it is not normal to bother with serious lighting protection for private houses in the uk
the risk is simply too low for it to be worthwhile
for serious lighting protection you basically have to design your building electrics round it
http://members.cox.net/pc-usa/station/grounding.htm
as its american it assumes the ground system is TN-C-S
and btw they talk about using extremely wide coper tape with rods frequently spaced along it between the radio system ground point and the utility ground point
the risk is simply too low for it to be worthwhile
for serious lighting protection you basically have to design your building electrics round it
http://members.cox.net/pc-usa/station/grounding.htm
as its american it assumes the ground system is TN-C-S
and btw they talk about using extremely wide coper tape with rods frequently spaced along it between the radio system ground point and the utility ground point