Taking my mums dog for a street walk this morning I saw this wall in one of the alleyways I go down. I've been noticing it for years but next door has had their rear garden wall replaced which made it look more noticeable. I'm assuming that the new wall is straight so would you say the other wall has a dangerous lean? I once heard and felt a wall of that size fall down where next doors kids had been playing only moments earlier and the screams from the mum made us go cold. (Fortunately her kids had gone next door). Is it worth reporting to the local authority and if so, which department?