The "GPDO Part 1 Class A (Larger Rear Extensions) - Background Information" page has been updated to include the following additional information:

• 25/04/2013: Royal Assent - On 25 April 2013, the Growth and Infrastructure Bill was granted Royal Assent, and became the "Growth and Infrastructure Act 2013" (link to Act) (link to press release).
• 23/04/2013: Letter from Nick Boles to the Chair of the Communities and Local Government Committee about the revised version of the proposed changes to Part 1 of the GPDO (pdf) (link).