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(516) 358-8867

Serving Long Island & All Surrounding Areas

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Serving Long Island & All Surrounding Areas

BBB gives our tutoring services an A+

Long Island Tutors

Private Tutors in Long Island for All Subjects & Grade Levels

Looking for a great Long Island Tutor? From elementary all the way up to college and graduate school, our experienced team at Grade Potential ensures that you’ll receive the highest quality tutoring on your way to achieving your goals, all at an affordable price! We've worked with thousands of local students, so we know what it takes to be successful around here.

New clients receive a risk-free trial session where you can meet a tutor with no obligation. If you're not thrilled after your first hour, we don't charge you anything! Call us now to learn more and get specific pricing.

Long Island Tutors

Getting Started Is Easy!

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(516) 358-8867(631) 218-8867

About Long Island

The second largest private home in all of the United States is located on Long Island. Otto Hermann Kahn, who was a financier by trade, built the 109,000sq ft behemoth shortly after the turn of the twentieth century. Long Island tutors tell us that the home is fondly called “Oheka Castle.” Kahn coined the name “Oheka”; it is an acronym from his name. (He also christened his yacht and Ocean Villa in Florida with variations of the same name.) Particular attention was paid to the sturdiness and fire retardancy of the build during construction of “Oheka” because Kahn’s previous home in Morristown, New Jersey had burnt to the ground. The home became the first to have its structure be fashioned entirely out of concrete and steel. Increasing the difficulty and duration of the job, the building was also built on top of a manmade hill. This was designed so that the building had a better vantage point for viewing the surrounding countryside.

In its original incarnation the grounds consisted of glorious French style water terraces, with clipped hedgerows, a full eighteen-hole golf course, a complex of green houses, tennis courts, arboretum, horse stables and a landing strip. The land use was altered significantly when the property was sold after Kahn’s death. It was bought up by the Eastern Military Academy and was subsequently used as a school; unfortunately, they did not keep the high maintenance gardens. According to Long Island tutors the gardens were destroyed, and after the school closed it became victim to numerous arson attempts and general vandalism. Despite this the building structure remained in tact even if rundown and dilapidated. Eventually parcels of the land linked to the property were sold, much of it became developed into single-family homes. The golf course and stables became included in the grounds of the Cold Spring Country Club, and the greenhouse complex took on a life of its own as the “Otto Keil Florist.”

In 1984 the history of Oheka was greatly changed when a building developer from Long Island who had long been enamored by the estate purchased Oheka and set about attempting to restore her to her original glory. This was a very expensive and time-consuming undertaking. He even planned to reinstate the gardens per their original design but eventually he ran out of money and had to sell the property midway through development. He sold the property and worked stalled, a few years later the building was inherited by the new owners daughter who allowed Melius to continue work on the property under some kind of lease-to-buy arrangement. Finally it was transformed to its former glory and it opened as a luxury hotel. The building that recently was converted into a hotel has over one hundred rooms, thirty-two of which are now guest rooms. It provides a fantastic venue for weddings and functions, and the “castle’ with it’s extensive grounds is a very popular location for movies and television shows.

Getting Started Is Easy!Call us now: (516) 358-8867(631) 218-8867

Long Island Tutors

The gardens of Oheka Castle

Long Island Scholarship

Grade Potential Tutoring is proud to provide Long Island students with the opportunity to win a semi-annual college scholarship of $1,000! We are proud to assist students with their investment in education. Many local families trust us with their educational investment on a regular basis, so we feel great about giving back in a similar way! Click below to learn more about our scholarship program and how to apply.Learn How To Apply

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Long Island, NY
(516) 358-8867

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Long Island Scholarship


Thanks for your interest in our scholarship! Every six months, we select the essay that our panel of 3 judges determines to be the best.

The Fall deadline to apply is November 15th. The Fall winner will be announced to all applicants on December 10th.

The Spring deadline to apply is May 15th. The Spring winner will be announced to all applicants on June 10th.

The current essay prompt is, “Who has inspired your education the most and why?”

Please email your entry to: scholcontest@gradepotential.com

Entries must be between 300-1,000 words.

No purchase necessary to enter or win. Void where prohibited by law. One entry per household per year. Winner will be notified via email on or before the Winner Selection Date. Failure by potential winner to respond to such notification within ten (10) days of notification, or failure by the potential winner to adhere to these Official Rules, will result in disqualification of the potential winner and an alternate winner will be selected.


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Call us to learn more:

(516) 358-8867

(631) 218-8867