Bailiffs have arrived at Connaught House in Muswell Hill in North London where it's expected 11 families will be evicted today.
The remaining residents have been given until the middle of April to move - some have been re-housed by the leaseholder, but others say they will be homeless.
Residents of Connaught House say they were initially told about the move in 2006 but it was not until last year that they were informed of the deadline - originally December but which was extended.
The Met plans to sell its properties, including the iconic Scotland Yard building, in an attempt to save £500m.
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The station, which saw 44m people commuters use it in 2016/2017, will be transformed into a dining room complete with Christmas decorations.
Part of the monster fatberg will go on display in the Museum of London, while the rest of it will be converted into biodiesel.
Major engineering projects at key London stations mean hundreds of trains will be cancelled or diverted.