The house would be surprisingly vacated by the Frelinghuysen family in 1927 just six years after the signing.
They felt that the traffic on the roads in front of them had become too much and they sought a quieter location in Far Hills.
(The move was well timed as the Somerville Circle would be constructed just a couple years later.)
The mansion would be mostly vacant for decades after that. It was used as a restaurant from 1934 to 1937 and also later used for a time by the state police.
In 1945, Frelinghuysen sold the mansion and property to a charitable foundation, but no use of significance emerged from that.
Finally, in 1957, with the house in a state of disrepair, it was torn down. Coincidentally in the middle of the demolition a suspicious fire finished off the house.
Today the stone pillars from the entrance of the Frelinghuysen Estate remain. There is also a plaque (by the pillars) that commemorates the signing.
