SOLD
Seaview Terrace
43,722 sq. ft. | 7.7 Acres | SOLD for $16,000,000
Marielle Clair
SOLD
A Century of Grandeur Overlooking Newport’s Cliff Walk
Seaview Terrace stands as Newport’s largest privately owned mansion, a 44,000 sq. ft. estate completed in 1925 at the height of the Gilded Age. With its 64 rooms, 29 bedrooms and 7.64 acres of land, it remains one of the last great American estates in private hands. Explore the images below to experience its historic halls, sprawling lawns, and breathtaking coastal setting.



Estate Highlights
- Modern, minimalist 43,722 sq ft Mansion– among the largest private residences in the U.S.
- 7.7 Acres – private, gated estate setting
- Gatehouse Residence – potential to stand alone as its own lot or be redeveloped
- Selective Future Potential – opportunities to thoughtfully unlock additional value
- SOLD for $16,000.000
Walk Through America’s Last Great “Cottage”
Explore Seaview Terrace room by room with an immersive 3D tour. From its vaulted Gothic halls to its private cloisters and grand entertaining spaces, this digital walkthrough offers a rare perspective on one of the largest private residences in America.

A Rare Dual Opportunity
Seaview Terrace and its adjoining parcels present an unmatched chance to pair historic preservation with modern vision. Together, they offer scale, flexibility, and distinction rarely found in Newport’s estate market.
The Historic Mansion
43,000 sq ft of dramatic interiors, including ballrooms, cloisters, and more than 50 rooms. Seaview Terrace stands ready for thoughtful restoration — whether maintained as a single private estate or adapted for a new vision that honors its architectural legacy. Depending on future use, portions of a rehabilitation project may qualify for historic preservation incentives.
Further Possibilities
Beyond the mansion and gatehouse, the estate offers additional avenues for considered enhancement. The parcel directly behind the Gatehouse, with frontage on Marine Avenue, represents another discreet opportunity for value creation. Both parcels are envisioned at approximately 60,000 sq ft each, providing scale consistent with Newport’s luxury estate market and zoning requirements.
Development Opportunity
The estate’s 7.64 acres with multi-street frontage allow a buyer to shape Seaview’s future — whether envisioned as a grand private compound or a property with multiple complementary components.
Condo Conversion
Adapt the mansion into a curated collection of luxury residences.
Gatehouse Redevelopment
Guest, staff, or additional residential use.
Marine Avenue Lots
Potential for three estate-caliber homes.































































