Hi Anne,
It was that which had me raising the question. You see, AFAIK, the Turkish government now insists that all properties have nominal earthquake insurance cover (you can find a thread about it in this forum somewhere). Because of that, your developer will have his own insurance; but it's cover will be for a relatively small amount (I think it's £6000). So if there was an earthquake the only insurance cover you would receive, to cover rebuild costs, would be £6000. On the other hand, the TAPU will state rebuild costs at many times that amount.
One other thing: As we all know, rebuild costs and resale costs are two different things. The money we borrowed from banks/granny to pay for the property, needs to be covered in case the property and land is made unusable putting a rebuild out of the question. Therefore you may want the insurance to cover the full amount borrowed -- not just the rebuild costs.
Obviously I speak as an IT consultant and so have absolutely no idea what I'm talking about!
Glen