To comply with GDPR we will not store any personally identifiable information from you. Therefore we will serve sub-optimal experience where some features such as Login/Signup are disabled. However, you will be able to search and see all the properties, see agent contact details and contact them offline on your own.
If you fit the criteria set by HDB, you can buy the BTO or SBF anytime. Do utilise the HDB website to help you work out your financial computation, so that you know where you stand.