We purchased a rural block in 1981 with a house supposedly on it. We paid for a search by a solicitor that did not show up any problems. In 1992 we applied to Council to raise the house and build in under as owner builders, which was granted. Council now advise that the house was built on the road reserve ( in 1942) and not on our property and want us to pay the costs to remove/demolish the house. Do we have any recourse as the council approved the build?