Investment into London offices reaches £9.47billion in 2025, driven by highly active December

Investment into London’s offices reached £9.47 billion in 2025, 52% ahead of the 2024 full year figure of £6.21 billion according to the latest figures from Colliers.

Investment in the fourth quarter saw the year end strongly, with £3.28 billion invested, the highest level since Q3 2022 (£3.9 billion) and marking only the third quarter since Q1 2022 in which levels have surpassed the 10-year average. December was a standout month with £1.8 billion being invested.

The largest single asset transaction in 2025 was the acquisition by owner occupier State Street Capital of 100 New Bridge Street, EC4 for £333 million. Other notable deals last year included Nuveen’s sale of 70 St Mary Axe EC3 (£331 million), Royal London’s purchase of 1 Newman Street W1 (£250 million) and Delancey’s acquisition of 11-12 Hanover Square W1 (£170 million).

Domestic investors accounted for the lion’s share of activity, reflecting 30% of acquisitions, closely followed by European capital at 29%. Looking at investor type, propcos, institutional capital, sovereign wealth and owner occupiers together accounted for 77% of total investment notes Colliers. There was a slight reduction in the dominance of private equity and private capital in comparison to 2024, with both only accounting for c.10% of investment each.

Christian Capocci, associate director in the Capital Markets team at Colliers One London, comments: “What we have seen is London once again be the destination of choice for a wide range of investors, and these improved investment figures will bring a renewed sense of confidence in the capital in 2026.

“This is further demonstrated by the change in the wind when it comes to lot size; with the number of £100 million+ deals transacting in 2025 vs 2024 more than doubling, and we have entered 2026 with eight £100 million+ deals already under offer. This, alongside the numbers we saw transacted in December is a strong indication that we will see a positive start to 2026 as momentum continues to get behind the market.”

One London brings together Colliers’ specialists across retail, food and beverage, capital markets, office leasing, tenant representation and strategy and analytics. The 60-person dedicated team has been created to give clients access to unrivalled market intelligence, and a bespoke client centric approach driven by the wealth of knowledge on London’s unique submarkets.