ESG Requirements to Meet Commercial Occupier Demand

ESG is now a core capital strategy. Is your portfolio prepared?

The shift toward quality in UK commercial property reflects a structural repricing. Buildings lacking credible ESG performance face yield compression, increased vacancies, and restricted access to capital. With significant stock requiring upgrades to meet regulations and reduce vacancies, now is the time to implement a plan.

In Central London, Grade A space accounted for around 94% of office take-up in H1 2026, with demand concentrated in modern, well-located buildings offering strong sustainability credentials.
BREEAM Excellent or Outstanding-rated buildings accounted for 65% of space acquired in H1 2026, while older, less efficient stock continues to face rising vacancy and longer voids.
Prime rents in core London markets rose again through H1 2026, despite broader economic uncertainty, driven almost entirely by demand for high-quality, ESG-aligned space.
The same pattern is playing out across Manchester, Birmingham, Bristol, Leeds and Edinburgh, where constrained supply of best-in-class offices is pushing occupiers towards fewer, better buildings.

Market demand is shifting toward future-proofed assets.

The data from H1 2026 shows that Central London, Grade A space accounted for approximately 94% of office take-up, with demand concentrated in buildings that can demonstrate strong sustainability credentials. BREEAM Excellent and Outstanding-rated assets now dominate leasing activity. Prime rents continued to rise through broader economic uncertainty, driven almost entirely by occupier demand for ESG-aligned space.

This trend is evident in Manchester, Birmingham, Bristol, Leeds, and Edinburgh. Limited supply of top-tier assets is driving institutional occupiers toward higher-quality buildings and away from secondary stock that does not meet their needs.

Capital and occupier demand are becoming more concentrated. Assets without a defined ESG upgrade plan are falling further behind.

For investors and asset managers, the impact is clear: the gap between prime and secondary assets is widening in both rental income and capital value. Secondary assets without a credible improvement plan will not attract quality occupiers.

Why occupiers are driving the shift in corporate ESG commitments

Occupiers are not making ESG-driven leasing decisions out of preference. They are under board-level pressure to:

Meet corporate net-zero and sustainability commitments
Reduce operational and energy costs against a backdrop of sustained energy price volatility
Attract and retain talent in a competitive labour market where workplace quality matters
Protect themselves from regulatory exposure as Minimum Energy Efficiency Standards tighten

As a result, larger corporates with strong covenants now prioritise ESG criteria in property searches above all else. For landlords, ESG performance directly influences covenant quality as well as occupancy rates.

Timelines for improving assets

DESNZ confirmed the direction of Minimum Energy Efficiency Standards (MEES) regulation in June 2026: EPC B by 2031 for non-domestic rented buildings over 1,000 sqm, subject to secondary legislation still to be passed by Parliament. The previously proposed EPC C interim milestone for 2027 has been dropped. Buildings under 1,000 sqm remain on the current EPC E minimum, with no new deadline set.

That doesn’t remove the pressure, it changes where it comes from. The regulatory deadline sits five years out and isn’t yet law. The financing pressure is already live: lenders are factoring EPC ratings into credit assessments now, regardless of where a building sits on the regulatory trajectory.

For portfolio managers, the key question isn’t which assets will breach a 2027 deadline, there isn’t one. It’s which assets are quietly affecting financing terms today, and which will need the longest run-up to reach EPC B by 2031 once the legislation is confirmed.

ESG performance now affects financing terms

The impact of ESG on access to capital is often underestimated. Lenders are increasingly incorporating sustainability criteria into due diligence. Green loan frameworks, sustainability-linked debt covenants, and ESG scoring in credit assessments are becoming standard practice in institutional real estate finance.

Assets with measurable ESG performance, supported by certified ratings, energy data, carbon reporting, and tenant alignment, secure better financing terms. Those without face increased scrutiny, higher margins, or lower loan-to-value ratios. For CFOs and investment committees, ESG is now integral to financing and capital allocation strategy, not just to asset management or leasing.

Framework for prioritising your portfolio

Not all assets in a portfolio carry equal ESG risk or value creation potential. Begin by assessing each asset with three key questions:

Current EPC rating and trajectory: What is the asset’s current rating, when is it next reviewed, and what capex is required to move to the next band?
Occupier alignment: Are existing tenants under ESG commitments that the building currently supports — and would they renew on that basis?
Capital and leasing event alignment: Is there a lease expiry, refurbishment cycle or refinancing event approaching that creates a natural window for improvement work?

This diagnostic can be simple yet effective. Its purpose is to identify assets with the greatest urgency, highest improvement potential, and the shortest window for action.

Turning ESG Strategy Into Executed Outcomes

The gap between having an ESG strategy and delivering measurable outcomes at asset level is where many portfolios stall. Reporting frameworks, board commitments and sustainability policies are necessary — but they do not move EPC ratings, improve BREEAM scores or reduce operational carbon.

Papilio partners with specialist ESG advisors to translate compliance requirements and investment objectives into a phased, costed asset improvement plan. We deliver a clear roadmap for landlords and asset managers, sequenced around lease events, capital programs, and regulatory timelines, and then execute the plan.

Our approach is fully integrated into daily management. ESG performance data is tracked and reported in real time through our platform, providing clients with clear visibility of progress against targets without extra reporting infrastructure. For institutional investors and fund managers, ESG outcomes are embedded in asset management rather than managed separately.

We turn ESG obligations into a costed, sequenced improvement plan and execute it. Clients see progress directly in their dashboard, not only in annual reports.

Speak to Our Team

If you manage a commercial portfolio and want to identify assets with the highest ESG risk or develop an improvement program aligned with your capital and leasing strategy, we welcome a conversation.