Why Property Valuations Matter for S&P/ASX 200 Real Estate Groups Dexus (ASX:DXS) and GPT (ASX:GPT)

What happens to a property group's Book Value when valuers stop marking buildings down? Dexus (ASX:DXS) and The GPT Group (ASX:GPT) have both just answered that question in their 2026 results, and the answer is: modest gains, not a rebound.

After several years of rising Capitalisation rates, both S&P/ASX 200 groups reported small valuation uplifts and higher net tangible assets. Valuations matter because they set each group's book equity, drive statutory profit and determine gearing. They also determine how much room each has to keep selling assets, co-investing and funding developments.

How a capitalisation rate moves book value

A capitalisation rate, or cap rate, is a property's Net Income divided by its value. When valuers raise the cap rate applied to the same rent, the value falls. Net tangible Assets (NTA) is book Equity per security after excluding intangibles, so it absorbs those movements directly.

Dexus said its FY26 statutory profit rose to A$482.2 million, from $136.1 million a year earlier, "primarily driven by Revaluation movements turning positive as a result of stabilising capitalisation rates". Its FY26 results, for the year to 30 June 2026, released on 20 August 2026, showed portfolio values up about 1.0 per cent on prior book values and NTA up 11 cents, or 1 per cent, to $8.92.

GPT reports on a calendar year. Its 2026 interim result, for the six months to 30 June 2026 and released on 17 August 2026, included a $45.0 million valuation uplift, or 0.3 per cent, within statutory profit of $400.1 million. Its results presentation shows NTA rising from $5.53 to $5.61 per security.

Different portfolios behind similar cap rates

The two groups own different mixes. Dexus's $15.3 billion portfolio holds $9.8 billion of office and $3.6 billion of industrial property, and office generates 57 per cent of earnings. It also manages $36.1 billion of third-party funds, taking its platform to $51.4 billion.

GPT's $12.4 billion of balance-sheet Investment property is spread across retail ($5.1 billion), office ($3.8 billion) and logistics ($3.5 billion). Its funds management Business oversees $41.6 billion of assets under management.

Where they overlap, valuers are using nearly identical assumptions:

Dexus's office cap rate was 6.18 per cent a year earlier and its industrial rate 5.56 per cent, so both edged slightly higher even as overall values rose. GPT's portfolio-wide weighted average cap rate was 5.76 per cent.

Our calculation: the same cap-rate shift, applied to both

To show how exposed each Balance Sheet is, we applied a hypothetical 0.25 percentage point rise in cap rates to each reported sector value, holding income constant. The value loss equals 0.25 divided by the new cap rate.

On that basis, Dexus's office and industrial assets would fall about 4.0 per cent, or roughly $530 million. GPT's three sectors would fall about 4.2 per cent, or roughly $520 million. GPT's higher sensitivity reflects its retail assets, which carry the lowest cap rate, since a given rate change moves low-yielding assets more.

This is illustrative only. It excludes Dexus's smaller sectors and GPT's interests held through funds, and ignores rent growth that could offset higher cap rates.

Earnings, gearing and funding

Dexus reported adjusted funds from operations (AFFO), a cash Earnings measure after maintenance capital and leasing costs, of 45.0 cents per security and paid distributions of 37.0 cents, an 82.1 per cent payout. It guided to FY27 AFFO of 37.5 to 39.5 cents, citing lower performance fees and trading profits after an elevated FY26, higher finance costs and completion of Atlassian Central. Distributions are guided at 37.0 cents.

Look-through gearing, meaning Debt relative to assets including its share of funds, was 33.4 per cent against a 30 to 40 per cent target. Dexus had 91 per cent of debt hedged during FY26 at 3.0 per cent, and has recommenced its securities buy-back after exceeding its divestment target. It exchanged or settled $1.9 billion of divestments in FY26, including properties at Baulkham Hills and Chester Hill, and booked $42.5 million of post-tax trading profits.

GPT's funds from operations (FFO), the sector's standard recurring earnings measure, rose 5.0 per cent to $338.8 million, or 17.7 cents per security, and declared an interim distribution of 12.25 cents against AFFO of $263.4 million. It expects about 35.4 cents of FFO for 2026, about 4 per cent growth, and a distribution of 24.5 cents. Net gearing was 31.5 per cent, Interest Cover was 4.0 times and the weighted average cost of debt was 5.0 per cent.

Occupancy is where the valuation story starts

Valuations follow income. Dexus lifted office occupancy to 95.7 per cent from 92.3 per cent, but like-for-like office income grew only 0.3 per cent. Industrial like-for-like income grew 8.3 per cent despite occupancy slipping to 94.6 per cent.

GPT reported 99.8 per cent retail occupancy, 98.9 per cent in logistics and 92.1 per cent in office, with specialty retail leasing spreads of 6.6 per cent. Incentives on its office deals, the rent-free periods and fit-out contributions offered to tenants, averaged 33 per cent, which weighs on effective rents. On 14 September it announced a $380 million Acquisition of 66 Eagle Street, Brisbane for its value-add partnership, subject to Foreign Investment Review Board approval, with financial close targeted for November 2026.

Risks that could reverse the gains

The uplifts are small, so modest changes in bond yields or office Demand could reverse them. Dexus is also reviewing funds holding $7.3 billion of third-party infrastructure assets that contribute about $35 million of management fees, with Options including restructuring or liquidation. Its $12.8 billion development pipeline adds delivery risk.

GPT's office occupancy is its weakest segment, and its hedging falls from an average 74 per cent of drawn debt in 2026 to 60 per cent in 2027, leaving more exposure to future rates.

Dates and indicators ahead

Dexus's 2026 Annual General Meeting is on 28 October 2026 in Sydney. GPT's next scheduled update is its full-year 2026 result. Both remained S&P/ASX 200 constituents in iShares IOZ holdings dated 24 September 2026.

The key indicators are December valuations, office cap-rate direction and like-for-like income growth, which show whether book values are being supported by rising rent.