Singapore’s new HDB framework classifies new BTO flats into Standard, Plus, and Prime flats based mainly on how attractive the location is. The more central and desirable the location, the more subsidies HDB gives — but also the stricter the rules. This system replaced the old “mature vs non-mature estate” distinction from the Oct 2024 BTO launch onward. Here’s the practical difference: Feature Standard Plus Prime Location Regular estates; may still be near MRT or amenities B