How can businesses and landlords use green mortgages to decarbonise their properties?

The pressure on commercial property owners to improve energy performance has been increasing over time. Minimum Energy Efficiency Standards are tightening, tenant expectations around sustainability are rising, and lenders are increasingly factoring Energy Performance Certificate (EPC) ratings into their decisions.

For businesses that own their premises, as well as landlords managing various properties, the need to retrofit buildings to meet those demands is becoming increasingly necessary.

Green mortgages for businesses and landlords are considered to be a practical financing route, though they can still be misunderstood in a commercial context. This article explains:

· How a green mortgage works.

· How green mortgages work for landlords and businesses.

· Green mortgage interest rates.

· What are the benefits and limitations of green mortgages.

How does a green mortgage work, and what is it?

A green mortgage is a loan product that offers more favourable terms, typically a reduced interest rate, cashback, or enhanced loan-to-value, in exchange for the property meeting certain energy efficiency criteria. The principle is straightforward: lenders reduce the cost of borrowing for properties that present a lower environmental risk.

Eligibility is most commonly linked to an EPC rating. Properties rated A or B tend to receive the most competitive terms. Some lenders will also consider properties rated C, or those where the borrower can demonstrate a credible plan to reach a higher rating within a defined timeframe.

In the buy-to-let and commercial lending space, a number of lenders have also begun offering cashback incentives specifically tied to improving EPC ratings, rather than requiring compliance from the outset.

Green mortgage interest rate benefits has historically been modest; discounts of between 0.1% and 0.3% are typical, but that margin can translate to meaningful savings across a longer mortgage term or a larger loan amount.

The more tangible advantage for many borrowers is access to additional capital to fund the improvements themselves, combined with the long-term reduction in energy costs that a better-performing building will deliver.

What is the regulatory context that is driving demand for green mortgages?

Green mortgages for businesses and landlords are largely a direct response to tightening building energy regulations. For commercial landlords in England and Wales, the Minimum Energy Efficiency Standards (MEES) already prohibit the granting or continuation of a lease on a property rated F or G.

The government has long signalled that the threshold will rise, with EPC B widely expected to become the minimum for letting commercial premises, likely by 2030 to 2035.

For businesses occupying their own premises, the motivation is slightly different. Reducing operating costs, meeting corporate net zero commitments, and future-proofing the value of the property.

Either way, the logic is the same: buildings that perform better on energy will be easier to let, easier to finance, and worth more. That is the commercial case for acting now rather than waiting for regulation to force the issue.

Landlords and businesses can use green mortgages to fund that transition at a lower cost of capital than a standard commercial loan might provide.

How can landlords use green mortgages to decarbonise their properties?

For landlords, green mortgages are most useful in two scenarios:

1. At the point of acquisition, where a property already meets or exceeds EPC A or B and preferential terms can be applied from day one.

2. During a refinancing, where improvement works have been completed and the lender can be shown evidence of the improved rating.

Some lenders have also begun structuring products where a portion of the funds can be reserved for energy efficiency improvements, with a commitment to reassess the rate once the works are complete and a new EPC has been issued. This staged approach with green mortgages for landlords is worth exploring if the property currently sits at D or E and improvement works are being planned.

The types of work that typically move a commercial property up the EPC scale include:

• Roof and wall insulation upgrades.

• Replacement of gas heating systems with heat pumps or electric alternatives.

• Installation of solar photovoltaic (PV) panels.

• Replacement of single-glazed windows with double or triple glazing.

• Upgrade of lighting to LED throughout.

A pre-improvement survey or building energy assessment will identify which of these measures will have the greatest impact on the EPC rating relative to their cost. That analysis should inform both the work taken on and the conversations with your lender.

How can green mortgages help to decarbonise my premises?

Green mortgages for businesses can reduce the cost of finance as well as lower the ongoing energy costs of operating the building. For businesses with net zero commitments or sustainability reporting obligations, green mortgages also provide a structured mechanism for demonstrating progress on Scope 1 and Scope 2 emissions reduction.

The conversation about green mortgages for businesses with a lender will typically begin with the current EPC rating of the property, as well as the gap between that rating and the minimum requirement to qualify for green terms. Where that gap is achievable, refinancing onto a green product after completing the works can secure a better rate and free up capital for reinvestment in the business.

As well as this, the green mortgage market for businesses with commercial properties is still developing. Fewer products exist in the commercial lending space, and as terms vary widely, taking specialist advice before approaching lenders is strongly recommended.

What are the limitations of green mortgages?

Green mortgages are not a solution in themselves. The interest rate advantage is typically modest, and it is worth comparing the all-in cost of a green product against the best available standard commercial mortgage.

The more significant consideration for most owners is the cost and disruption of the improvement works themselves. Green mortgage finance for businesses and landlords can help fund those works, but it cannot make them inexpensive. A thorough assessment of what is required to reach the target EPC rating needs to come before any financing conversation.

For older or more complex commercial buildings, there may also be structural or heritage constraints that limit what can be achieved. In those cases, an exemption under MEES may be available, but that is a separate question from the green mortgage conversation, and one that requires its own professional assessment.

Speak to BTG Eddisons about green mortgages

Our specialists in decarbonisation can help landlords and businesses looking to secure a green mortgage improve their sustainability credentials, receive potentially lower rates, and future-proof their premises.

With over 180 years of experience, consistently positive reviews from our clients, and expertise throughout our team, we can work with you to identify a green mortgage solution that meets your individual needs.

Whether you are a commercial landlord, an investor, or an owner-occupier in the UK, we can provide the surveying, valuation, and advisory support needed to make those decisions. To speak with one of our team, call 0330 191 5869, email [email protected], or complete the contact form below.