Knollwood Estate

Knollwood Estate consists of the remains of a 60-room mansion spread across 260 acres, featuring classical columns and double staircases throughout its layout. The property also includes formal garden structures that are now surrounded by forest.

Construction of the estate began in the early 1900s under the direction of Charles Hudson. The property changed hands in the mid-20th century and was eventually abandoned, allowing the structures to gradually deteriorate.

The estate reflects how wealthy families of the early 1900s lived, with spacious rooms designed in European style and taste. Today the abandoned ruins show visitors what that grandeur looked like, even as nature slowly reclaims the structure.

The ruins are accessible through the Muttontown Preserve Equestrian Center with marked trails leading to the site. Wearing sturdy shoes is advisable since the paths run through wooded terrain and conditions vary with the season.

Rumors of hidden treasures once attracted searchers who dug through the vacant building seeking valuables and causing damage in the process. The marks of this looting are still visible on the ruins today.

Location: New York

GPS coordinates: 40.82576,-73.53633

Latest update: December 10, 2025 20:05