Four Singapore real estate investment trusts (S-REITs) with links to Temasek Holdings are set to pay out income to their unitholders in the coming days.

Temasek, a global investment firm headquartered in Singapore, owns 100% of Mapletree Investments and a 21% stake in Keppel Corporation (SGX: BN4) as of 31 March 2026.

Keppel REIT (SGX: K71U) will make its payout on 15 September.

Mapletree Pan Asia Commercial Trust (SGX: N2IU), or MPACT, and Mapletree Logistics Trust (SGX: M44U), or MLT, are scheduled to distribute on 16 September.

Keppel DC REIT (SGX: AJBU) rounds out the week with a payment on 18 September.

Beyond these immediate payouts, a critical question looms for investors: how sustainable are these distributions over time?

Is Keppel DC REIT's double-digit DPU growth built to last?

Keppel DC REIT manages a portfolio of 25 data centres spread across 10 countries, with total assets under management (AUM) of roughly S$6.3 billion.

In 1H2026, gross revenue climbed 14.5% year on year (YoY) to S$242 million, while net property income (NPI) increased 15.1% to S$210.4 million.

Distributable income jumped 18.5% YoY to S$150.7 million, enabling distribution per unit (DPU) to rise 11.3% to S$0.05714.

Growth was driven by positive rental reversions of 10% and contributions from the Tokyo Data Centre 3 acquisition.

Additionally, the REIT boosted its effective interest in Keppel DC Singapore 3 and 4 to 100% in February 2026.

Partially offsetting these gains were the divestment of the Kelsterbach Data Centre and elevated finance costs.

Portfolio occupancy slipped to 92.5% as of 30 June 2026 from 95.6% in the prior quarter, following the expiration of the Cardiff Data Centre contract.

Excluding Cardiff, occupancy would have stayed stable at 95.3%.

Aggregate leverage remains comfortable at 34.0%, underpinned by a low cost of debt of 2.6%.

Why did Keppel REIT's DPU drop even as income grew 22.8%?

Keppel REIT owns 14 prime commercial properties across Singapore, Australia, South Korea, and Japan, with AUM totalling S$11.8 billion.

For 1H2026, property income rose 16.7% YoY to S$159.3 million, with NPI growing 13.1% to S$122.5 million.

Distributable income saw robust growth, increasing 22.8% to S$129.6 million.

Yet DPU declined 4.0% to S$0.0261.

The growth in the unit base from recent acquisitions diluted the per-unit payout.

Operationally, a 75% interest in Top Ryde City Shopping Centre and an additional one-third stake in Marina Bay Financial Centre Tower 3 drove income gains, with lower borrowing costs also providing support.

Portfolio committed occupancy stands at 96%, with positive rental reversion at 12.8%.

The REIT continues to recycle capital, currently divesting KR Ginza II in Tokyo at a 28.4% premium to its 2022 purchase price.

Aggregate leverage ended the period at 40.0%, with a cost of debt of 3.27%.

Is MLT's modest DPU increase a red flag?

MLT holds 175 logistics properties across nine Asia-Pacific markets, representing AUM of S$13.1 billion.

For 1QFY2027, gross revenue rose 0.8% YoY to S$178.9 million, while NPI grew 2.0% to S$156.4 million.

DPU edged up just 0.2% YoY to S$0.01816.

Foreign exchange headwinds from a weaker Japanese yen, Korean won, and Hong Kong dollar weighed on the reported figures.

Excluding currency effects, gross revenue and NPI would have grown 2.0% and 3.1%, respectively.

A newly acquired Grade A warehouse in Mumbai and the first full quarter of contribution from Mapletree Joo Koon Logistics Hub supported the top line.

Borrowing costs also provided relief, falling 2.7% YoY to S$38.3 million.

Portfolio occupancy reached 96.4%, with positive rental reversion at 0.9%, or 2.3% when excluding China.

After the quarter, MLT announced divestments of approximately S$155 million, including a Singapore property sold at a 20.3% premium to valuation.

Aggregate leverage stood at 40.5%, with an average borrowing cost of 2.6%.

What is behind MPACT's falling DPU?

MPACT owns 15 commercial properties across Singapore, Hong Kong, China, Japan, and South Korea, with AUM of S$15.2 billion.

For 1QFY2027, gross revenue declined 5.6% YoY to S$206.5 million, while NPI fell 6.8% to S$154.8 million.

DPU dipped 2.5% YoY to S$0.0196, although an 18.4% drop in finance expenses helped cushion the impact.

VivoCity remains the portfolio's key anchor, delivering an 8.9% YoY increase in NPI following the completion of its Basement 2 asset enhancement.

Tenant sales at the mall rose 4.9% to S$266.8 million.

However, prior-year divestments removed baseline income, while a stronger Singapore dollar and transitional vacancies at Mapletree Business City added to the top-line drag.

Portfolio occupancy fell to 84.4% from 89.3% a year earlier, dragged down by weakness in Japan (56.0%) and China (82.4%).

Rental reversion remained positive overall at 4.3%, even as Festival Walk and China assets posted negative reversions.

Management used divestment proceeds to reduce debt, bringing aggregate leverage to 37.7% with a cost of debt of 2.94%.

Think deeper: Look past the DPU headline

While DPU is the exact figure that reaches a unitholder's account, total distributable income offers the clearest indication of where future payouts are headed.

Keppel REIT's distributable income grew 22.8% YoY even as its DPU fell 4.0%, illustrating how unit dilution from acquisitions can temporarily mask operational momentum.

In contrast, Keppel DC REIT's 18.5% distributable income growth translated directly into an 11.3% DPU increase.

Ultimately, a single distribution period offers only a snapshot rather than a final verdict.

Examining broader underlying metrics - occupancy trends, rental reversions, total distributable income growth, and overall debt costs - reveals far more about whether a REIT's payouts can remain sustainable over the long term.

Imagine receiving steady rent increases for more than two decades. It sounds unusual, but one healthcare REIT already has rental escalations locked in until around 2042. Income visibility like this is hard to find today.