Looking for advice 
We are in the process of selling our current house and purchasing a new one.
The property we are buying is a 3 bed but we are planning to convert the integral garage to create a 4th bedroom.
We are trying to get insurance quotes for buildings and contents but having no luck as no one will insure for building work.
I’m getting to the point of thinking we just get a normal policy and tell them once the work has been completed
Does anyone know of any insurers that will cover having building work done on their polices?
Or what has everyone else done?