Noise Abatement Ordinance
(NAO)

¹ If the im­pact thresholds are ex­ceeded, new build­ings and sig­ni­fic­ant modi­fic­a­tions to build­ings with rooms sens­it­ive to noise may only be au­thor­ised if the val­ues can be com­plied with:

a.

by loc­at­ing the rooms sens­it­ive to noise on the side of the build­ing away from the source of the noise; or

b.

by struc­tur­al or design meas­ures which shield the build­ing against noise.²⁷

² If the im­pact thresholds can­not be com­plied with by meas­ures un­der para­graph 1, plan­ning per­mis­sion may be gran­ted only if there is an over­rid­ing in­terest in con­struct­ing the build­ing and the can­ton­al au­thor­it­ies agree.

³ The landown­ers bear the costs of the meas­ures.