The View from 1 Kemble Street

I'm at a funding council meeting today in London, on the 13th floor of a tower block at 1 Kemble Street.  From the window, I see the following view

It looks to me like I can see Guildford Cathedral on the horizon, as pointed to by the red arrow.  The University of Surrey nestles at its foot, in the direction of the view from where I am, though I can't obviously see it from here. 

Edit: As an astute reader pointed out in the comments, the blip on the horizon lies in the wrong direction to be Guildford, and is, perhaps, one of Croydon's tall buildings.