Harold Pratt House

Built in 1919 as one of Park Avenue's last great Gilded Age mansions, the Harold Pratt House is a timeless hidden jewel nestled in the heart of the Upper East Side. Behind its stately doors, old New York elegance lingers in every detail, inviting guests into a world where history, romance, and celebration intertwine.

Whether you're exchanging vows, hosting an intimate engagement dinner, or gathering loved ones for a once-in-a-lifetime occasion, the House offers a setting that feels both grand and deeply personal. Six beautifully appointed rooms unfold gracefully around a sweeping marble staircase, each adorned with original crystal chandeliers, glowing fireplaces, and picturesque views of Park Avenue.

For larger celebrations, the adjoining Peterson Hall seamlessly extends the experience while preserving the home's refined charm.

At the Harold Pratt House, every gathering becomes part of the home's enduring story. We warmly invite you to step inside and create a chapter of your own... one filled with unforgettable moments, timeless beauty, and memories to last a lifetime.

Facilities and Capacity
A majestic marble staircase connects the ballroom and each of the six rooms, which includes a library, drawing room, and reception. Each room features cathedral ceilings, original chandeliers, fireplaces, and views of Park Avenue. Couples with larger guest counts can choose to use Peterson Hall that adjoins the rooms, and the mansion can hold up to 180 guests.

Services Offered
The ballroom, in conjunction with the other rooms of the house, can host any event, whether it is a bridal shower, ceremony, engagement party, or reception. The Harold Pratt House also includes a bridal suite, several audio/visual capabilities, and in-house furniture such as tables and chairs.

Other Facilities
Inside the reception room are a fireplace and wood paneled walls, which bring warmth to the room. The reception room adjoins the drawing room and sitting room, which can all connect to be utilized for larger receptions. Moreover, the sitting room is a corner room with architectural moldings and a decorative fireplace that is used for more private and smaller parties, while the library fosters a dramatic setting fit for any reception. The library includes a marble fireplace, burnished walls, and a wraparound balcony for couples to use. The ballroom is fit for sit-down dinners, as there is beautiful inlaid flooring and gracious double-heighted windows that offer memorable views of Park Avenue.

History
This elegant home was constructed between 1919 and 1920 by architect William Adams Delano using the best available materials. It is said that the cost of construction equated to over one million dollars in 1920. In 1944, no one was living in the home, and as a result, the home was boarded up due to the Great Depression. On April 16, 1945, the home officially opened as the new headquarters for the Council on Foreign Relations, after it was donated to the Council.