本文由簡介紐約市以發展權移轉辦法為古蹟保存的手段；陳述其演進的過程、「 浮動移轉區」的案例。針對1998~1999年市政府提出的百老匯劇院區發展權移轉案，從其緣起、規劃背景、擬定與頒布的過程；社區民眾及專業團體的反對，至爭議、訴訟的論証，作詳細的報告與分析。總結紐約市實施發展權移轉的經驗，作為國內正考量引用類似辦法的借鏡。

　　　　　This article discusses the use of Transfer of Development Rights as a means of landmark preservation in New York City. It briefly describes the history of the changes in the TDR regulations, from the prototype "adjacent lot transfer" to cases of "district wide of floating transfer". It reports on the recent (1998~1999) case of "Theater District TDR" in New York, summaries the regulations, planning impetus, and the issues raised in the public debate during the review process. It comments on the resultant litigation brought by the opposition against the City and highlights the controversial aspect of using TDR in an extended fashion. The article intends to provide the New York experience as both a positive lesson and caution to the attempt of using TDR for extended purposes in urban planning in Taiwan.