🏙️ London offices face obsolescence risk under new green rules

Thousands of London office buildings could become obsolete as future energy-efficiency rules tighten, with the biggest exposure in Westminster and the City of London. Bloomberg reported that many older assets are unlikely to meet forthcoming Minimum Energy Efficiency Standards.

The report, published on 2026-05-12, frames the issue as a major retrofit challenge for landlords across central London. It says analysis of government data by Robert Irving Burns indicates that 78% of offices in Westminster and 71% in the City of London are expected to fail the proposed standards, which are due to take effect in the early 2030s. The article argues that weaker-performing stock may need substantial upgrades to remain competitive with occupiers and investors.

Why it matters for investors

The regulatory squeeze turns energy performance into a valuation issue, not just an operating-cost issue. Older offices that cannot be upgraded efficiently may face slower leasing, weaker exit pricing and higher capex requirements, while better-located, more efficient buildings could capture a larger share of tenant demand and investment capital.

➡️ The biggest risk sits with secondary office stock in prime submarkets where retrofit costs may not be recovered quickly.

➡️ Energy-efficient buildings are likely to command a widening premium as compliance deadlines approach.

The signal for London commercial property is clear: obsolescence risk is shifting from a long-term theme to a near-term pricing factor.