Hi Stephanie Myint, thanks for writing to us on AskGuru.
Yes, a single PR can buy a condominium or an apartment in Singapore. However, you will be subjected to an Additional Buyer’s Stamp Duty (ABSD) as well as a Buyer’s Stamp Duty (BSD). For more information, please refer to IRAS’s link here: https://www.iras.gov.sg/irashome/Other-Taxes/Stamp-Duty-for-Property/Working-out-your-Stamp-Duty/Buying-or-Acquiring-Property/What-is-the-Duty-that-I-Need-to-Pay-as-a-Buyer-or-Transferee-of-Residential-Property/Additional-Buyer-s-Stamp-Duty--ABSD-/
You can also refer to our buying guide here: https://www.propertyguru.com.sg/property-guides/singapore-buy-property-guides
Hope this answers your question.