Generate a Data Protection Impact Assessment (DPIA) under UK GDPR Art.35 in house format for a new feature, product, or processing activity. Follows the ICO DPIA template structure. Checks Art.35(3) mandatory triggers, identifies the required DPO consultation, and flags prior ICO consultation (Art.36) where residual high risk remains. Use when the user says "write a DPIA", "data protection impact assessment for", "do we need a DPIA for this", "privacy review this feature", or describes a new data processing activity requiring assessment. Geographic scope: United Kingdom.