Did you have any label that your home is there?
And just for your better knowledge, place first the protection stone, and later on work on the land. OR, work the land extremely fast, within some hours.
There were previous issues of the same kind, because people see the protection stones as a cost that is avoidable for their property. Spend on them in order to DONT have these issues.
Wait for a moderator to handle your issue. My post was just for further information+knowledge..