I can currently get building insurance, for £50 a month but thats only if there is no ongoing subsidence! I want to get structual engineer involved but its the cost I may lose if I pull out of the transaction! The original cause was root induced clay shrinkage from the shrubs in the front garden!https://imgur.com/a/6TtnVgd these are all the photos I have of the garage, the cracks do not go to the floor and the different brickwork doesnt go to the slab either, which make me think it was a repair job in the past!