Rainwater and drainage
If mature trees stand beside the proposed surface, ask the survey to consider roots and any tree protection constraints before excavation.
Why it matters for your resin pathway: Show the direction of falls, where water gathers and every visible channel, gully or discharge point. For a resin pathway, it can affect route width, steps and gates, surface falls, edge restraint and safe everyday access.
Useful photograph: the area after rain, including low points and drainage features.
