230 Keller Point Road, Islesboro, ME, 04848
About This Home
Located on 22.21± secluded acres up-island on Islesboro, Longmeadow Farm is an exceptional waterfront estate with southwesterly views across Seal Harbor and Penobscot Bay towards the Camden Hills. Custom-designed by the current owners in collaboration with top professionals, the main residence blends the understated elegance of Shingle-style architecture with meticulous, modern craftsmanship. Showcasing refined coastal living, the home features impeccable attention to detail, from luxurious natural materials to seamless indoor-outdoor transitions—all intended to blend with the surrounding landscape. An open main floor plan combines comfort and elegance, with rooms appropriate for larger gatherings while others are designated for intimate family settings. Six well-appointed bedrooms, including a main-floor primary bedroom suite, provide comfortable and private accommodations. There is also a three-car garage with a two-bedroom caretaker's apartment above it. The property's landscape features manicured lawns, mature gardens, gently rolling fields, wooded areas, and a historic pastoral lane that winds through the land. 2,695± feet of shorefront varies from sheltered coves, pebble beaches, granite outcroppings, and there is a deep-water dock with a ramp and float for direct access to the bay and the mainland. The property is subject to a Conservation Easement held by the Islesboro Islands Trust to protect the land's natural beauty.
Getting Around
Car-Dependent
Very Limited Transit
Somewhat BikeableSchools
Construction
Condition
- Year built: 2010
Materials
- Roof: Slate
- Construction materials: Wood Frame,Other,Shingle Siding
Type & Style
- Home type: SingleFamily
- Architectural style: Shingle
- Property subType: Single Family Residence
Interior
Basement
- Has basement: Yes
- Basement: Interior Entry,Full
Bedroom2
- Level: Second
Bedroom3
- Level: Second
Bedroom4
- Level: Second
Bedroom5
- Level: Second
Bedroom6
- Level: Second
Bedrooms & Bathrooms
- Bedrooms: 6
- Bathrooms: 8
- Full bathrooms: 6
- 1/2 bathrooms: 2
Dining Room
- Level: First
Family Room
- Level: First
Features
- Flooring: Carpet,Tile
- Number of fireplaces: 1
- Fireplace: Yes
- Finished area below ground: 0
- Finished area above ground: 10,000
Heating & Cooling
- Heating features: Hot Water,Zoned,Radiant
- Cooling features: None
Interior Area
- Total structure area: 10,000
- Total interior livable area: 10,000 sqft
Kitchen
- Level: First
Laundry
- Level: First
Living Room
- Level: First
Mud Room
- Level: First
Other
- Level: First
Other
- Level: First
Other
- Level: Second
Other
- Level: Second
Primary Bedroom
- Level: First
Property
Details
- Zoning: Shoreland
Features
- Has view: Yes
- View description: Fields,Scenic
- On waterfront: Yes
- Waterbody name: Penobscot Bay; Seal Harbor
- Frontage length: Waterfrontage: 2695,Waterfrontage Owned: 2695
Lot
- Lot size: 22.21 Acres
- Features: Rural,Level,Open Lot,Pasture,Landscaped,Wooded
Parking
- Total spaces: 3
- Parking features: Other,5 - 10 Spaces
- Has garage: Yes
- Attached garage spaces: 3
- Covered spaces: 3
Climate Risk is Financial Risk
Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.
Biggest Threats for This Home
- Ice Storm
- Winter Weather
- Coastal Flooding
- Lightning
- Cold Wave
- Hurricane
- Tsunami
How This Home’s Risks Compare
FEMA Declared Disasters Across Maine Counties
Understanding the Costs
Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.
Estimated Costs Today
| Monthly | Annual | |
|---|---|---|
| Mortgage | $45,256 | $543,072 |
| Home Insurance | $9,531 | $114,372 |
| Property Taxes | $7,458 | $89,496 |
| Electricity | $1,453 | $17,443 |
| Total | $63,698 | $764,376 |
Income You'd Need if You Spent...
How Costs Could Change Over Time
Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.
Comparing Against the Market
Price Per Sq Ft
vs Other Active Listings
Avg $/sqft
vs Homes Sold Last Month
Median $/sqft
Current Market Trends
Median Price Per Square Foot
The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.
Historicals for This Listing
Zestimate History ($/sqft)
No zestimate history available
Price History
| Date | Event | Price |
|---|---|---|
| 2026-06-01 | Price change | $8,950,000 |
| 2026-02-11 | Listed for sale | $9,975,000 |
| 2025-12-02 | Listing removed | $9,975,000 |
| 2025-10-03 | Listed for sale | $9,975,000 |
| 2010-06-18 | Sold | $2,250,000 |
| 2009-06-11 | Listing removed | $2,750,000 |
| 2009-05-22 | Listed for sale | $2,750,000 |
For Sale by Agent
View on Zillow