Trace where intense rain enters, crosses and leaves the property before buying.
Drainage is a route and a legal question
Inspect during or after rain where possible. Map roof water, terraces, pool overflow, retaining-wall drains, road channels, pumps and the final outfall. Ask who owns every crossing and whether recorded rights allow pipes or channels over neighbouring land. Look for erosion, staining, backflow, blocked culverts and downstream complaints.
Have an engineer compare levels, capacity and maintenance access; have counsel check title entries, easements, permits and estate rules. Do not accept a pump as the only resilience plan. Read the rainy-season checks, retaining-wall inspection and villa search.
Next step
Phuket Stay Pro can coordinate a wet-weather inspection and document trail.
Fact check
Rainfall, runoff, neighbouring construction, drainage ownership, permissions and capacity change. Obtain current surveys, engineering evidence and local legal advice.
Compare properties before you buy
Start with the location and buying goal. Compare handover dates, ownership options and payment terms; confirm the current price and availability for the selected unit.