What if the most undervalued 4-bedders in Singapore are in the North—and they’re disappearing fast?   Melvin Lim from PropertyLimBrothers spotlights key districts like Sembawang and Yishun, where a $1.6M entry into resale ECs and condos under 15 years old may offer significant upside. With a current PSF gap of nearly $900 between resale and upcoming TOP condos, the data points to a narrowing window for buyers with a sub-$2 million budget.   Melvin contrasts the return on capital from North-side resale units with higher-quantum alternatives, showing how strategic entry timing and quantum size can lead to stronger ROI. As new launches edge toward $2,400 PSF, this widening resale-to-new gap could make current listings in the North increasingly hard to come by.   If you're eyeing the North for long-term upside or searching for low-quantum, high-yield options in Q4 2025, this episode is one to take notes on.