^^ interesting... you know better, I suppose, although the site does not say this; I just naturally assumed that the hight is given above the ground level. Actually, it is 62 floors above the ground (plus 5 underground levels), so it is likely to be around 275m.
And speaking of 275 m... The Naberezhnaja Tower C, now quoted as 56 floors 252m appears to have reached about 250 m by the central core alone, with projected number of floors of at least 60, and hight around 270 m. Looks like the final hight has been increased during construction.
This is Feb 02 status by
masik from SCC: