A client received compensation from the county/state for buying part of his land for road widening. He received a 1099-S he still owns his house and has not sold his home. So I am using form 4797 instead. I was thinking that I can allocate a portion of the adjustment basis of his property to the area taken by eminent domain. Can I also  report how much the property would of been if sold in the future? Need some guidance on this one. So property was bought for $245,000.00 in 2009, is valued at apx. $400,000.00. He received $30k from the county/state.  Client is trying to figure out how much it will be once they start widening the road. Thanks in advance.