Based on my look for, the final HDB hotline is 1800-225-5432 . It is a Branch Place of work Provider Line that operates on weekdays from 8:00 AM to 5:00 PM. In addition, you will discover other contact numbers for specific solutions: * HDB Primary Line: 6490-1111 (for basic enquiries, https://how-to-get-hdb-floor-plan67666.blogminds.com/hdb-town-council-hotline-210-22-34083872