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: 8/20/2026

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, w ... (Read more)

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

General Property Info

Comp Sale YN: No
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

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

Sewer

Septic Tank Description: Title V Grade Level

Room Types

Dining Room Level: First
Kitchen Level: First
Primary Bedroom Level: Second

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 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 Sewer: Septic Tank Heating: Other Cooling: Central Air Fuel Type: Natural Gas Water: Public Hot Water: Water Heater Hot Water Source: Natural Gas Room Types: Bedroom 2; Dining Room; Kitchen; Living Room; Primary Bedroom

Room Information

Room Name	Level
Primary Bedroom	Second
Bedroom 2
Dining Room	First
Living Room
Kitchen	First

Documents

Field Card ›

Barnstable Wastewater Disclosure ›

Elevation Certificate ›

Home Inspection Disclosure ›

Listing Office: Sotheby's International Realty

Listing Agent: Gene Orloff

Last Updated: August - 20 - 2026

All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the Cape Cod & Islands Multiple Listing Service, Inc. Detailed information about real estate listings held by brokerage firms other than CC&I Assoc. of REALTORS, Inc include the name of the listing company. Neither the listing company nor CC&I Assoc. of REALTORS, Inc shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. This site was last updated 02/14/2017. All properties are subject to prior sale, changes, or withdrawal. Copyright 2020© Cape Cod & Islands Multiple Listing Service, Inc. All rights reserved