Are you sure? I've looked for guides but keep finding pages where the author seems to have muddled/blurred PP and BC together into one confusing mess.Since Grenfell Building Control have now got 10 years from completion to issue an enforcement notice, and to prosecute the builder. Used to be one year and 2 for the builder.
Edit: Yes, it's 10 years...
Failure to comply with the building regulations - Building Regulations - Planning Portal
Details of your responsibilities in regard to building regulations
No idea how/whether this applies retrospectively, e.g. to something that was built 9 years ago today.
