DEL.

小米酱

DEL.DEL.DEL.DEL.DEL.DEL.

guanghui

我的理解，如果淹到了是不是叫淹没区，而这个只是有可能被淹到，所以叫易发区

Venox10111

官方解释是
Areas adjacent to the 100yr ARI floodplain that are within 0.5m of the predicted 100yr ARI flood level. These mapped areas are to ensure the appropriate planning rules are considered for properties developing adjacent to the floodplain Created by the Stormwater Hydraulic Modelling Team Last Update 23 May 2013

政府看到这个情况应该是需要一份geotech 报告，具体最好询问设计师或者geotech specialist, 论坛香港人也能更好的回答这个问题。
连接价格这个其实还要看地势，这也需要问专业的分割规划师。