Developers expect flood-related buying slowdown of at least 6 months, mainly in flood-hit eastern Bangkok. Columnist says the bigger problem is that homes can be sold but not transferred, because banks are not lending. Flood-prone areas like Romklao may see less interest, and a trend toward raising houses, rebuilding, or moving to condos is likely. For a builder, supplier or property-related SME, plan for slower cash flow in the next half-year and check customers' loan approval before committing.