Key Features

  • We provide a straightforward, individual mortgage service for renovation projects

  • We welcome properties that are in a bad state of repair but to be eligible, they must be classified as existing residential properties

  • Our current Standard Variable Rate is 4.65%
    Representative example:
    A mortgage of £95,300 payable over 25 years on our Standard Variable Rate, currently 4.65%, would require 300 monthly payments of £537.85.
    The total amount payable would be £161,895 made up of the loan amount plus interest (£66,055) and a mortgage application fee of £300 and a valuation fee of £240 (assuming a purchase price of £200,000).
    The overall cost for comparison is 4.80% APRC representative

  • We’ll consider lending up to four times joint or sole income subject to loan to value and an affordability assessment

  • Energy efficient homes are rewarded with discounts off our Standard Variable Rate – see details below of how our C-Change retrofit discounts work

  • Mortgages are available on a repayment, interest-only or part (repayment) and part (interest-only) basis

  • Interest-only and part interest-only mortgages are subject to an acceptable repayment vehicle

  • You can borrow up to 90% of the property’s value on a repayment basis, or up to 75% interest-only or part (repayment) and part (interest-only)

  • An early repayment charge may be payable if you repay all or part of your mortgage within the first two years

  • A non-refundable mortgage application fee of £300 is payable in addition to a mortgage valuation fee

  • A maximum mortgage term of 30 years is available (subject to eligibility).

    If your project requires planning permission or listed building consent, this will need to be in place before we lend any mortgage funds.

Our approach to lending during your renovation project
  • We’ll lend up to 90% of the purchase price or current value of the property (whichever is the lower) on a repayment mortgage
  • If you require funds for the renovation, we can stage release payments of up to 90% of the value as the works to the property progress
  • Our Standard Variable Rate applies until the date we receive evidence that both the renovation work has been completed and the Energy Standard rating required has been achieved.
Our standard of service

The Financial Conduct Authority (FCA) has laid down detailed rules about the service we must offer on regulated residential mortgages. Under these rules, we will provide you with advice and recommendation on which of the Society's products is most suitable for you, based on your needs, preferences and affordability. Where a mortgage is not regulated by the FCA (as shown on the 'Key features' tab), you will be provided with full information about the mortgage products available from the Society so that you can make an informed decision as to which is suitable for your requirements.

What we lend on

We don't have a 'tick box' approach to assessing projects –in many instances, we'll welcome projects that standard lenders reject. We will consider:

  • Thatched properties
  • Historic listed buildings
  • Fire damaged buildings
  • Non-standard construction types, such as timber
  • Old terraced buildings in a bad state of repair.

Our mortgages are available across England, Scotland, Wales and Northern Ireland.


Further reading

best buy_ECM

Ecology Building Society was rated as an ethical Best Buy for our mortgages and savings accounts by Ethical Consumer magazine in its product guide rankings (July/August 2016 issue).



C-Change discounts explained

As a building society with a unique mission to build a greener society, we only lend on projects and properties that support our aims through their reduced impact on our environment. Making your home energy efficient is a major way you can support tackling climate change – while saving on your energy bills. We reward borrowers whose properties are energy efficient, and therefore have lower C02 emissions, and help them save money on their mortgages with our C-Change discounts. We call our discounts ‘C-Change discounts’ simply because we’re aiming to make a ‘sea-change’ of difference to our climate with each property or project we fund.

The level of our C-Change sustainable homes, C-Change retrofit or C-Change energy improvements discount that applies is based on the Energy Standard rating achieved on the self-build, renovation, conversion or energy improvements when the work is completed. The discount is applied from the date we receive evidence that the work has been completed and the required Energy Standard rating has been achieved.

When your renovation is complete

Our Standard Variable Rate applies until we receive evidence that the Energy Standard rating required has been achieved and, if applicable, work has been completed. Once your renovation is complete, you need to provide a copy of the final Energy Performance Certificate (EPC).
A discount of 0.25% will apply to our Standard Variable Rate for every grade improvement in your home’s EPC rating and the discount will be applied to all your mortgage balance.

How we work out your Variable Mortgage Rate:
Standard Variable Rate (SVR) minus C-Change retrofit discount = Variable Mortgage Rate
For homes needing extensive renovations / energy efficiency improvements: C-Change retrofit discount

The C-Change retrofit scheme offers a discount of 0.25% from our Standard Variable Rate for each rating improvement in your home’s Energy Performance Certificate (EPC). This could be either its Energy Efficiency or Environmental Impact rating – whichever is the highest.

For example, if either EPC rating improves from E to C after the works to the property are completed, a discount of 0.50% will be available on the whole of the mortgage, for the duration of the loan. The discounts are deducted from our Standard Variable Rate (currently 4.65% – the overall cost for comparison is 4.80% APRC).

To apply the discount, we need to receive an EPC before you undertake works to your home and another EPC once works are completed. We will compare the revised EPC with the original rating, and apply the discount based on the grade improvement achieved. Until we have received your revised EPC, we will charge interest at our Standard Variable Rate. You can find out more by downloading Our C-Change discount leaflet.

Energy StandardEnergy Efficiency or Environmental Impact RatingSVR (Standard Variable Rate)Discount %Variable Mortgage Rate
Energy Performance Certification (EPC)EPC rating improvement4.65%0.25% for each improvement in the EPC rating4.40 -3.15% The overall cost for comparison is 4.80% APRC
Energy StandardRatingsSVR (Standard Variable Rate)Discount %Variable Mortgage Rate
PassivhausEnerPHit or EnerPHit+i4.65%1.25%3.40%. The overall cost for comparison is 4.80% APRC
PassivhausEnerPHit (PHPP modelled)4.65%0.75%3.90%. The overall cost for comparison is 4.80% APRC
Our fees

Residential mortgage valuation fees

Value of property not exceedingFee
Up to each £50,000 thereafter add£30

Please note these fees apply to residential and buy-to-let applications.

In all other instances, the fee required will be determined on a case-by-case basis.

A more detailed inspection, such as a Homebuyers Report can often be provided by the same valuer at a fee to be negotiated. Please advise on this point when submitting your application. Depending on the nature of the property, the fee required may on occasion differ from this scale. Valuation fees include VAT.

Application Fee

A non-refundable mortgage application fee of £300 is payable in addition to a mortgage valuation fee.

Early repayment charge

An early repayment charge may be payable if you repay all or part of your mortgage within the first two years.

Our services, fees, tariffs and charges

The Society reserves the right to amend existing services and charges, or to introduce new ones.

Any change to charges will only reflect the increased operational costs of providing the service. You will always be notified before any changes are implemented.

For further details and tariff information please see Our rates and charges leaflet.

Renovation FAQs

Do I need to provide planning permission for my renovation?

Planning permission is required from your Local Authority if you are extending or altering the property and this requires formal planning permission.

What information do I need to progress my renovation mortgage application?

You’ll need to have a specific property renovation in mind and provide details of material and labour costs, the current Energy Performance Certificate (EPC) of the property and the projected EPC rating when you complete your renovation.

What deposit do I need for my renovation?

You need a 10% minimum deposit to purchase the property and a further 15% – 20% of total build costs to start your renovation.

Do I still need a deposit for my renovation if I already own the property?

No, you don’t always need a deposit; we can lend based on the value of your property to start the renovation, providing you already own the property and it’s mortgage-free. Also, we can help you repay any outstanding finance on the property if you need it.

Do borrowers who are planning to renovate need to show how they plan to improve the property’s energy efficiency?

Any project we support needs to show details of the proposed renovation with an indication of the Energy Standards you are renovating to, and how the renovation costs are expected to be funded with savings and mortgage finance. We don’t just lend on the property purchase.

How long do I have to complete the renovation?

We allow a maximum of 2 years for you to complete the renovation, although we encourage you to complete earlier to benefit from our C-Change retrofit discount which is applied to our Standard Variable Rate from the date we receive evidence that both the work has been completed and the Energy Standard rating required has been achieved.

Do you offer stage payments for a renovation?

Yes, we release funds as and when the renovation progresses and release up to a percentage of the increased value of the property.

Can I have interest-only mortgage during the renovation phase?

We offer an interest-only mortgage only when you have a qualifying repayment vehicle to support this for example an established ISA, endowment policies or Pension Plan.

Does the renovation property have to be my main residence?

Yes, although we do offer a buy-to-let mortgage. Please bear in mind that we don’t offer mortgages for second homes, holiday homes or homes classed as mobile planning.

How to apply

If you are interested in becoming an Ecology borrower we would love to hear from you. Complete the enquiry form below or call us on 01535 650 770

Renovation mortgage enquiry

First name*


Email address*

Phone number*

What do you want to do?

How much would you like to borrow?

How will you finance it?

We’ll only use your details to respond to your query and for legal/regulatory obligations. Your information will not be used for marketing purposes, unless you have requested this.