My house interior wall has damp because the previous owners of house next door put earth and gravel up against my house wall , to make an area to park their cars on .
The gravel is 1 foot above the damp proof course of .my house...the new owners of the house say the gravel drive was there when they bought the house ..they wish to keep the drive and won't let me remove it from the side of my house ..I have explained to them that it is causing damp inside my house ..they aren't bothered . Is there anything I can do ..thank you