Live In Chelsea, the online-only version of Made In Chelsea, had an average of 11,000 viewers per episode

The live, after-show spin-off to Made In Chelsea, had an average of 11,000 viewers on E4 for each of its 8 episodes.  A further 270,000 views were generated in total on 4oD, the catch-up service.
In addition there were 100,000 live engagements (Tweets, Facebook comments, polls) over the 8 episodes.
The broadcast show got an average of 483,000 viewers for it's 2012 series.
Source:  Paraphrased from Broadcast (paywall), 1st June 2012, linked to here, or here