I earn $50k pa, my wife $45k pa. We are both 46 years old.
Luckily our 3 room flat is fully paid and because it is in the central region, it is worth $500k.
We hope to sell the flat at $700k when we retire at 75 years old. We can then buy a new HDB studio unit for $70k. We can then use the balance of money for our retirement.