The former City of Sydney lord mayor Nelson Meers and his wife Carole are set to emerge as Point Piper buyers.
It is set to be be registered at $16 million, a tad higher than Domain's estimate of $15 million plus.
The purchase followed their Bayview home sale six months ago for $4.55 million.
Set on Buckhurst Avenue, the harbour front apartment was an investment for John Roth and his wife Jillian Segal, who bought it new in 2011 for $11.6 million.
The deal was done by LJ Hooker agent Bill Malouf.