It was my understanding that circuits were not permitted once the airfield has officially closed? You can land but touch and goes etc. are not allowed.
I've heard on the RT before, traffic advising that they wanted to do some circuits after 19:00 and the controller reminded them that they were not permitted - the aircraft changed its request to land only.
Circuit height at Cranfield is 800' irrespective of type, for noise abatement procedures - I should know as once again I attempt to smooth out the threshold at R22 in my never ending spiral
