We are in the process of buying a bungalow which we have since found out has grade b mundic in the foundations. As it stands the property is not mortgageable because of the mundic. In order to make the sale & not lose value on the property the seller said they would have the mundic foundations removed & replaced. However this has not happened. Instead he is having the underfloor void filled with concrete to effectively shore up the foundations should the mundic start to decay the foundations. We don’t think this is an acceptable method of dealing with this issue & will probably have to walk away from the property but I wondered if anyone had dealt with mundic foundations in this way before? Thanks.