One of the six-strong group has reached the top of The Shard. A video feed from the Greenpeace website shows Wiola, 23, from Poland - the youngest of the climbers - fly a flag at the summit. The rest of the group is waiting a short distance behind. They will now start their descent.
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The footage was apparently shot in south London showing a motorist eating a bowl of cereal, and texting whilst sitting in traffic.
The Prime Minister is trying to curb the money laundering that goes on at the highest ends of the London property market.
The average increase across the capital is 9.2% this year - with areas in the east and south of the city up by 15-16%.