Swiss Civil Code

¹ When car­ry­ing out ex­cav­a­tion or con­struc­tion work, the own­er is not per­mit­ted to dam­age the ad­join­ing prop­er­ties by caus­ing their ter­rain to shift, ex­pos­ing it to the risk of shift­ing or by weak­en­ing ex­ist­ing struc­tures.

² Build­ings which con­tra­vene the pro­vi­sions of the law of neigh­bours are sub­ject to the pro­vi­sions gov­ern­ing en­croach­ing build­ings.