The most sought-after projects are the HDB flats in prime locations in Kallang Huangpu.

As of 5pm, the overall subscription rate for four-room flats was over 10.

Analysts believe the main reason is the low supply.

In this round of pre-purchase HDB sales campaign HDB launched a total of 9,655 units, the largest ever pre-purchase HDB sales campaign.

There are three HDB projects in prime locations, among which Kallang Whampoa has the highest overall subscription rate for three- and four-bedroom flats.

Kallang Whampoa saw relatively stiff competition because of the relatively low supply.

Although they have more restrictions, such as a ten-year minimum residence period and allowance rebates, etc., but the location of these lots is superior, and the surrounding facilities, especially near the subway station, etc., there is a mature HDB housing environment.

As for the project in Queenstown, the overall subscription rate of the four-room type is 2.1 and the three-room type is 0.8.

The first two-bedroom flexible HDB flat in a prime location was launched in Kammo district, and the subscription rate for senior citizens was as high as 8.3.

Lee Sze Teck, head of research at Hopeden Property Group, said, "Because we look at the existing HDB flats around the area like Holland, they are all 40 years old, and maybe some of the elderly people's children have already started their families and moved out and don't need such a big house, and they take this opportunity to live back in a place they are familiar with."

The second Community Care HDB flat also launched in Queenstown was also oversubscribed.

Out of 245 units, it attracted 368 applications.

As for the non-established HDB flats, the five-room flats in Tengah and the three-room flats in Yishun had the highest subscription rate among the non-established municipalities at 3.9.

By February next year, HDB will launch about 4,400 pre-purchase HDB flats for buyers to apply for.