6 April 2008 EPCs required on construction for all dwellings.
EPCs required for the construction, sale or rent of buildings other than dwellings with a floor area over 10,000 m2.

1 July 2008  EPCs required for the construction, sale or rent of buildings other than dwellings with a floor area over 2,500 m2.

1 October 2008 EPCs required on the sale or rent of all remaining dwellings
EPCs required on the construction, sale or rent of all remaining buildings other than dwellings.
Display certificates required for all public buildings >1,000 m2.

4 January 2009  First inspection of all existing air-conditioning systems over 250 kW must have occurred by this date*.

4 January 2011  First inspection of all remaining air-conditioning systems over 12 kW must have occurred by this date*.