HDB developments are typically around 30 to 40 storeys tall, and it's been that way for the longest time. But then, Pinnacle@Duxton came out with 50 storeys, and so did Alexandra Vale. Now, we might get an even taller project, to tackle land constraints and boost supply.

So could this be the norm for future projects? Will all new HDB blocks be taller, or is this case an exception?

Recently, HDB and the Ministry of National Development (MND) announced that an upcoming BTO project at Pearl's Hill is set to exceed 60 storeys, which will make it the tallest HDB development. Minister Chee Hong Tat stated that this is part of a broader strategy to intensify land use and "build taller where possible".

Right now, most of the tallest HDB blocks are around 40-storeys tall, which already seems like a lot. But, as Mr Chee stated in his speech, 60-storey blocks can yield about 50% more units. This means that it can significantly increase supply without expanding land use. This can be especially beneficial in maximising land use in the central areas that are already densely built up.

For context, the Pearl's Hill project will offer around 1,700 2-room flexi, 3-room and 4-room flats, as well as over 140 public rental flats.

Of course, a major consideration is being able to create more homes without using more land, as we've covered. But beyond supply, there are also other upsides when it comes to height.

In Singapore, higher-floor units are perceived as more desirable. You've got better views, more wind, and less noise, and more privacy since you're further away from ground-level activity. Some buyers also associate higher floors with long-term value. Combined with the fact that many of these taller developments are being introduced in central areas, super-tall developments could potentially have stronger resale appeal.

At the same time, this could reshape the traditional idea that higher floors are more expensive. If there are more high-floor units available, the premium between mid- and high-floor units may become less pronounced. This gives buyers the opportunity to seize higher-floor units at a more accessible price point.

But of course, building taller isn't as simple as stacking more floors on top of each other. In reality, there are several constraints that restrict how high HDB developments can go.

First, regulatory limits. Height is tightly controlled by agencies like the Urban Redevelopment Authority (URA) and the Civil Aviation Authority of Singapore (CAAS). Allowable building heights depend on factors such as Gross Plot Ratio (GPR) and how a development fits within its surrounding area. On top of that, flight paths and aviation safety requirements can impose strict caps in certain locations, particularly closer to the city.

Second, engineering complexity. Structural reinforcement becomes critical at greater heights. So that means the development would require thicker materials, deeper foundations, and more advanced engineering. Evacuation plans and fire safety systems also have to be much more sophisticated, because it takes longer for people to exit from higher floors.

Third, cost escalation. Taller buildings are significantly more expensive to build and maintain. More lifts are needed to service additional floors, yet even with increased capacity, residents may still face longer waiting times during busy hours. Maintenance costs also rise over time due to the increased complexity of building systems.

All these contribute to a higher overall project cost. And given that many of these taller developments are located in central areas, they are likely to fall under the Prime or Plus categories. Flats under these schemes typically come with less generous subsidies and a longer minimum occupation period of ten years, compared to the usual five. Taken together, this can affect both affordability and future flexibility.

This is especially relevant for those who rely on shorter holding periods to upgrade, as the longer MOP and tighter ownership conditions can limit how quickly you can move on to the next property.

Probably not. At least not all of them.

While the upcoming 60-storey BTO project at Pearl's Hill is a big step, it's unlikely that every HDB launch will follow suit. The reality is: building that high isn't something that can be easily applied everywhere.

For one, there are real constraints on how tall buildings can go. As mentioned earlier, height limits depend on planning guidelines set by URA and other related agencies. Not every location can realistically support such a high-rise development.

Then there's the issue of cost and practicality. Super-tall buildings are significantly more expensive to construct and maintain. They require more complex engineering, more lifts, and more advanced safety systems. That might make sense in prime, central locations where land is scarce and demand is high. But it's much harder to justify in, let's say, in the Outside Central Region (OCR), where land pressure isn't as intense.

So we might still see more super-tall projects, but they might be more common in central and city-fringe locations, or places with fewer height restrictions. But across most estates, the 30-40 storey range will probably remain the norm, at least for now.

The future of HDB housing may not be uniformly taller, but it will be more varied. Factors like height and design will increasingly shape not just how people live, but how their property performs over time. For buyers, understanding how these structural shifts affect long-term value and flexibility will be important when planning your next move.