There is no official statement from ICA stating a maximum age limit to apply for Singapore citizenship.
Posts relating to Singapore citizenship applications.
You have to be a Singapore PR for at least two years to become eligible to apply for Citizenship.
My husband was a Singaporean citizen who died in 2001. I have two children aged 27 and 30. Is there a chance that they can apply for Singapore Citizenship?
The Singapore government grants Citizenship to the children of Singapore citizens in three different ways. Citizenship by birth – if the child was born in Singapore and at least one of the parent was Singapore Citizen at the time of birth of the child Citizenship by descent – if the child was born outside Singapore…