Rainwater and drainage
If the plot has little fall, request a measured drainage design before assuming a permeable surface alone will resolve ponding.
Why it matters for your resin driveway: Show the direction of falls, where water gathers and every visible channel, gully or discharge point. For a resin driveway, it can affect preparation, base suitability, drainage, edging and the finished level under vehicle use.
Useful photograph: the area after rain, including low points and drainage features.
