臺北市違章建築查報及後續處理決策因素

Determinants of Reporting Illegal Building Structures and Government Policy Response

臺灣的違建現象具有重要社會意涵，然而至今少有實證研究。本文使用迴歸模型，檢視臺北市違章建築查報及後續處理之個體資料。我們發現違章建築查報及處理過程存在特定的規律。違建查報數量較多的里，並不在老舊行政區，而是較晚發展的行政區。政府對於重複違法的拆後重建違建及新違建，採取較積極的處理方式。相對地，既存違建為早期興建，若無重大公安影響，多納入分期分類計畫，採取較消極的處理方式。然而民眾和政府展現的經濟理性決策，並不能正當化違建的存在。公寓大廈管理委員會的合理運作，將是未來違建問題解決和預防的關鍵。

Illegal building structures pose societal problems and demand for policy actions. Despite this demand there have been only limited empirical studies into the topic. We here employ regression techniques to analyse micro data of reported individual illegal structures in Taipei City. A number of specific patterns are revealed with respect to both reporting of illegal structures and actions taken against them. Reported illegal structures are likely to occur in newly developed neighbourhoods instead of old downtown areas. Once illegal structures have been reported, new structures and those that were previously demolished and rebuilt are more likely to be torn down. All in all, both residents and the Taipei City government take actions in their own interest. In the future, residents’ management committees could deter new illegality through collective decisions. In addition, the board in charge of resolving disputes regarding illegal buildings which has been set up in early 2020 should expedite the administrative process and increase its transparency.