Examples of breaches of planning control that have a high impact in planning terms and those involving significant or environmental harm such as:

• Significant and irreversible unauthorised works to a Listed Building or Scheduled Ancient Monument.
• Significant and irreversible unauthorised land engineering or waste tipping.
• Unauthorised felling of a tree covered by a Tree Preservation Order.
• Unauthorised demolition of a building in a Conservation area.
• Non-compliance with site investigation requirements.

Examples of breaches of planning control that have a lower impact in planning terms include:

• Minor breaches that minimally exceed permitted development limits.
• Minor works without planning permission. For example, walls, fences and satellite dishes.
• Small scale householder developments and domestic outbuildings such as sheds, home offices or outhouses.
• Work that has gone undetected for an extended period (but still within the period when action could be taken).