Oh and surprise surprise, sales people stretch the truth. The "oh others have been given extensions on their build price, you'll be able to obtain an extension. Just say this line and they will give you an extension." Less than two months later, it's constant knocking on our door asking us to sign this and that along with the story that it is a lot stricter now, so please sign this to agree to pay us for every month of delay."
Yes I understand the penalty if we are deliberately delaying the commencement of the build, but being penalised for something that is out of our control (settlement of new land) is just disappointing and makes you think twice about whether to proceed with this builder or not.
Be careful of the friendly smiling consultants! No truth ever comes from their mouth. :)