850 Sea View Avenue
Barnstable, MA · $7,950,000
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📊 STR projections🏖️ Beach distances🌊 Flood-zone risk📄 Investment dossier💰 Cash-flow analysis

850 Sea View Avenue

Barnstable, MA 02655
$7,950,000
211 days on market · DEL → ACT on Mar 17, 2026
Data refreshed Apr 8, 2026
Water view🌊 Not in FEMA SFHA (Zone X)Tax: $42,248/yr (2026)
View on Zillow ↗
Type
SF
Beds
8
Baths
8
Sq Ft
7,350
Acres
1.22
Year Built
2005
$ / Sq Ft
$1,082
Days on Market
211

Investment Snapshot

🟡 MEDIUM RISK
Monthly Carrying
$43,838
Cash Flow / yr
$-371,071
Cash-on-Cash
-16.7%
Cash Required
$2,226,000
Projected Revenue / yr
$234,738
Avg Daily Rate
$1,462
Occupancy
44%
STR Range (P50)
$168,647
🟡 MEDIUM RISK — Varies by village. Registration generally required.
STR revenue range: $106,776 – $235,349
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Location & Nearby

Map of 850 Sea View Avenue, Barnstable MA with nearby beaches and points of interest
HThis property
  • A
    ⛳ Wianno Golf Club
    1.02 mi
  • B
    ⚓ Crosby Yacht Yard Inc
    1.32 mi
  • C
    ⚓ Osterville Town Marina
    1.42 mi
  • D
    🛝 Osterville Village Library Playground
    1.63 mi
  • E
    🍽️ Five Bays Bistro
    1.65 mi
  • F
    ⚓ Nauticus Marina
    1.66 mi
  • G
    🍽️ CRISP
    1.68 mi
  • H
    🍽️ Gone Chocolate
    1.70 mi

About this property

At the west end of Osterville's iconic Sea View Avenue in Wianno, this extraordinary estate is more than a home-it is a masterpiece of craftsmanship and artistry. Set on 1.2 acres of horticultural privacy with glimpses of West Bay, the 7,350 sq. ft. residence showcases hand-built mahogany windows and doors, quartersawn oak floors, curved walls and bespoke cabinetry and moldings-all created with skill from a bygone era. Seven bedrooms in the main house are complemented by a one-bedroom apartment above the three-car garage, complete with radiant floors. Outdoors, a 50-foot gunite pool and stone terrace shaded by Japanese maples invite alfresco dining, while waves on Nantucket Sound echo just across the avenue. Ownership includes rare deeded access to a private Nantucket Sound beach and to Eel River for kayaking and paddle boarding. At 850 Sea View Avenue, every visit reveals new beauty and discoveries making this home a true legacy property. Please verify all information contained herein

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Listed by Jack Cotton, Sotheby's International Realty