Two months of ranking Singapore's rental yields shows why higher rent doesn't mean higher returns, why smaller units usually win, and why even top yielding condos still needed a monthly top-up. Citing rental yields commonly shows up in property listings, real estate agent pitches, and even in the marketing materials of some new launch projects. It’s almost always a number that attempts to convince a buyer whether that property is worth buying to rent. The appeal of using rental yields as a marketing tool is pretty straightforward, since it’s a useful way to compare the potential performance across different projects. From a buyer’s perspective, a bigger number tends to look more convincing than a smaller one. So, we spent the past two months testing how much rental yields explain the performance of a project. Across nine Stacked Pro articles, we ranked condos islandwide, then by age, then by holding costs, then district by district, and...