Open Booking Flat
What is Open Booking of Flats (OBF)?
Open Booking of Flats lets you apply for a flat online any time throughout the year and to book a unit as soon as the next working day. Flats that are not taken up during Sales of Balance Flats (SBF) exercises are offered through the Re-Offer of Balance (ROF) flats before they are made available for open booking. To help buyers get their homes earlier, HDB will do away with ROF exercises, and offer unselected flats from SBF exercises directly for open booking.
The Open Booking of Flats works in a similar fashion just that it is available all year round instead of only within a 7-day period during the sales launch exercise. Buyers can apply for a queue number online on a first come first served basis, and theoretically book a flat as early as the next working day.
| Online Application | Earliest Flat Booking |
| After midnight and before noon (Monday to Friday) | In the afternoon of the same day |
| After noon and before midnight (Monday to Thursday) | In the morning of the following day |
| After noon and before midnight (Friday) | In the morning of the following Monday |
| Weekends (Saturday and Sunday) | In the afternoon of the following Monday |