Stay of proceedings. An appeal shall stay all legal proceedings in furtherance of the action appealed from, unless the officer from whom the appeal is taken certifies to the Board of Appeals that, by reason of facts stated in the certificate, a stay would, in his opinion, cause immediate peril to life or property. In such cases, proceedings shall not be stayed otherwise than by a restraining order which may be granted by the Board of Appeals or by a court of record on application, on notice to the officer from whom the appeal is taken and on due cause shown.