By 1945, the Board of Trustees determined that the Bronx campus was no longer suitable, lacking certain laboratory facilities, and ultimately sold it for a considerable sum.
The site was redeveloped as the Fordham Hill Apartment complex.

In November 1945, the Institute purchased its current home: The Braes, the former country estate of Herbert L. Pratt, in Glen Cove on the North Shore of Long Island.
 Designed by James Brite and constructed between 1912 and 1914, the main house had a distinct H-shaped layout and Jacobean, Tudor, and Renaissance-influenced design elements that made it distinct among Long Island estates of the era.
 It was the largest of the six Pratt estates in Glen Cove.
Conversion work began in 1946.

In April 1947, classes began at the new campus in Glen Cove.
The main building had been renovated to include classrooms, dormitories, and offices.
A model basin and gymnasium were constructed elsewhere on the campus.
The main building was renamed Stevenson Taylor Hall in honor of the charter member and President of the Board of Trustees (1900–1926) of the institute.
Through the conversion, the ground floor of Stevenson Taylor Hall retained much of the original 1915-era decor.

A modern library and auditorium were added to the campus in 1971.
Webb first admitted women as students in 1974.

Webb Institute was used for the exterior shots of Wayne Manor in the 1995 film Batman Forever, again in the 1997 film Batman & Robin, and for interior and exterior shots for the 2014 TV series Gotham.
The Webb Institute reprised its earlier film role as Wayne Manor for the 2019 film Joker.
It was also featured in the 1998 film Great Expectations.
Interior and exterior shots appeared in the 2015 TV series Limitless in Season 1, Episode 14.
By 1945, the Board of Trustees determined that the Bronx campus was no longer suitable, lacking certain laboratory facilities, and ultimately sold it for a considerable sum. The site was redeveloped as the Fordham Hill Apartment complex.
In November 1945, the Institute purchased its current home: The Braes, the former country estate of Herbert L. Pratt, in Glen Cove on the North Shore of Long Island.  Designed by James Brite and constructed between 1912 and 1914, the main house had a distinct H-shaped layout and Jacobean, Tudor, and Renaissance-influenced design elements that made it distinct among Long Island estates of the era.  It was the largest of the six Pratt estates in Glen Cove. Conversion work began in 1946.
In April 1947, classes began at the new campus in Glen Cove. The main building had been renovated to include classrooms, dormitories, and offices. A model basin and gymnasium were constructed elsewhere on the campus. The main building was renamed Stevenson Taylor Hall in honor of the charter member and President of the Board of Trustees (1900–1926) of the institute. Through the conversion, the ground floor of Stevenson Taylor Hall retained much of the original 1915-era decor.
A modern library and auditorium were added to the campus in 1971. Webb first admitted women as students in 1974.
Webb Institute was used for the exterior shots of Wayne Manor in the 1995 film Batman Forever, again in the 1997 film Batman & Robin, and for interior and exterior shots for the 2014 TV series Gotham. The Webb Institute reprised its earlier film role as Wayne Manor for the 2019 film Joker. It was also featured in the 1998 film Great Expectations. Interior and exterior shots appeared in the 2015 TV series Limitless in Season 1, Episode 14.
Webb Institute