HDB's focused hotline for **carpark enforcement** is **1800-338-6622**. It is a 24-hour hotline mainly for reporting illegal parking in HDB carparks and repair roads. You can even report illegal parking in the OneService App. For common enquiries about season parking, you could Speak to the key HDB Department Assistance Line at **1800-225-5432**, which operates for the duration of normal Business hrs. This quantity handles questions hdb carpark hotline 880 31 on period parking applications, renewals, and various relevant administrative matters. It is important to make use of the proper amount for your precise concern to ensure a more rapidly response.