27 Bedroom Gatsby Era “Cashelmara” Estate on 6.4+/- Acres in Glen Cove, NY Going To Auction!



Location: Glen Cove, Long Island Sound, Nassau County, New York
Auction Date: July 14, 2021
Previously Asking: $14.9M
Guaranteed Minimum Bid: $5M

Estate Details

Built: 1937 (Major Remodeling in 2019)
Size: 32,802+/- Sq. Ft.
Bedrooms: 27
Bathrooms: 12
Lot Size: 6.4 Acres


  • Panoramic Views: Overlooking Long Island Sound
  • Amenities:
    • English country tavern room
    • Bowling alley
    • Indoor 2-court tennis facility
  • Setting: Private, within the Glen Cove Golf Course
  • Scenery: Dramatic views of Dosoris Pond and Long Island Sound

Potential Uses

  • Corporate retreat
  • Showcase home
  • Residential condominium
  • High-end catering facility
  • Hotel

Property Previews


  • Sunday, June 20th
  • Sunday, June 27th

Note: Previews are by appointment only.

Auction Information

  • Online Auction Concludes: Wednesday, July 14, 2021, at 11:00 AM
  • Registration: Visit our website for additional details and to register for the Property Information Package.

Contact Information

In Cooperation with: JJ Manning Auctioneers