3Gen flats are designed for extended families; they’re bigger, but come with a tough restriction: you’re only going to be able to sell back to other extended families. As we write this, it’s been roughly a decade since 3Gen flats were first introduced. Now’s a good time to ask the question: has the drawback really been a big deal after all? And given the spaciousness, are they a better pick over executive flats? 

The challenge for many buyers today isn't access to information.

It's interpreting that information in a way that makes sense for their finances, goals, and stage of life.

Over time, that's also why we decided to work with agents who shared the same data-driven and advisory-led approach behind our editorial, consultants who could help readers think through decisions more objectively, rather than simply push transactions.

Today, the team has worked with more than 2,000 clients across over $5B in property transactions.

See how the consultation works →

The rundown on 3Gen flats

3Gen flats were built for multi-family living, such as children living with their parents. These flats were first introduced in 2013. At the time, a common belief was that these flats were purely for home ownership and not resale gain.

3Gen HDB

That’s because 3Gen flats can only be sold to other multi-generational homeowners. Prospective buyers must be families with at least one Singapore citizen and two or more generations living together (e.g., married couple living with parents, and parents with at least one child - that’s inclusive of single parents). This is on top of other usual eligibility requirements. 

Note that the parents must be registered as occupiers. Registered occupiers can’t own another residential property, so that means the parent can’t own a condo unit, another flat, etc.

This has led to a lot of warnings about limited resale potential; some realtors will tell you to avoid 3Gen flats if you have any thoughts of upgrading. They’re not entirely wrong, as the added resale restriction means there’s a smaller prospective pool of buyers.

Why not just get an executive flat?

Let’s start with size, where we found something puzzling: our observed transactions (see below) contradict common sources of information. Online searches, as well as realtors, claimed 3Gen flats range between 1,237 to 1,400 sq. ft., whereas most executive flats are between 1,292 sq. ft. to over 1,610 sq. ft. 

This would suggest executive flats are generally bigger, a fact that we did not observe in the transactions below. 

Nonetheless, some details are clear: 

First, executive flats still use floor plans with three bedrooms and two bathrooms, much like regular 5-room flats. A 3Gen flat, on the other hand, will still incorporate an additional master bedroom and bathroom (the added bathroom is an en-suite for the second master bedroom). 

Barring a few DBSS projects, jumbo flats, and maisonettes, 3Gen flats are the only HDB flat type with three bathrooms. 

Availability and efficiency are two other key factors. 

Some realtors pointed out that executive flats are no longer built, and the latest ones you can find date back to 1995 - none were built after that. 3Gen flats are still being built, so you do have a chance of getting one as a BTO flat. This matters to buyers who care about lease decay, and who don’t want to pay the high COV rates common to 2024. 

That said, we observed from the transactions below that most resale 3Gen flats are about the same age as their executive counterparts. That’s not too surprising though, as these are usually bought as long-term homes. 

The older executive flat layouts also tend to be less efficient, with more wasted hallway space. The latest 3Gen BTO flats are more likely to use newer layouts; some are quite “dumbbell” like, with the two master bedrooms on either end of the unit, connected via the living/dining area instead of a hallway. 

So whilst 3Gen flats might be harder to resell, they may be more efficient, and may still be available as BTO flats (if you’re lucky with the ballot). 

How are resale gains compared to Executive HDB flats?

The following shows the gains of 3Gen flats compared to executive flats, between 1992 to 2024. Note that there were just three towns with 3Gen flats:

YearBISHANTAMPINESYISHUNVolume
1992$292,667$231,667$213,24422
1993$349,083$287,750$270,88550
1994$462,375$386,455$377,88937
1995$545,000$475,000$469,35827
1996$682,167$601,563$591,25046
1997$696,000$575,700$583,89537
1998$588,698$485,714$499,18830
1999$533,667$436,444$445,76928
2000$535,500$514,000$455,71420
2001$490,000$503,167$437,14423
2002$530,000$411,450$428,2507
2003$533,500$421,667$406,28612
2004$507,500$423,000$407,25012
2005$488,000$445,000$391,6675
2006$493,333$350,000$378,12513
2007$410,000$441,375$387,09121
2008$660,000$490,000$454,77815
2009$620,000$528,000$493,5719
2010$690,333$492,000$605,48612
2011$780,000$640,000$666,25010
2012$877,000$771,250$702,66712
2013$855,000$731,9787
2014$702,0003
2015$805,0001
2016$818,000$691,0004
2017$910,000$830,000$697,5004
2018$849,333$769,43215
2019$915,972$845,000$764,34714
2020$940,000$742,500$752,0008
2021$895,200$764,375$836,60018
2022$820,722$902,06312
2023$996,6673
2024$980,000$1,044,000$1,075,3336
ROI (1994 - 24)2.5%4.2%3.9%
ROI (2004 - 24)3.3%6.7%5.9%
ROI (2019 - 24)1.4%7.3%8.9%
The total volume of flats transacted during this time is 543 units

Here's how Executive flats performed in these same HDBs:

YearBISHANTAMPINESYISHUNVolume
1992$271,000$204,961$191,801216
1993$346,455$304,712$284,052515
1994$439,557$380,968$358,813666
1995$554,339$457,922$440,738627
1996$663,256$602,566$560,171737
1997$658,005$586,533$545,118589
1998$565,846$497,293$455,6821005
1999$533,213$465,710$418,8071278
2000$562,356$513,080$430,501436
2001$536,403$481,935$398,045634
2002$522,821$452,013$369,654477
2003$496,685$428,957$364,568282
2004$466,845$402,281$348,537273
2005$434,229$378,372$336,892308
2006$428,151$373,657$328,756364
2007$496,876$405,993$341,523404
2008$592,512$487,082$387,122340
2009$597,313$491,496$423,934363
2010$677,747$540,129$477,989461
2011$746,175$610,486$534,698260
2012$838,654$665,815$600,182286
2013$857,856$698,285$622,596195
2014$860,512$682,807$581,600169
2015$883,225$673,990$600,589201
2016$885,676$672,735$589,501212
2017$905,026$662,850$589,592259
2018$910,042$685,669$581,155298
2019$883,344$677,849$567,527254
2020$891,591$689,166$599,154314
2021$963,708$733,143$669,486420
2022$1,046,216$830,908$787,355348
2023$1,088,284$870,442$823,621226
2024$1,245,423$910,516$859,990255
ROI (1994 - 24)3.5%2.9%3.0%
ROI (2004 - 24)5.0%4.2%4.6%
ROI (2019 - 24)7.1%6.1%8.7%
The total volume of flats transacted during this time is 13,672 units

Unfortunately, the low transaction volume makes it tough to conclude

3Gen flat transactions are rare. Since 2008, there were usually fewer than 20 transactions across the three estates we monitored. Buyers of 3Gen flats are often told to buy it as a long-term family home (perhaps even for life), so it’s not surprising that the transaction volume is low.

But we do note two interesting things:

First, the 3Gen flats that were transacted were bigger than their executive counterparts. Perhaps it’s a quirk of age: older flats tended to be bigger, so maybe if the transactions involved more recent 3Gen flats, they’d lose out in size to their executive counterparts. 

Regardless, buyers in the market for resale 3Gen/executive flats shouldn’t assume the former are always smaller than the latter. 

Second, taking what we can from limited transactions, the return is not substantially worse than executive flats. In fact, it’s quite often better: Between 2004 to 2024, during which time 3Gen flats saw a notably higher ROI of 5.9 per cent. Between 2019 to 2024, however, there was virtually no difference in gains.

Finally, note that on the resale market, a lot of the 3Gen flats weren’t much newer than their executive counterparts; they both tended to have 62 to 65 years remaining. This age disparity is bound to widen at some point though, simply because construction of executive flats stopped in 1995, while new 3Gen flats are still being built.

The concern for 3Gen flats may have been overblown

Again, it’s tough to draw an absolute conclusion due to the low transaction volume; but the market may have an exaggerated notion of how “bad” 3Gen flats are for resale. They may take a bit longer to sell, or have a more limited pool of buyers; but so far, performance hasn’t been too divergent from resale executive flats. 

While it’s still definitely an own-stay asset (as some might argue all HDB flats ought to be), it’s not going to ruin your chances at upgrading either. 

At Stacked, we like to look beyond the headlines and surface-level numbers, and focus on how things play out in the real world.

If you'd like to discuss how this applies to your own circumstances, you can reach out for a one-to-one consultation here.

And if you simply have a question or want to share a thought, feel free to write to us at stories@stackedhomes.com. We read every message.