Hi Ian,
Have to agree with you there. This year we had one Heritage listed 3m high brick wall x 200metres long brick wall, "disappear" overnight (part of the original convent school built the year after the city was founded, Had council and heritage boards and all, and 6 heritage protected 150 year old oak and elm trees disappeared 3 weeks before that. There when I walked past them on the way home after work, gone when I walked back that way to work in the morning. Twice in a month.
cheers
kiwi