Status the text uses

Foreign person, for landed property. Foreigner who is not a citizen or permanent resident, for additional buyer's stamp duty.

What the text supports

Landed houses, including Sentosa Cove, need Singapore Land Authority approval. A condominium unit does not. Additional buyer's stamp duty of 60 percent applies to a foreigner's residential purchase on or after 27 April 2023, with a published free-trade remission for some nationalities.

Official sources

Full method and the matrix: Foreign and non-resident buyer rules.