King + Miller Real Estate logo
207-805-3716

117 Starboard LaneHarpswell, ME 04079Price: $8,500,000

  • Price: $8,500,000
  • Est. Mortgage of $/month
  • 2 Days on Market
$
$
%
$/month over payments
Federal 30-year interest rate: 6.76% last updated on Sep 10, 2026
* All Figures are estimates. Check with your bank or proposed mortgage company for actual interest rates.
This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.
  • $8,500,000List Price
  • 7Bedrooms
  • 7Bathrooms
  • 27.64Acreage
  • 1995Year Built
  • 6,753Square Feet
Listed by LandVest,Inc.

Listing Tools

Encompassed by more than one mile of shoreline along Casco Bay, Dingley Island is an extraordinary coastal estate with 27± acres, a shingle-style residence, deepwater dock, and exceptional privacy. With open lawns for gathering, mature woodlands to explore, and secluded stretches of rugged shoreline, the property's diverse landscape & immense privacy create a timeless setting & true sense of exclusivity along the coveted Maine coast. Set on the point of the peninsula, the main residence faces east, west, and south, beautifully capturing panoramic water views from sunrise to sunset. The shingle-style home is distinguished by its architecture, fine craftsmanship, and effortless connection between its living spaces & the surrounding landscape. The well-appointed home features 6 bedrooms, 5.5 baths, and 5,805± SF of living space with soaring ceilings, high-end finishes, and abundant natural light. An impressive double-sided Maine granite fireplace anchors the dining & living rooms, creating warm & inviting spaces suitable for quiet moments, intimate gatherings, and entertaining. A separate garage with a 948± SF, 1-bedroom, 1-bath apartment provides added space for guests. Throughout the grounds, exceptional stonework-including walls, grass-lined steps, and several patios-creates a natural progression of outdoor spaces, each thoughtfully designed for dining, enjoyment, and being immersed in the waterfront setting. A private tennis court invites recreation, while a custom-built treehouse adds whimsy & adventure. Down at the shore, the deepwater dock is safely tucked away on a protected cove, creating a serene vantage point to view local lobster boats working the bay. A true wildlife paradise, enjoy seal colonies sunbathing on nearby rock ledges, daily sightings of bald eagles & porpoises, and an array of migrating seabirds moving through the pristine landscape. More than a coastal residence, Dingley Island is a legacy estate designed to be enjoyed for generations.

Property Details of 117 Starboard Lane

Property Details

Interior Features

Exterior Features

Utilities and Appliances

Other Details

Map Location

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. ©2026 Maine Real Estate Information System, Inc. All Rights Reserved. equal opportunity housing logo   Privacy Policy

King + Miller Real Estate participates in ©2026 Maine Listings Internet Data Exchange program, allowing us to display other Maine IDX Participants' listings. This website does not display complete listings. Certain listings of other real estate brokerage firms have been excluded. Mortgage figures are estimates. Check with your bank or proposed mortgage company for actual interest rates. This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

If you would like to receive text message communication, text START, YES, to this phone number (207) 805-3716 from King and Miller Real Estate, LLC. You will be opted-in to text messages.

Message frequency varies and may include account notifications and customer care. Message and data rates may apply. Reply STOP or CANCEL at any time to end or unsubscribe. For assistance, reply HELP or contact support at: (207) 805-3716. See our Privacy Policy for details on how we handle your information.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

$

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.