This was my timetable:

16/1/2015 posted forms
23/1/2015 cheque cashed
24/1/2015 got letter confirming our application had been received
4/2/2015 Got the go ahead to do the biometrics
13/2/2015 Did the biometrics
11/3/2015 Got letter confirming success of application
13/3/2015 Received BRP in the post!