391 Sea View Avenue Osterville
Barnstable, MA, 02655
$15,000,000
6 Beds
5.5 Baths
6,830 SqFt
1.23 Acres
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Overlooking the shimmering waters of Nantucket Sound, this extraordinary Wianno estate offers an unparalleled blend of elegance, privacy, and coastal charm. With its own private sandy beach and panoramic ocean views, this is a rare opportunity to own a legacy property, along Sea View Avenue, in one of Cape Cod’s most coveted enclaves. Surrounded by lush, professionally landscaped gardens, the residence is a contemporary interpretation of classic shingle-style architecture, thoughtfully designed by the acclaimed firm PSD. The home’s open floor plan seamlessly integrates refined formal spaces with relaxed gathering areas–perfect for both sophisticated entertaining and fun family events. Inside, bespoke millwork, soaring ceilings, and dramatic architectural details define the living spaces, while expansive walls of glass frame breathtaking vistas of sky and sea. Each room is a celebration of light, luxury, and craftsmanship! A charming two bedroom two bathroom guest house, with its own deck and water views, provides the perfect retreat for visiting friends or family.This is a fabulous opportunity to own a gracious Osterville estate and turn dreams into reality!

Property Details

Price:
$15,000,000
MLS #:
22503232
Status:
Active
Beds:
6
Baths:
5.5
Type:
Single Family
Subtype:
Single Family Residence
Listed Date:
Jul 2, 2025
Finished Sq Ft:
6,830
Total Sq Ft:
6,830
Lot Size:
53,579 sqft / 1.23 acres (approx)
Year Built:
2020
WaterfrontBarnstableNantucket Sound

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Schools

School District:
Barnstable

Interior

Appliances
Dishwasher, Wine Cooler, Washer, Range Hood, Security System, Refrigerator, Gas Range, Freezer, Gas Dryer, Gas Water Heater
Bathrooms
4 Full Bathrooms, 3 Half Bathrooms
Cooling
Central Air
Fireplaces Total
3
Flooring
Hardwood, Tile
Heating
Other

Exterior

Architectural Style
Contemporary, Shingle
Construction Materials
Shingle Siding
Exterior Features
Garden
Parking Features
Guest
Parking Spots
6
Roof
Pitched, Shingle, Wood

Financial

Tax Year
2025
Taxes
$92,242

Map

Community

Market Summary

Current real estate data for Single Family in Barnstable as of Sep 05, 2025
198
Single Family Listed
101
Avg DOM
4,248
Avg $ / SqFt
$2,153,661
Avg List Price

Property Summary

    391 Sea View Avenue Osterville Barnstable MA is a Single Family for sale in Barnstable, MA, 02655. It is listed for $15,000,000 and features 6 beds, 6 baths, and has approximately 6,830 square feet of living space, and was originally constructed in 2020. The current price per square foot is $2,196. The average price per square foot for Single Family listings in Barnstable is $4,248. The average listing price for Single Family in Barnstable is $2,153,661. To schedule a showing of MLS#22503232 at 391 Sea View Avenue Osterville in Barnstable, MA, contact your Pleasant Bay Realty agent at (774) 209-1428.

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