Kildare CC non-contestation policy

Recently purchased a property that's been in the family for 20+ years, the property has a couple of unauthorized developments(Original owners built), all of which have been there for the 20+ years at least.

After reading another thread, I discovered that some CC's operate under a non-contestation policy, when applying for retention planing permission for developments over a certain age.

1. Can anyone confirm if this is true?
2. Does Kildare CC operate under a similar policy?
3. If Kildare CC does what is the erection period for a development to qualify?