Will I be forced to reinstall Cavity wall insulation?

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Once the cavity wall insulation is removed from the walls we are looking to replace the render on the house for a uniform finish.
I was disconcerted by information I discovered regarding thermal requirements imposed during rendering.
https://www.planningportal.co.uk/info/200130/common_projects/18/external_walls/2

Where 25 per cent or more of an external wall is re-rendered, re-clad, re-plastered or re-lined internally or where 25 per cent or more of the external leaf of a wall is rebuilt, the regulations would normally apply and the thermal insulation would normally have to be improved.

Does this really mean that I would have to consider installing more insulation before I am allowed to render the house?
The planning portal says 'have to be improved' - which is what we are doing by removing the wet insulation.

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