Date
Details
Price
Change
Source
7/23/2026
Listed
$2,100,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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1/53
$2,100,000
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Property Description
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, and including an approved buildable house lot, 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.
Full Property Details
Full Property Details for 218 W Shore Dr
General
- Price: $2,100,000
- HOA FEE: $725/month
- Taxes: $16,146 (2025)
- Status: Active
- Type: Single Family
- Source: MREIS
- MLS ID: 1673223
- Updated: 8/13/2026
- Added to Site: 66 day(s) ago
Interior
- Number of Rooms: 7
- Interior Features: 1st Floor Bedroom, Other, Shower, Storage, Primary Bedroom w/Bath
- Fireplace: Yes
- Number of Fireplaces: 1
- Appliances: Dryer, Microwave, Gas Range, Refrigerator, Washer
- Flooring: Concrete, Wood
Rooms
Bathrooms
- Total Bathrooms: 1
- Full Bathrooms: 1
Bedrooms
- Total Bedrooms: 2
Other Rooms
- Laundry: Main Level
Additional Information
- Equipment: Internet Access Available
Exterior
- Porch/Patio/Deck: Deck
Parking
- Parking Features: Gravel, None
Location
- County: Cumberland
- Subdivision: Diamond Cove Homeowners Association
Community
- Association: Yes
- Pets Allowed: Yes
Heating & Cooling
- Air Conditioning: Yes
- Cooling Type: Heat Pump
- Heating Type: Electric, Propane, Direct Vent Heater, Heat Pump, Wood Stove
Utilities
- Sewer: Private Sewer
- Water: Public
Structural Information
- Architectural Style: Other, Shingle
- Construction: Masonry, Wood Frame, Shingle Siding
- Basement: Yes
- Basement Desc.: Not Applicable, None
- Roof: Metal
- Square Feet: 1,039
- Sq. Ft. Source: Public Records
- Finished Total: 1,039 Sq. Ft.
- Finished Above Grnd: 1,039 Sq. Ft.
- Year Built: 1997
Additional Structures
- Other Structures: Outbuilding
Lot Features
- Property View: Scenic, Trees/Woods
- Lot Size (Acres): 2.93
- Lot Size (Sq. Ft.): 127,630.8
- Street/Road Desc.: Private Road, Gravel, Dirt
- Zoning: residential
- Lot Description: Abuts Conservation, Historic District, Rural, Rolling Slope, Wooded
Water Features
- Water Front: Yes
- Water Front Name: Casco Bay
Financial Considerations
- Association Fee: $725
- Assoc Fee Freq.: Monthly
- Tax Amount: $16,146
- Tax Year: 2025
Disclosures and Reports
- Block: A
- Lot Number: 18
Listed by Town & Shore Real Estate (207) 773-0262
We Value Your Privacy
We Value Your Privacy
We Value Your Privacy
Listing agents
— 218 W Shore Dr —
Town & Shore Real Estate
207-773-0262
Town & Shore Real Estate
207-773-0262
207-773-0262
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 218 W Shore Dr
School District:Portland
| Name | Grades | Distance |
|---|---|---|
Howard C Reiche Community School 166 Brackett Street, Portland, ME 04102 | K-5 | 4.4 mi |
Casco Bay High School 196 Allen Avenue, Portland, ME 04103 | 9-12 | 4.9 mi |
Deering High School 370 Stevens Avenue, Portland, ME 04103 | 9-12 | 5.1 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 218 W Shore Dr
Tax History
Tax History for 218 W Shore Dr
Year
Property Taxes
Change
Tax Assessment
Change
2025
$12,887
15%
$1,075,700
44%
2024
$11,185
4%
$745,200
—
2023
$10,738
6%
$745,200
—
2022
$10,142
6%
$745,200
1%
2021
$9,561
-24%
$736,000
37%
2020
$12,536
—
$537,800
—
2019
$12,536
4%
$537,800
—
2018
$12,090
4%
$537,800
—
2017
$11,643
3%
$537,800
—
2016
$11,353
2%
$537,800
—
2015
$11,095
3%
$537,800
—
2014
$10,756
3%
$537,800
—
2013
$10,439
—
$537,800
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 218 W Shore Dr
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218 West Shore Drive, Portland, ME 04109 (MLS# 1673223) is a Single Family property with 2 bedrooms and 1 full bathroom. 218 West Shore Drive is currently listed for $2,100,000 and was received on July 23, 2026. Want to learn more about 218 West Shore Drive? Do you have questions about finding other Single Family real estate for sale in Portland? You can browse all Portland real estate or contact a Coldwell Banker agent to request more information.