Green Further Advance mortgage

If you'd like to make improvements to the energy efficiency of your property, you could borrow more on your existing mortgage from The Mortgage Works with our Green Further Advance mortgage.

To qualify, you must spend 100% of your new advance on energy efficient home improvements.

Features and benefits

  • There is a lower initial interest rate compared to our standard further advance product range
  • There are no product fees with these mortgages
  • You can borrow from £2,500 up to £15,000
  • You can borrow up to 75% Loan to Value

You can use a Green Further Advance mortgage to fund improvements that could improve your property's Energy Performance Certificate (EPC) rating. Find out more about EPCs.

View the rates on our mortgage rate finder.


To borrow more, you need to make sure you:
  • Are a buy to let customer with The Mortgage Works
  • Have owned and let the property for at least 6 months
  • Have been making full monthly payments on your mortgage for at least 6 months
  • Have not been in arrears during the last 12 months
  • Want to borrow at least £2,500

We won't accept applications to borrow more if:

  • You are in the process of switching your mortgage deal
  • You want the money for business purposes
  • There's more than 2 people on the mortgage
  • The property will be rented out to an immediate family member

What you can use the money for

You must spend 100% of your additional borrowing on acceptable energy efficient home improvements. We may carry out checks to ensure work has been completed.

This eligibility requirement is in addition to our Standard Further Advance mortgage eligibility, you can view this on our borrow more page.

Acceptable energy efficiency improvements
  • Solar panels
  • Traditional insulation
  • Air or ground source heat pumps
  • Cavity wall or loft insulation
  • Investment in rain water harvest
  • Replacement windows
  • Upgrading existing utilities
  • Pipes and boiler insulation
  • Boiler upgrade
  • Small scale wind turbines
  • Electric car charging stations

Apply for a Green Further Advance mortgage

If you're ready to apply, you will need to book an appointment and talk to one of our mortgage consultants.

The team are available 9am to 5pm, Monday to Friday.

If you have any questions about our But to Let mortgages, contact us. If you need advice, please contact your broker or an Independent Financial Adviser.

Reducing our environmental impact

As the buy to let lender of Nationwide, we've collectively taken steps to ensure we're reducing the environmental impact of our business operations.

  • We have set intermediate (by 2030) science-based targets for reducing our carbon emissions, in line with the UK's goal to be net-zero by 2050. Some of the action we are taking includes sourcing 100% renewable energy and becoming gas-free across all business operations by the end of 2030 and replacing this with electrical solutions
  • We continue to divert as much waste as possible from landfill, with 97% of waste being diverted over the financial year, ending 4 April 2024
  • We measure our waste and water consumption across our sites

More about reducing our environmental impact

Important: All buy to let mortgages are subject to underwriting and criteria. Mortgages are secured on your property. You could lose your property if you do not keep up payments on your mortgage.