Is 1130 sq ft the minimum accepted size for 3-bedroom dual key layouts?

No, 1130 sq ft is not the minimum accepted size for 3-bedroom dual key layouts in Singapore.

Based on current new launch data, 3-bedroom dual key units can start from sizes as low as 915 sq ft. For example, at Blossoms by the Park, the 3-Bedroom Dual Key units (Type C3) range from 915 to 1,033 sq ft, with some units starting well below 1130 sq ft.

The minimum accepted size for 3-bedroom dual key layouts varies by project and developer, but 915 sq ft demonstrates that smaller configurations are available and accepted in the Singapore market.