HDB's focused hotline for **carpark enforcement** is **1800-338-6622**. It is a 24-hour hotline mostly for reporting illegal parking in HDB carparks and repair roads. You may also report unlawful parking from the OneService App. For typical enquiries about year parking, it is possible to Make contact with the main HDB Department Services Line at **1800-225-5432**, which operates during frequent Business office hours. This range handles questions about time parking programs, renewals, as well as other similar administrative more info matters. It's important to work with the correct range to your specific situation to make sure a a lot quicker response.