Fuck!  Really sorry mate.  I hope you can repair my damage.

Genuine question.  I'm guessing the buildings are missing from the LINZ imagery I'm using?

Is there a way of easily telling what's been genuinely demolished, vs added manually by someone surveying?  I just made the assumption that if the building wasn't in the picture, it'd probably been cleared post quakes.

I realise I have a lot to learn, but genuinely hadn't considered that scenario, even though on reflection, I've added my own survey data.

I'm seeing a lot of empty sections in suburbia with buildings on sections that have been cleared in the photography, which I've taken to mean have been demo'd, and will eventually get added when the images get updated?

Recently, I've been concentrating on adding the tens of thousands of missing buildings from the LINZ data, just to try to improve the average coverage.

From memory, there's no creation date on the buildings I have checked.  Or was it just bad luck on the ones I had checked?  If I'm missing something, please let me know.  I definitely don't want to be recklessly breaking others peoples work

Sorry about the damage, I realise I'm still learning, and are keen to receive help/advice to stop me breaking more than I (think) I'm fixing.  
