Recently two of my senior colleagues applied for bank housing loans. Both of them were near retirement age, roughly around 53 - 55 years. Both told me they got their loans approved up to 70 years of age. However, talking to both of them gave some insight into how they got their loans approved. Colleague A was quite well to do while colleague B wasn't.
Colleague A got his loan approved from a local bank while colleague B had to submit to many banks before one of the banks approved his loan. Apparently even though banks can lend you up to 70 years of age, this is not a guaranteed, all the local banks rejected colleague B's application, colleague B told me he finally got his loan approved from a Singapore bank. Colleague A managed to easily get this loan approved because he had shown the bank that he had cashflow (from rental) and assets (real estate)
This lesson clearly illustrates 2 things. Firstly, if you are young, your most valuable asset you have is time, so do not be afraid of taking up long tenure loans as this is the age where banks are more willing to lend out money. Secondly, to start young building up your assets and cashflow as you will need it in future just like colleague A's case.