HDB's focused hotline for **carpark enforcement** is **1800-338-6622**. This can be a 24-hour hotline mainly for reporting unlawful parking in HDB carparks and repair roads. You may also report unlawful parking from the OneService App. For general enquiries about time parking, it is possible to Make contact click here with the primary HDB Department Support Line at **1800-225-5432**, which operates throughout regular Office environment hours. This selection handles questions on season parking purposes, renewals, and also other connected administrative issues. It is important to use the proper variety for the unique concern to ensure a speedier response.