That would have to depend on the reason for your purchase. Depending on your needs, there will be different routes that you can take.
I did write an article about this, do feel free to take a look at it at the following link.
Huttons Asia Pte Ltd
If you are looking to invest in a 1BR unit, do reach out to me, I am marketing an upcoming launch at Punggol Central.
M: (65) 9851-5470