Why invest in office real estate?

Office real estate has a long track record as a core holding in institutional investment portfolios. Three characteristics distinguish it from residential property and most other asset classes. Leases run longer, rent growth is commonly contractual rather than discretionary, and returns are anchored in the performance of the physical asset rather than equity market sentiment.

The Australian office market is showing signs of recovery. According to Knight Frank’s Australian Office Indicators Q4 2025,1 CBD net absorption reached 135,279 sqm across the year, the strongest annual result since 2022. Prime rents are grew in major capital cities, and a reduced development pipeline may tighten vacancy conditions into 2026. For investors assessing the sector, the structural case and the cyclical timing are both worth understanding.

Office leases provide stable, contractually growing income

Office leases are typically structured over terms of 3 to 15 years, providing a degree of income stability that residential tenancies rarely match.

Tenants commit to longer arrangements partly because the cost of fitting out and relocating an office is substantial; that friction can encourage lease renewals and may reduce vacancy risk for building owners.

Most commercial office leases include built-in rent review mechanisms. These are commonly structured as fixed annual increases, consumer price index adjustments, or market reviews at set intervals. The practical effect is that rental income tends to grow over the life of a lease.
Lease structures in commercial office property also frequently require tenants to meet outgoings such as building insurance, rates and property management costs directly. This can reduce the net cost burden on the owner and may improve the reliability of rental income.

Office property supports a diversified portfolio

Commercial property, including office real estate, behaves differently to equities and fixed income over investment cycles. Returns are driven by lease income and property valuations rather than share market sentiment, which means office assets can provide a measure of diversification within a broader portfolio.

The income component of office returns tends to be relatively stable, derived from contracted rents rather than earnings forecasts or dividend decisions. Capital returns are influenced by property valuations, which move on longer cycles than listed markets and are anchored by the physical characteristics of the asset: its location, quality, tenant profile and lease structure.

For investors who hold a mix of growth and income assets, allocating a portion of a portfolio to commercial property can help reduce overall return volatility. Office real estate accessed through unlisted funds or listed trusts allows this exposure without the concentration risk of owning a single building directly although investors should consider liquidity, valuation and product-specific risks.

Australian office market conditions are improving

The Australian office market has moved through a period of correction following the disruption of 2020 to 2022, and the data through 2025 indicates signs of recovery in some markets rather than ongoing decline.

Knight Frank’s Q4 2025 research1 shows every capital city recorded positive net absorption across the year. Adelaide and Brisbane led prime rent growth at over 11% annual effective rent growth, while Sydney and Melbourne gained momentum in the second half of the year.

The development pipeline across most markets has thinned considerably, with limited new supply expected through 2026 and into 2027. When leasing demand is recovering and new supply is constrained, vacancy rates tend to tighten and rental conditions improve.

The KPMG/MSCI/PCA data2 reinforces this trajectory. Office total returns turned positive from the June quarter 2025, reaching 4.4% by the September quarter. Brisbane CBD led at 6.8%, while Sydney CBD improved by 9 percentage points across the year.

The flight-to-quality dynamic is also worth noting. Tenant demand is concentrating in well-located, prime buildings with plenty of amenities. Occupiers may be prepared to pay more for space that supports flexible working arrangements, provides strong connectivity, and sits within reach of public transport.

This divergence between prime and secondary stock is sharpening, and it has direct implications for which office assets are likely to perform well and which face continued pressure.

What makes one office investment stronger than another?

Not all office assets perform equally, and understanding the factors that distinguish stronger investments from weaker ones is central to assessing the sector.

Location remains the primary determinant

Buildings within or near established CBD precincts with good transport access and amenity generally attract stronger tenant demand and command higher rents. Infrastructure investment in a given corridor is worth monitoring as a potential indicator of where tenant demand is heading.

Building grade matters

Prime and A-grade assets attract tenants with stronger financial covenants and longer lease commitments. Secondary or B-grade buildings in less central locations may be more exposed to vacancy when market conditions soften.

Close link between lease structure and tenant quality

A long weighted average lease expiry (WALE), combined with tenants of strong financial standing, provides income visibility and reduces the risk of sudden vacancy.

Capital expenditure requirements

Older buildings may require significant investment to meet tenant expectations around fitout, energy efficiency, and building management systems. These costs affect net returns and should be factored into any investment assessment.

The case for investing in office real estate

Office real estate offers income and diversification characteristics that have made it a consistent part of institutional portfolios over time. Longer leases, contractual rent growth, and returns anchored in physical asset performance distinguish the sector from residential property and from listed equities.

The Australian market is showing recovery momentum, with improving net absorption, constrained supply, and positive total returns across major CBD markets. The current conditions do not guarantee performance. Location, grade, tenant mix, and lease structure remain stronger predictors of long-term returns than sector-level trends alone.

Sources
1. Knight Frank, Australian Office Indicators Q4 2025. 

2. Property Council of Australia/MSCI Australia Annual Property Index, via KPMG, Commercial Property Market Update, December 2025.