HDB's committed hotline for **carpark enforcement** is **1800-338-6622**. It is a 24-hour hotline largely for reporting illegal parking in HDB carparks and service roadways. You may as well report unlawful parking throughout the OneService App. For common enquiries about season parking, you can Call the leading HDB Branch Service Line at **1800-225-5432**, which operates during frequent Business office hours. This number handles questions on period parking applications, renewals, and other similar administrative matters. It's important to implement the right quantity for your personal distinct problem to ensure a here speedier response.