391 Sea View Avenue, Osterville, MA 02655 (MLS# 22503232)

391 Sea View Avenue, Osterville, MA 02655

$10,500,000
Property Type: Residential Bedrooms: 6 Baths: 7 Square Footage: 6,830 Lot Size (sq. ft.): 53,579 Status: Closed
Current Price: $10,500,000 List Date: 10/23/2025 Last Modified: 12/16/2025

Overview

Description

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!

Listing Details MLS# 22503232

Contract Info

Original List Price
15000000
List Price/SqFt
1976.57

Legal and Taxes

Street #
391
Street Name
Sea View
Street Suffix
Avenue
County
Barnstable
Town
Barnstable
Village
Osterville
State
MA
Zip Code
02655
Tax ID
138-031
Estimated Annual Taxes
92242
Tax Year
2025
Building Assessments
3160800
Other Assessments
114400
Total Assessment
11115900
Title Reference - Book
C220322
Underground Fuel Tank
No
Lead Base Paint
No
Asbestos
Unknown
Flood Ins Required
Yes: verify w/insurance agent
Mass Use Code
109 - Residential, multiple houses
Nitrogen Sensitive Area
Yes
Title Reference - Page
No

General Property Info

Region
Mid-Cape
School District
Barnstable
Zoning
RF-1
Property Sub-Type
Single Family Residence
Year Built
2020
Renovated
No
Total Finished Space
6830
Field Card SqFt
5502
Additional Finished Space
1328
Additional SqFt Source
Public Records
Total Rooms
9
Stories
2
Private Pool
No
Private Dock
No
Leased Land
No
Lot Size SqFt
53579
Lot Size Source
Assessor
Acres
1.23
Irregular
Yes
Association
No
Membership Required
No
Garage
Yes
# of Cars
4
# of Parking Spaces
6
Year Round
Yes
Bedrooms - Total
6
Baths - Full
4
Baths - Half
3
Baths - Total
7
Separate Living Qtrs
Yes
Golf Course Front
No
Golf Course View
No
Waterfront
Yes
Water Body
Nantucket Sound
Waterfront Type
Oceanfront
Water Body Type
Salt
Water Access Type
Private
Waterview
Yes
Water Body View
Nantucket Sound
Waterview Type
Ocean
Miles to Beach
0 - .1
Mi. to Beach Comments
Private beach
Fireplace
Yes
# Fireplaces
3
Property Includes Recording Devices
Yes
Basement
Yes

Status Change Info

Concessions
No
Estimated Selling Date
2025-12-16
Under Contract Date
2025-11-13
Sold Date
2025-12-16
Sold Price/SqFt
1537.34
SP/AV
0.94

Baths Per Level

Baths - Level 1
2
Baths - Level 2
3

Sep Living Qtrs Info

Beds
2
Baths - Full
2
Baths - Total
2

More Information

Convenient To

Convenient to Water Body 1
Nantucket Sound
Convenient to Water Body 2
Dowses
Conservation Area
Yes
Golf Course
Yes
House of Worship
Yes
Major Highway
Yes
Marina
Yes
Medical Facility
Yes
School
Yes
Shopping
Yes

Primary Bedroom

Primary Bedroom Level
Second Floor
Primary Bedroom
Yes
Built-Ins
Yes
Cathedral Ceiling
Yes
Closet
Yes
Dressing Room
Yes
Flooring
Wood
Office/Sitting Area
Yes
Private Full Bath
Yes
View
Yes
Walk-in Closet
Yes

Living Room

Flooring
Wood
Special Door Access
French
Living Room
Yes
Built-Ins
Yes
Recessed Lighting
Yes
View
Yes
Wet Bar
Yes

Dining Room

Dining Room Level
First Floor
Flooring
Wood
Special Door Access
French
Dining Room
Yes
Built-Ins
Yes
View
Yes

Kitchen

Kitchen Level
First Floor
Countertops
Granite
Flooring
Wood
Special Door Access
French
Eat-in Kitchen
Yes
Kitchen
Yes
Bay/Bow Windows
Yes
Breakfast Nook
Yes
Cathedral Ceiling
Yes
Kitchen Island
Yes
Private Full Bath
Yes
View
Yes

Sewer

Septic Tank
Title V Grade Level

Remarks & Misc

Public Remarks
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!
Directions to Property
From Wianno Ave South continue to the end of Wianno Avenue and take a right on Sea View Avenue past the Wianno Club, 391 Sea View Avenue is on your left.

Street Description

Paved
Yes
Public
Yes

Special Listing Cond

None
Yes

Location Description

South of Route 28
Yes

Lot Features

Marsh
Yes
Views
Yes

Year Built Desc

Approximate
Yes

Basement Description

Partial
Yes

Parking Features

Driveway
Yes
Guest
Yes
Other
Yes

Waterview Direction

South
Yes
West
Yes

Architectural Style

Contemporary
Yes
Shingle
Yes

Garage Description

Attached
Yes
Direct Access
Yes
Storage
Yes
Under
Yes

Foundation Details

Crawl Space
Yes
Poured
Yes

Floors

Hardwood
Yes
Tile
Yes

Separate Living Qtrs

Basement
Yes
Detached
Yes
First Floor
Yes

Roof Description

Pitched
Yes
Shingle
Yes
Wood
Yes

Siding Description

Shingle
Yes

Heating

Other
Yes

Bedroom 2

Closet
Yes
Private Full Bath
Yes
Walk-in Closet
Yes

Cooling

Central Air
Yes

Fuel Type

Natural Gas
Yes

Water

Public
Yes

Hot Water

Water Heater
Yes

Hot Water Source

Natural Gas
Yes

Kitchen/Dining Combo

No
Yes

Exterior Features

Garden
Yes
Private Yard
Yes
Underground Sprinkler System
Yes

Appliances

Dishwasher
Yes
Freezer
Yes
Gas Dryer
Yes
Gas Range
Yes
Range Hood
Yes
Refrigerator
Yes
Security System
Yes
Washer
Yes
Wine Cooler
Yes

Interior Features

Elevator
Yes
Linen Closet
Yes
Pantry
Yes
Recessed Lighting
Yes
Sound System
Yes
Walk-In Closet(s)
Yes
Wet Bar
Yes

Patio And Porch Features

Patio
Yes
Screened Porch
Yes

Property Features

Street Description: Paved; Public Location Description: South of Route 28 Special Listing Cond: None Architectural Style: Contemporary; Shingle Year Built Desc: Approximate Basement Description: Partial Foundation Details: Crawl Space; Poured Lot Features: Marsh Garage Description: Attached; Direct Access; Storage; Under Parking Features: Driveway; Guest; Other Separate Living Qtrs: Basement; Detached; First Floor Convenient To: Conservation Area; Golf Course; House of Worship; Major Highway; Marina; Medical Facility; School; Shopping Waterview Direction: South; West Primary Bedroom: Primary Bedroom; Built-Ins; Cathedral Ceiling; Closet; Dressing Room; Office/Sitting Area; Private Full Bath; View; Walk-in Closet Bedroom 2: Closet; Private Full Bath; Walk-in Closet Living Room: Living Room; Built-Ins; Recessed Lighting; View; Wet Bar Dining Room: Dining Room; Built-Ins; View Kitchen: Kitchen; Bay/Bow Windows; Breakfast Nook; Cathedral Ceiling; Eat-in Kitchen; Kitchen Island; Private Full Bath; View Appliances: Dishwasher; Freezer; Gas Dryer; Gas Range; Range Hood; Refrigerator; Security System; Washer; Wine Cooler Floors: Hardwood; Tile Interior Features: Elevator; Linen Closet; Pantry; Recessed Lighting; Sound System; Walk-In Closet(s); Wet Bar Patio And Porch Features: Patio; Screened Porch Exterior Features: Garden; Private Yard; Underground Sprinkler System Roof Description: Pitched; Shingle; Wood Siding Description: Shingle Heating: Other Cooling: Central Air Fuel Type: Natural Gas Water: Public Hot Water: Water Heater Hot Water Source: Natural Gas
Listing Office: Sotheby's International Realty
Listing Agent: Gene Orloff
IDX
Last Updated: December - 16 - 2025
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