Roof with edgeless swimming pool plan

Quick answer：

This term refers to architectural plans that include a roof design featuring an edgeless swimming pool. An edgeless pool, also known as a vanishing edge or infinity pool, is designed to give the illusion of water extending to the horizon by having one side of the pool appear to merge with the surrounding environment, typically a landscape or the sea. These pools are often built on rooftops to create a stunning visual effect and to maximize the space for relaxation and entertainment.