Resistance to the passage of sound

Approved Document E provides guidance on requirements for the protection of users of a building against sound from other buildings or sound from rooms and spaces within a building.  In terms of protection of sound the requirements refer to either airborne sound reduction, impact sound reduction and the control of reverberation by absorbtion.  Different requirements apply to different buildings and spaces within buildings. You will always need to refer to Approved Document B which can be accessed using the attached link.
http://www.planningportal.gov.uk/buildingregulations/approveddocuments/parte/approved

You can also use the quick guide provided by the link below
https://docs.google.com/document/d/1tWaG9Jw9kTMf-m-qIMtnKY5lROy7c5Fl0VveZ8guBlY/edit?hl=en