Just hours after it was announced that 8,000 HDB units were up for sale, applicants packed the HDB Hub in Toa Payoh.
By 8am on Wednesday, a crowd of people were waiting to submit their applications.
Others went online in a mad rush to apply for a new home. Applications must be in by April 3.
Last night, the spike in site traffic slowed the HDB website to a crawl.
HDB put up a notice on its website yesterday, alerting netizens to the problem.