Celebrity Homes

Copper baron’s historic Gilded Age mansion hits market after extensive restoration

James McLean, a copper baron from the Gilded Age, built the impressive Belle Terre mansion in 1906 as a summer home and fox hunting retreat in New York's Catskill Mountains. 

According to Mansion Global, the meticulously restored estate has been listed for sale at nearly $3 million (AUD$4.5 million), showcasing the grandeur of early 20th-century American architecture.

The 24,600-square-foot property spans more than 38 acres and features 16 bedrooms, 14 full bathrooms, and four half-baths. 

Given the original owner’s industry, the roof is made entirely of copper, with other copper details throughout the home, including a perfectly preserved balustrade.

Annabel Taylor of Four Seasons Sotheby’s International Realty, is handling the listing.

The current owner, neo-expressionist artist Hunt Slonem, purchased the property in 2017 for just under $1 million (AUD$1.5 million) from the Phoenix House Foundation, which had used it as a residential drug treatment facility.

Slonem undertook extensive restoration work to return the mansion to its original splendour.

Photo. Annabel Taylor Homes

Prior to Slonem’s ownership, many of the grand rooms had been divided into smaller spaces. 

Slonem removed these additions and restored the home’s original layout, preserving the large parlour rooms, dining rooms, and libraries.

The restoration process involved significant work, though many original architectural elements remained intact. 

Photo. Annabel Taylor Homes

Where original features had been removed or damaged, Slonem carefully replaced or restored them, adding new mouldings to match the original design. 

He also renovated all the bathrooms and restored the home’s elevator to working condition.

The property’s storied past includes hosting Eleanor Roosevelt, who attended a party there as a friend of McLean’s daughter. 

According to the listing, this gathering attracted an impressive 6,000 guests.

Photo. Annabel Taylor Homes

Located about three hours north of Manhattan near the small town of Stamford, the estate grounds feature rolling hills, a private lake, gardens, and a restored pool. 

Slonem converted a picnic pavilion into a greenhouse and built an enclosed hallway connecting the main house to an addition that now houses his collection of 19th-century aquariums, paintings, and large statues.

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Rowan Crosby

Rowan Crosby is a senior journalist at Elite Agent specialising in finance and real estate.