As a single person with limited earnings/savings, should I BTO a 2-room flat by 35 and upgrade to a resale after the MOP, or save up and buy a resale when I'm even older?

I want to check I want to check how to apply about BTO 2single house this is my first time

I would say get the BTO and focus on saving up and investing for retirement.

Top up your CPF and pay with cash for the BTO if possible.

This would be the more secure path. you can always plan for an upgrade later when you earn more or maybe have a change in your status.

As a Singaporean, we should make use of our privileges. As long as you're able to stay in Singapore for 5 years during the Minimum Occupation period, you should get a BTO. if you're not planning to stay in Singapore you could rent it out while you're in overseas. When you retire, you could sell it off and make it part of your retirement fund.

This is what alot of Malaysian PRs are doing. It also works for them because their country has a lower cost of living than Singapore.

It's a tough question. I presume you have no intention to stay in a 2-room flat in the long term?

BTO is a discount, so it will definitely ease your cash/CPF. Have you checked if this discount for 2-room flats is significant (versus 2-room flats in the resale market)? Have you also checked the demand trend for 2-room resale flats? I am not sure how easy it will be for you to sell. And in another 5 years, the trend may change for the better/worse...

Also, if you BTO, it will be at least another 10 years (more like 10 + number of years to BTO completion) before you move into your dream home... Still, the discount can be tempting...

Last but not least, do take into account renovation/furnishing costs. Can't really imagine keeping own home empty/unfurnished for 5 years...