Housing inventory and secondary homes rate

The apartment inventory map service shows the status in blue primer of the municipalities that are subject to the building regulations of the Second Housing Act (ZWG, SR 702) and are only allowed to set up second homes under strict conditions (ZWG Art. 7ff.). The Second Homes Act defines the limit of a second home proportion at 20 per cent. The Second Homes Act obliges all Swiss municipalities to create an annual apartment inventory to calculate the number of proportion of second apartments. The basis for this is the Swiss Federal Register of Buildings and Dwellings. The Swiss Federal Register of Buildings and Dwellings is maintained by the municipalities and evaluated by the Federal Office for Spatial Development by 31.12. The Federal Office for Spatial Development will publish the apartment inventory and number of second apartments at the end of March. Municipalities whose second apartment share in March was under or over the limit of 20 per cent will be subject to a procedure to check the second apartment share. The list of the state of proceedings (status) will be updated at the end of October. The percentages of the apartment inventory will remain unchanged until the next publication of the apartment inventories at the end of March, as the exact values ​​do not always have to be determined in the examination procedure for the decision below or above 20 percent second home share. For more precise information, the municipalities are responsible for ongoing proceedings. The municipalities have to show the total number of apartments and first apartments in the apartment inventory, however, there is no obligation to declare first apartments, equivalent apartments or second apartments as such in the RBD. Therefore, the data from the apartment inventory regarding second apartments cannot be compared with data from other municipalities.本公寓库存地图服务以蓝色底色展示受《第二住宅法（Second Homes Act, ZWG, SR 702）》建筑法规约束的市镇状态，此类市镇仅可在严格条件下设置第二住宅（《第二住宅法》第7条及后续条款）。《第二住宅法》将第二住宅占比上限设定为20%。该法要求瑞士所有市镇每年编制住宅库存清单，用于核算第二住宅的占比与数量，编制依据为瑞士联邦建筑与住宅登记簿（Swiss Federal Register of Buildings and Dwellings）。瑞士联邦建筑与住宅登记簿由各市镇维护，联邦空间发展办公室（Federal Office for Spatial Development）需于每年12月31日前完成数据评估。联邦空间发展办公室将于每年3月底发布当年度的住宅库存清单及第二住宅数量。若某市镇3月统计的第二住宅占比低于或高于20%的上限，则需启动第二住宅占比核查程序。程序状态清单将于每年10月底更新。在下次3月底的住宅库存清单发布前，住宅库存占比数据将保持不变，这是因为在针对第二住宅占比是否突破20%阈值的核查程序中，未必总能确定精确数值。如需获取更精准的信息，各市镇需负责推进相关核查程序。各市镇需在住宅库存清单中列明住宅总数及首套住宅数量，但《瑞士联邦建筑与住宅登记簿》并未强制要求申报首套住宅、等效住宅或第二住宅的具体类别。因此，不同市镇间关于第二住宅的住宅库存数据不具备可比性。