Among the ten projects launched, about 60% of the flats are in non-established towns, accounting for nearly half of the total number of non-established towns available for application for the year.

The Kallang Horizon, Ghim Moh Natura and Ulu Pandan Banks, launched under the prime HDB model, are priced from $335,000 for a three-bedroom unit after allowances; and from $509,000 for a four-bedroom unit.

The authorities also launched seven other projects in Bukit Batok, Tengah, Yishun and Queenstown.

This round of pre-buy HDB sales will end on the first of next month.

National Development Minister Lee Chee Seng said in a social media Facebook post that the authorities had earlier pledged to launch up to 23,000 pre-purchase HDB flats this year and have now surpassed that target with a total of 23,184 flats. The authorities will launch another 23,000 units next year.