This study aims to examine preservation policies for postwar urban development areas, focusing on the advanced efforts of the Netherlands to preserve and utilize its reconstruction heritage as a legacy for future generations. Reconstruction heritage is not frozen in time due to the absence of preservation obligations, allowing for redevelopment of the area. The absence of preservation obligations in postwar urban development areas can be seen as an advantage in reaching agreements with residents and businesses. Current preservation strategies focus solely on preserving the unique designs of buildings, without addressing the preservation of urban planning district structures or designs. Additionally, due to the difficulty in recognizing the heritage value of post-war urban development areas, efforts to raise awareness are necessary.