Planning permission no longer required for non-domestic solar installations. This follows a new set of regulations under the permitted development rights that came into effect on April 6 this year.
It is remarkable because Sukasol remembers when it was about to install solar on the Shree swaminarayan Temple in Cardiff and the bureacracy it had to go through. Details of this piece of news which has been gleaned from the solarpowerportal website can be found here: No more planning permission
Further details about the new regulations can be read from here: Town & Country planning