There are approximately 520,000 HDB 4-room flats, about 250,000 HDB 5-room flats, and around 250,000 HDB 3-room flats in Singapore. These figures reflect the general distribution in the national HDB flat supply, with 4-room flats as the most common, followed by nearly equal numbers of 3-room and 5-room flats. For the most detailed and current flat-type statistics, EdgeProp Singapore provides further breakdowns by specific estate or town.
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