Tight vacancy and limited supply will support the city’s office rental momentum.

Tokyo Office Supply Set to Tighten Further as New Completions Fall Below 2025 Levels

Tokyo office vacancy rates are holding near multi-year lows, and new supply entering the market in 2026 is projected to drop below 2025 completion volumes — a structural dynamic that analysts say will continue to underpin rental growth across the Japanese capital's Grade A office corridors. With Grade A rents in central Tokyo already firming across key submarkets, the supply-demand equation is increasingly tilting in favour of landlords, making Tokyo one of the more compelling office investment stories in Asia-Pacific heading into the second half of the decade.

• Tokyo Grade A office vacancy rate: Approximately 3–4% across central business districts
• Projected 2026 new supply: Below 2025 completion levels
• Average Grade A rent movement: Positive YoY across core Tokyo submarkets
• Key submarkets: Marunouchi, Shinjuku, Shibuya, Minato

Why Supply Is Shrinking and What It Signals

The anticipated dip in new office completions in 2026 reflects a broader slowdown in development pipeline activity that began during the pandemic years, when construction financing tightened and pre-commitment requirements became harder to meet. Developers who paused or restructured projects during 2020–2022 are only now seeing those decisions translate into a thinner delivery schedule for 2026. This is not a Tokyo-specific phenomenon — similar pipeline contractions have been observed in Singapore and Seoul — but Tokyo's scale and the concentration of multinational occupier demand make the supply shortfall particularly meaningful for investors.

The vacancy rate across Tokyo's five central wards has remained structurally low, with premium buildings in Marunouchi and Otemachi reporting occupancy levels that leave little room for new tenant absorption without rental escalation. Existing tenants renewing leases are increasingly doing so at higher rates, while new entrants to the market — particularly technology firms and financial services companies expanding their Japan footprint — face limited options at the quality end of the spectrum. This compression of available stock is a key driver of the rental momentum analysts are projecting through 2026 and into 2027.

Market Context: How Tokyo Compares Regionally

Across Asia-Pacific, office markets are at varying stages of recovery. Singapore's CBD Grade A vacancy has also tightened following a period of elevated completions, while Sydney and Melbourne continue to work through post-pandemic occupancy adjustments. Tokyo stands out because its vacancy compression is occurring against a backdrop of genuine occupier demand rather than simply a lack of new buildings. Corporate Japan's return-to-office rates have been among the highest in the region, with major employers maintaining five-day in-office expectations that sustain consistent space utilisation and underpin net absorption figures.

Foreign institutional investors have taken note. Japanese real estate investment trusts — J-REITs — with significant office exposure have seen renewed interest from overseas capital allocators seeking stable, yen-denominated income streams, particularly as the Bank of Japan's gradual policy normalisation has begun to shift the currency and yield calculus. Office-focused J-REITs have reported stable distribution yields in the 3.5–4.5% range, which, combined with anticipated rental uplifts, present a credible total return case for long-term holders.

What This Means for Office Investors in Tokyo

For investors evaluating Tokyo office assets, the 2026 supply outlook reinforces a window of opportunity that may be narrowing. Assets acquired now — particularly value-add plays in secondary CBD locations with near-term lease expiry profiles — stand to benefit from both rental reversion and yield compression as the market tightens further. The most competitive bidding is expected to remain concentrated around Marunouchi, Shinjuku, and the emerging Shibuya tech corridor, where occupier demand from domestic and international technology companies continues to outpace available supply.

Investors should also factor in currency considerations. A strengthening yen scenario, which some analysts project as the Bank of Japan continues its policy adjustment, would enhance yen-denominated returns when translated back into US dollars or Singapore dollars. The combination of tight vacancy, limited new supply, and a potentially appreciating currency makes Tokyo office one of the more defensible institutional real estate positions in Asia-Pacific for the 2025–2027 investment horizon. Due diligence on specific assets should focus on lease expiry schedules, tenant covenant quality, and proximity to transit infrastructure — all of which remain primary value drivers in the Tokyo market.

Frequently Asked Questions

Why is Tokyo office supply expected to fall below 2025 levels in 2026?

The reduction reflects a delayed impact of slower development activity during the pandemic years, when financing constraints and weaker pre-commitment demand caused developers to pause or restructure projects. Those decisions are now materialising as a thinner pipeline of completions in 2026.

What is the current vacancy rate for Grade A offices in central Tokyo?

Vacancy across Tokyo's central business districts is estimated at approximately 3–4% for Grade A stock, reflecting sustained occupier demand and limited new supply entering the market.

How does Tokyo's office market compare to other Asia-Pacific cities?

Tokyo stands out for combining low vacancy with strong physical occupancy — Japanese firms have maintained high return-to-office rates. Singapore has also seen tightening, while Sydney and Melbourne are still absorbing post-pandemic supply. Tokyo's fundamentals are among the most landlord-favourable in the region.

What yields are Tokyo office assets currently generating?

Office-focused J-REITs are reporting distribution yields in the 3.5–4.5% range. Direct asset yields vary by grade and location, but prime CBD assets typically trade at tighter yields given their scarcity and institutional demand.

Is currency risk a concern for foreign investors in Tokyo office?

Currency is a key variable. If the Bank of Japan continues policy normalisation and the yen strengthens, foreign investors holding yen-denominated assets could benefit from enhanced returns when converting back to their home currency. However, yen volatility remains a risk that investors should hedge or account for in their return modelling.