLogoUrl":null, "ListBrokerageName":"exp Realty, LLC", "ListBrokeragePhone":"7812610003", "ListBrokeragePostalCode":"02664", "ListBrokerageStateOrProvince":"ME", "ListBrokerageUnitNumber":null, "ListBrokerageUnparsedAddress":"15 Winsome Road", "ListBrokerageWebsiteUrl":null, "ListOfficeAddress1":"60 Munson Meeting Way, Unit J ", "ListOfficeAddress2":null, "ListOfficeBrokerMlsId":"EXPR", "ListOfficeCity":"Chatham", "ListOfficeCountry":"US", "ListOfficeEmail":"Jason.Gesing@exprealty.com", "ListOfficePostalCode":"02633", "ListOfficeStateOrProvince":"MA", "ListPriceCurrencyType":"USD", "ListingTitle":"SINGLE_FAMILY - Cummaquid, MA", "ListingURL":"https://www.realtor.com/realestateandhomes-detail/4390-Main-St_Cummaquid_MA_02637_M93968-12046?f=listhub&s=CCIAORMA&m=22504273&c=rexren", "MLSModificationTimestamp":"2026-08-11 22:00:22", "Neighborhoods":[{"Description":null, "Name":"Barnstable"}], "PostalCode":null, "RoomCount":10, "StateOrProvince":null, "Taxes":[{"TaxAnnualAmount":27742, "TaxDescription":null, "TaxYear":"2025"}], "UnitNumber":null, "UnparsedAddress":null}
Listing Changed: 8/15/2026 5:33:38 PM GMT
Source Updated Date: 8/16/2026 12:55:56 AM GMT

Courtesy of: Robert MacKinnon, eXp Realty, LLC, Bob@BobMac.com

Copyright © 2026 Cape Cod & Islands Association of REALTORS®, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.