Swiss Civil Code

¹ The re­gis­trar must no­ti­fy in­ter­ested parties of all dis­pos­i­tions in the land re­gister made without their know­ledge; he or she shall, in par­tic­u­lar, no­ti­fy any ac­quis­i­tion of own­er­ship by a third party to parties with rights of pre-emption which are entered un­der pri­or­ity no­tice in the land re­gister or to parties with rights which ex­ist by law and are evid­ent from the land re­gister.⁶⁸⁶

² The time lim­it for chal­len­ging such dis­pos­i­tions be­gins on re­ceipt of such no­ti­fic­a­tion.