We have an LTV tracker mortgage with NIB that we are happy with. We now want to start building a house on a family owned site. Once it is built we will try and sell the house we are living in or else rent it out. When I contacted NIB about a mortgage for the self-build they would only offer a variable rate and not a tracker rate. Any advice on who will give us a tracker for the self-build or is there some way of consolidating the mortgages?