A rooftop garden design for the first floor involves creating a garden space on the top level of a building. This typically requires considering factors such as structural integrity, water management, plant selection, and aesthetic considerations. Designers must ensure the garden can support the weight of plants and soil, incorporate drainage systems to prevent water damage, and choose plants suitable for the local climate and rooftop environment. Additionally, the design should blend with the architectural style of the building and provide a visually appealing space.