Privately sited on desirable Dingley Island, this extraordinary

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Home For Sale

15 Lupine Ln

Harpswell, Maine 04079

Cumberland County

Waterfront: Yes

Community: 

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$2,199,000 4 br, 4.0 bath 2584 sq. ft. 1.670 acres

Privately sited on desirable Dingley Island, this extraordinary to-be-built waterfront home offers a rare opportunity to own over 400 feet of waterfront with a picturesque private dock and long serene views. Thoughtfully envisioned to blend coastal elegance with modern luxury, the residence will feature classic architectural details, refined craftsmanship, and high-end materials throughout, Built by John Libby Construction, A trusted local company. Designed for both entertaining and effortless year-round living, the thoughtful four-bedroom floor plan features 10 ft ceilings, light-filled spaces, and water views from nearly every room. Two luxurious primary suites provide exceptional comfort and privacy for owners and guests alike. From boating and paddleboarding to swimming and fishing from your own tidal dock, this remarkable property offers a waterfront lifestyle in one of Maine's most exclusive island settings. A rare blend of privacy, serenity, and coastal luxury.

Interior:
  • Bedrooms: 4
  • Baths: 4.0
  • Sq Ft: 2584
  • Year Built: 2026
  • Utilities: 
  • Fireplaces: Has Fireplace
  • Stories: 
  • Heat/AC: Propane (Heating), Zoned, Natural Gas, Electric (Heating), Heat Pump (Heating)
  • Garage: Open
Exterior:
  • Lot Size: 1.670 acre
  • Lot Dimensions: 
  • Waterfront: Yes
  • View Types: 
  • Yard: 
  • Siding: Wood Frame, Clapboard, Shingle Siding, Vinyl Siding
  • Roof: Composition, Shingle
  • MLS #: 1663454
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Contact Information:
Beach Home For Sale in Harpswell, Maine
Listing Agent: Laurie Haggerty, Roxanne York Real Estate, 207-751-9094, 207-833-6363 Listing Site, Listing Status: Active
Copyright © 2026 Maine Listings. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Ad Number: 7764706
Viewed 28 times.
Updated: May 26, 2026

This property is a Home located at 15 Lupine Ln, Harpswell, Maine 04079, and is currently For Sale at $2,199,000. This Home has 4 bedrooms, 4.0 baths, 2584 sq ft.