218 West Shore Drive, Portland, ME 04109

$2,100,000
Property Type: Residential Bedrooms: 2 Baths: 1 Square Footage: 1,039 Lot Size (sq. ft.): 127,631 Status: Active
Current Price: $2,100,000 List Date: 7/23/2026 Last Modified: 8/26/2026

Overview

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 ...

Listing Details MLS# 1673223

Property Sub-Type

Property Sub-Type
Single Family Residence

Location Information

Street #
218
Street Name
West Shore
Street Type
Drive
County
Cumberland
Town
Portland
State/Province
ME
Zip Code
04109
Leased Land
No
Book
14189
Page
340
Map
83E
Block
A
Lot
18
Zoning
residential
Zoning Overlay
Unknown
Neighborhood Association
Diamond Cove Homeowners Association
Association
Yes
Association Fee
725
Fee Frequency Paid
Monthly
Full Tax Amount $
16146
Tax Year
2025
Tree Growth Y/N
No

Contract Information

Original List Price
2100000

Property Information

Surveyed
Yes
Seasonal
No
Deed/Conveyance Type Offered
Warranty
# Rooms
7
# Bedrooms
2
# Fireplaces
Yes
Total Full Baths
Yes
Total Baths
Yes
Year Built
1997
SqFt Finished Above Grade
1039
SqFt Finished Total
1039
SqFt Source
Public Records
Garage
No
Lot Size Acres +/-
2.93
Source of Acreage
Public Records
Road Frontage
No

Water Info

Waterfront
Yes
Waterfront Amount
266
Water Frontage Owned
266
Water View
Yes
Water Body Name
Casco Bay
Island
Yes

Appliances Included

Other Appliances
slate countertops

More Information

Utilities

Utilities On
No

Bedroom 1

Bedroom 1
Yes
Bedroom 1 Level
First

Bedroom 2

Bedroom 2
Yes
Bedroom 2 Level
First

Dining Room

Dining Room
Yes
Dining Room Level
First

Kitchen

Kitchen
Yes
Kitchen Level
First

Living Room

Living Room
Yes
Living Room Level
First

Office

Office
Yes
Office Level
First

Property Features

Site: Rolling/Sloping; Wooded Location: Abuts Conservation; Historic District; Rural Roads: Association; Dirt; Gravel; Private Road Transportation: Deep Water Access Source of Water Frontage: Deed; Seller Water Body Type: Bay; Ocean Recreational Water: Beach Rights; Common; Oceanfront; Waterfront Tidal View: Scenic; Trees/Woods Appliances Included: Dryer; Gas Range; Microwave; Refrigerator; Washer Kitchen Countertop: Other; Solid Surface Style: Other; Shingle Construction: Masonry; Wood Frame Basement: None Basement Entry: Not Applicable Roof: Metal Exterior: Shingle Siding Heat System: Direct Vent Heater; Heat Pump; Wood Stove Heat Fuel: Propane Water Heater: Off Heating System Cooling: Heat Pump Floors: Concrete; Wood Amenities: 1st Floor Bedroom; Laundry - 1st Floor; Other; Primary Bedroom w/Bath; Shower; Storage Patio and Porch Features: Deck Equipment: Internet Access Available Driveway: Gravel Parking: No Parking Vehicle Storage: Other Vehicle Storage Other Structures: Outbuilding Restrictions: Other Restrictions Electric: Circuit Breakers Gas: Underground Sewer: Private Sewer Water: Public

Room Information

Room Name Level
Bedroom 1 First
Bedroom 2 First
Kitchen First
Dining Room First
Kitchen First
Office First
Living Room First
IDX
Listing Office: Town & Shore Real Estate
Last Updated: August - 26 - 2026
Broker Attribution: 207-773-0262

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