Navigating funding for building decarbonisation

Why has decarbonisation funding become so urgent?

The regulatory case for decarbonising buildings is no longer a future consideration; it is an active financial risk.

Minimum Energy Efficiency Standards (MEES) regulations require commercial properties in England and Wales to achieve EPC C by 2028 and EPC B by 2030 before they can be legally let. Approximately a quarter of commercial properties currently hold ratings of D or lower. For landlords and owner-occupiers in that position, the compliance window is narrowing.

The financial consequences of inaction are significant. Properties that fail to meet incoming standards face void risk, rental discounts, and in some cases may become effectively unlettable. Early movers, by contrast, are accessing green finance on more favourable terms, protecting long-term asset values, and meeting the ESG expectations of increasingly selective occupiers and investors.

For public sector and education bodies, the picture is different but equally pressing. The closure of the Public Sector Decarbonisation Scheme (PSDS) to new applications in June 2025 removed a significant source of capital, leaving many organisations with 2030 net zero targets and a funding gap to address.

Acting early, and with a clear strategy, determines whether decarbonisation becomes a manageable investment programme or an emergency cost.

What funding routes are available?

The decarbonisation funding landscape is fragmented. No single scheme covers all property types, sectors, or project scales. Understanding which routes apply to your situation is the starting point for any credible strategy.

Government grants and public schemes

For education bodies and public sector organisations, several government-backed schemes remain active following the closure of PSDS:

• The Condition Improvement Fund (CIF) supports maintenance and improvement projects in eligible academies and smaller multi-academy trusts, including energy efficiency works such as boiler replacements and roof upgrades with improved insulation
• The School Condition Allocation (SCA) provides annual capital funding to larger multi-academy trusts and local authority-maintained schools, which can be directed towards heating system upgrades, ventilation improvements, and other efficiency measures
• Urgent Capital Support (UCS) provides emergency funding for academies facing critical building condition issues, including failing heating systems

Local authorities also operate their own funding streams for maintained schools, ranging from interest-free loans to match-funding arrangements. However, availability varies significantly by region.

Green finance and commercial lending

The green finance market has expanded considerably in response to net zero commitments and incoming MEES requirements. Several routes are now available to commercial property owners.

• Green mortgages and sustainability-linked loans offer preferential rates to borrowers undertaking qualifying energy efficiency improvements. Lenders assess EPC ratings, projected improvement, and the environmental credentials of planned works when determining eligibility and terms
• Energy performance contracts (EPCs) allow building owners to fund retrofit works through the projected energy savings the improvements generate. A specialist contractor installs and finances the measures; the building owner repays the cost from reduced energy bills over an agreed term
• Power Purchase Agreements (PPAs) provide a route to fund on-site renewable energy generation, typically solar, but without capital outlay. A third-party investor installs and owns the equipment; the building owner purchases the electricity generated at a fixed rate below market price

Private and blended funding models

For larger or more complex projects, a single funding source rarely covers the full scope of works. Blended funding (combining a government grant with a green loan and a PPA for example) is increasingly common and allows organisations to bridge capital gaps that would otherwise prevent projects from proceeding.

Lease finance for renewable installations and equipment provides another route for organisations that cannot or prefer not to capitalise expenditure immediately. Assets such as heat pumps, solar panels, and LED lighting systems can be financed through operating leases, preserving balance sheet capacity while delivering the efficiency improvements required.

How does funding differ by property type and sector?

The routes available vary considerably depending on who owns the building and how it is used. The table below summarises the primary options by stakeholder type.

What are the common barriers to securing decarbonisation funding?

Understanding the funding landscape is one challenge. Accessing it successfully is another. Several barriers consistently prevent organisations from securing the capital available to them.

Poor baseline data

Many funding applications fail because the applicant cannot evidence the current energy performance of their buildings with sufficient accuracy. An outdated or inaccurate EPC, or the absence of a detailed energy audit, undermines the credibility of any business case.

Weak financial justification

Funders, whether government bodies or commercial lenders, require clear evidence that proposed works will deliver measurable outcomes. Vague commitments to "improve sustainability" do not constitute a fundable business case. Projected energy savings, carbon reduction figures, and payback periods must be modelled and evidenced.

Misaligned funding windows

Government schemes open and close on defined timescales, and missing an application window can mean a 12-month delay. Organisations that begin preparation only when a scheme opens rarely submit competitive applications.

Underestimating the cost of preparation

Professional fees for energy audits, condition surveys, and application support are a necessary investment, not an optional addition. Organisations that attempt to self-prepare complex applications without specialist support consistently achieve lower success rates.

How do I build a fundable decarbonisation business case?

A credible business case is the foundation of any successful funding application or green finance arrangement. The following steps apply regardless of sector or funding route.

1. Commission an energy efficiency assessment – Establish a detailed baseline of your current energy consumption, carbon output, and EPC ratings across your estate. This data drives every subsequent decision and is required by most funders
2. Prioritise works by impact and urgency – Not all improvements deliver equal returns. Heating system upgrades, insulation improvements, and LED lighting typically offer the strongest combination of carbon reduction and financial payback. Prioritise works that address both MEES compliance requirements and operational cost reduction
3. Model costs and savings accurately – Develop a detailed cost-benefit analysis covering capital costs, projected energy savings, carbon reduction, and, where applicable, the avoided cost of MEES non-compliance. Quantified projections carry significantly more weight than qualitative statements
4. Identify your funding stack – Map available funding routes against your specific circumstances, such as property type, sector, project scale, and timing. Identify where gaps exist and which blended finance models could bridge them
5. Prepare a compelling application – Applications should be evidence-led, clearly structured, and directly responsive to the funder's stated criteria. Professional support at this stage materially improves success rates and reduces the risk of rejection on technical grounds
6. Plan for the long term – Decarbonisation rarely happens in a single project cycle. A phased programme that is aligned with funding windows, lease events, and planned maintenance is more achievable and more fundable than an attempt to address everything at once

Take the next step on your decarbonisation journey

Decarbonisation funding is available, but accessing it successfully requires preparation, accurate baseline data, and a clear understanding of which routes apply to your circumstances.

We work with commercial property owners, landlords, public sector bodies, and education estates to identify funding options, build credible business cases, and manage projects from initial assessment through to completion. Our RICS-certified surveyors and funding specialists combine technical expertise with a track record of securing capital across a range of schemes and sectors.

To discuss your decarbonisation funding options, contact us using the form below for a free initial consultation.