218 West Shore Drive, Portland, ME 04109 (MLS # 1673223)

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PRICE $2,100,000 dsIDX morgage calculator
BEDS 2
BATHS 1
HOME SIZE 1,039 sqft
LOT SIZE 2.93 ac

A truly rare offering on Great Diamond Island, 218 West Shore Drive is a year-round waterfront property where Maine island living, extraordinary history, and unforgettable sunset views converge. Part of historic Fort McKinley, a coastal defense installation constructed between 1890 and 1910 to protect Portland Harbor, the property occupies a commanding waterfront position with sweeping views toward the Portland skyline. Set on almost 3 acres with 266 feet of water frontage, it offers a meaningful connection to both the island's storied past and the surrounding seascape. The charming cottage is attached to an original mining casemate and features an inviting living area opening to a waterside patio, two bedrooms, and one bath, with the primary bedroom located within the original casemate. Additional historic structures include a renovated second bunker, currently used as a den/office and a workshop with potential for a third bedroom, as well as a rangefinder station and gun battery. Tucked along a private cove with beautiful westerly sunset views, this one-of-a-kind property offers privacy, character, and a remarkable connection to the sea. As part of the Diamond Cove Association, residents enjoy amenities including a pool, tennis and pickleball courts, a bowling alley, and a basketball court. Accessible by ferry or private boat, Great Diamond Island also offers a marina, an inn, and restaurants, creating an exceptional opportunity for year-round island living just minutes from Portland.

LAST UPDATED 7/23/2026 TRACT Diamond Cove Homeowners Association
YEAR BUILT 1997 COMMUNITY Diamond Cove Homeowners Association
COUNTY Cumberland STATUS Active
PROPERTY TYPE(S) Single Family


ADDITIONAL DETAILS
AIR Heat Pump
AIR CONDITIONING Yes
APPLIANCES Dryer, Gas Range, Microwave, Refrigerator, Washer
BASEMENT None
CONSTRUCTION Frame, Shingle Siding
FIREPLACE Yes
HEAT Electric, Heat Pump, Propane, Wood Stove
HOA DUES 725
INTERIOR Other, Storage
LOT 2.93 acre(s)
LOT DESCRIPTION Rolling Slope, Wooded
LOT DIMENSIONS 2.93
MLS STATUS Active
PARKING Gravel, None
SEWER Private Sewer
STYLE Other, Shingle
SUBDIVISION Diamond Cove Homeowners Association
TAXES 16146
VIEW Yes
VIEW DESCRIPTION Scenic, Trees/Woods, Water
WATER Public
WATER ACCESS Casco Bay
WATERFRONT Yes
WATERFRONT DESCRIPTION Ocean Front
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Listing provided by Town & Shore Real Estate, 207-773-0262

Listing data is derived in whole or in part from the Maine IDX & is for consumers'' personal, non-commercial use only. Dimensions are approximate and not guaranteed. All data should be independently verified.© 2026 Maine Real Estate Information System, Inc. All Rights Reserved.

Additional school data provided by Onboard Informatics © 2026 Onboard Informatics. Information deemed reliable but not guaranteed.

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IDX data provided by Market Leader, courtesy of Maine Listings.

This IDX solution is (c) Diverse Solutions 2026.


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