Kelley‑O’Brien Mansion: A Historic Jewel of St. Augustine Finds a New Owner

by Kevin Howard

The iconic Kelley‑O’Brien Mansion, long admired by locals, has just sold. This Queen Anne–style estate carries a rich history that reflects the grandeur, tragedy, and transformation woven into the tapestry of St. Augustine’s past.

A Winter Retreat Transformed into a Legacy Home

Built in 1885, the Mansion was commissioned by Henry Stanton O’Brien, a Civil War veteran-turned-New York real-estate magnate. Seeking a serene winter retreat, O’Brien acquired 43 acres from none other than Henry Flagler, placing his three-story, nine-bedroom masterpiece on a quiet peninsula south of St. Augustine. The structure showcased innovative coquina-and-concrete construction—echoes of designs used in Villa Zorayda—reflecting the era’s bold architectural experimentation.

O’Brien’s son, 12‑year‑old Lewis, sealed a time capsule within a hidden air vent:

“This house is now being built by Henry Stanton O’Brien … I write this so that perhaps 100 years or more from now, people will know who had this house built.”

Triumph & Tragedy: The O’Brien Family Story

O’Brien’s vision was tragically cut short. Between 1886 and 1896, the family was devastated by illness, losing Lewis, his mother Lizzie, and younger son Henry. O’Brien himself passed in 1912. Through grief and resilience, the Mansion’s story continued, echoing wider shifts in St. Augustine’s cultural landscape.

From Revival to Fish Camp: A Transformation Tale

After O’Brien’s passing, the estate was acquired by John Lake Young of Atlantic City, igniting rumors of Prohibition-era speakeasies, ties to bootleggers, and mob activity including visits from Al Capone. By the 1930s, it was repurposed as the Dixie Home for the Aged and Infirm Deaf. Once that institution shuttered, the Kelley family purchased it around the 1950s, operating it as a fish camp while preserving most of the original structure. They added a few trailers to enjoy the comforts of air conditioning, electricity, and running water, but left the house largely untouched.

In an extraordinary echo of history, the same hidden note from Lewis was discovered in 1980 by an extermination crew—a serendipitous reminder of the estate’s enduring spirit.

Restoration & Guardian Stewards

By 1998, the aging Kelley family turned the Mansion over to Bruce McLean, who—with family assistance—embarked on a devoted restoration. Detailed craftsmanship returned to the mansion: heart‑pine floors reinstated, spindlework restored, and original furnishings preserved. Bedroom sets crafted by the estate's first carpenters, complete with orange‑cross‑section carvings, remain intact.

Local craftsmen like Jon Benoit praised the mansion’s extraordinary details:

“Sometimes I bring my carpentry subcontractors to show them the kind of work these craftsmen were doing a hundred years ago by hand.”

This revival included meticulous work on architectural pearls—from massive carved door frames to the crowning widow’s walk offering sweeping views of water vistas.

The McLean family even petitioned for the Mansion’s inclusion on the National Register of Historic Places, ensuring its next chapter honors its past.

Passing the Torch: The Journey Continues

Now, as the Kelley‑O’Brien Mansion settles into its new ownership, its legacy endures. Echoing Lewis’s message from a century ago, a new steward takes up the mantle, tasked with both honoring the past and writing the next chapter. From majestic architecture to generations of community impact, this landmark remains a living testament to St. Augustine’s historical and cultural journey.