Ofcom is expected to vary ALL transmitting licences early this year to require licensees to evaluate the risks to third parties from their transmissions. There has been much discussion and Ofcom have released a spreadsheet based tool for assessing whether your station is compliant or maybe needs remediation.
The RSGB has also produced a front end for this calculator to allow amateurs to include more detailed aspects of their station easily e.g. mode and antenna gain.
There is also some software available similar to the RSGB tool but more complex,
link here: EMF Tool download site
and an online web based tool which is very simple to use.
link here: web based calculator