For the perimeter, there must be a minimum of 10cm of closed cell spray foam insulation. This will an R-Value of 24 which will meet the recommended R-value of 20 that most countries require. All windows will be required to be triple pane tempered glass with argon gas inside. Interior insulation is decided by the owner, but can not have VOCs. VOC chemicals are illegal unless given an exception if there is no other realistic option.
Asbestos must be removed immediately. In addition, a company qualified to do so must be the ones to remove the asbestos. After remediation, a separate company must test the air for acceptable levels. No renovation nor repair work can be done if there is asbestos. All trades will be trained to identify asbestos, or at least see if there is a possibility that should be properly tested.