Key Takeaways
- • Majority of alternative investors pay premium rents: 56% of hedge funds and 54% of private equity firms in London pay above-prime rents, compared to only 37% of typical London occupiers, according to CBRE's Tenant Advisory Group analysis.
- • Private equity firms face steeper premiums: PE firms pay 24% above prime rents on average, significantly higher than the 20% premium paid by typical London occupiers and the 9% premium for hedge funds.
- • Alternative investors demand more space per employee: Hedge funds occupy a median 218 sq ft per headcount and private equity firms 242 sq ft per headcount, compared to 120-200 sq ft for typical financial services firms, driving higher overall occupancy costs.
- • Lease terms extending to reflect long-term commitment: Private equity firms average 12-year lease terms while hedge funds average 10 years, with an increasing number of 15-year deals reflecting a strategic shift toward securing premium, long-term office space despite rising costs.
- • Prime office rents rising sharply across London: CBRE's European prime office rent index rose 5.8% year-over-year, with London experiencing annual growth rates as high as 13% over the past three years and prime headline rents in the City and Southbank reaching approximately £91 per square foot by end-2025.
Summary
London's alternative investment sector is locking in longer lease commitments at elevated rental costs as prime office space becomes increasingly scarce and expensive. New analysis from CBRE's Tenant Advisory Group reveals a pronounced divergence between hedge funds and private equity firms in their London office strategies, with both sectors paying substantially above market rents compared to broader London occupiers.
The rental premium differential is particularly acute for private equity firms, which pay an average of 24% above prime rents—significantly outpacing the 20% premium paid by typical London occupiers and the 9% premium incurred by hedge funds. More broadly, 56% of hedge funds and 54% of private equity firms pay above-prime rents, compared to only 37% of the typical London occupier, highlighting the concentration of premium space absorption within the alternative investment community.
Space utilization patterns further explain the elevated cost burden. Hedge funds require a median 218 sq ft per employee and private equity firms 242 sq ft per headcount, substantially exceeding the 120-200 sq ft standard for financial services firms. This elevated occupational density reflects the specialized requirements of alternative investment operations, including dedicated trading floors, secure meeting facilities, and technology infrastructure.
Lease structuring reveals a strategic shift toward long-term occupancy commitments. Private equity firms are averaging 12-year lease terms while hedge funds sign for 10 years, with a growing number of both sectors entering 15-year agreements. This extended commitment horizon reflects a deliberate strategy to secure best-in-class office space and lock in occupancy costs amid sustained rental appreciation. Prime headline rents in London's City and Southbank submarkets reached approximately £91 per square foot by end-2025, representing a 5% year-on-year increase, while CBRE's broader European prime office rent index rose 5.8% annually. London has experienced particularly acute rental growth, with average rents increasing over 10% per annum for the past three years and reaching growth rates as high as 13% in certain periods.
The rental premium differential is particularly acute for private equity firms, which pay an average of 24% above prime rents—significantly outpacing the 20% premium paid by typical London occupiers and the 9% premium incurred by hedge funds. More broadly, 56% of hedge funds and 54% of private equity firms pay above-prime rents, compared to only 37% of the typical London occupier, highlighting the concentration of premium space absorption within the alternative investment community.
Space utilization patterns further explain the elevated cost burden. Hedge funds require a median 218 sq ft per employee and private equity firms 242 sq ft per headcount, substantially exceeding the 120-200 sq ft standard for financial services firms. This elevated occupational density reflects the specialized requirements of alternative investment operations, including dedicated trading floors, secure meeting facilities, and technology infrastructure.
Lease structuring reveals a strategic shift toward long-term occupancy commitments. Private equity firms are averaging 12-year lease terms while hedge funds sign for 10 years, with a growing number of both sectors entering 15-year agreements. This extended commitment horizon reflects a deliberate strategy to secure best-in-class office space and lock in occupancy costs amid sustained rental appreciation. Prime headline rents in London's City and Southbank submarkets reached approximately £91 per square foot by end-2025, representing a 5% year-on-year increase, while CBRE's broader European prime office rent index rose 5.8% annually. London has experienced particularly acute rental growth, with average rents increasing over 10% per annum for the past three years and reaching growth rates as high as 13% in certain periods.
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