HDB's devoted hotline for **carpark enforcement** is **1800-338-6622**. This is a 24-hour hotline primarily for reporting unlawful parking in HDB carparks and service roads. You may as well report unlawful parking with the OneService Application. For normal enquiries about period parking, you'll be able to Get in touch with the most crucial HDB Department Services Line at **1800-225-5432**, which operates throughout frequent Business office hours. This range handles questions about season read more parking apps, renewals, and also other associated administrative issues. It's important to use the right quantity for your personal distinct issue to guarantee a more quickly reaction.