Administrative breaches
Late paperwork or an isolated missed notification can usually be raised and corrected without formal escalation.
Working-hours or nuisance breaches
A one-off early start may need only a reminder. Repeated disregard of an agreed restriction can justify stronger intervention.
Access breaches
An accidental use of the wrong route is different from repeated unauthorised entry or conduct affecting security and privacy.
Missing protective measures
Where protection exists to prevent damage — for example temporary support or weatherproofing — the relevant operation may need to pause until the protection is in place.
Departures from awarded drawings
Ask whether the change materially affects the notifiable work or risk to your property. Minor design changes elsewhere may not matter.
Safety-critical breaches
Instability, serious movement, damaged services or ongoing harmful excavation require immediate action and appropriate professional or emergency help.
Seriousness depends on the type of breach, its frequency, its effect and whether it continues after being raised.