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Spire Renewables

Welcome to the Self-Build Home BUS Application Form

To verify your BUS application with Ofgem, please complete the property owner's details below.

Our team will review your submission and contact you if any further information is required.

You may save your progress as a draft and return to complete at a later time.

Fields marked with an asterisk (*) are required.

This can be found in the covering email from Spire Renewables. This will help validate and identify your submission.

Contact Information

Ofgem will need to contact the property owner to verify that they consent to this application.

It’s important to note that requesting this contact information falls within Ofgem’s remit as the scheme administrator.

Is the property owner an individual or a organisation/company? *This would be the named proprietor on the title deed.

⚠️ Please note that, under Ofgem's eligibility criteria, the Boiler Upgrade Scheme (BUS) only accepts self-build applications from individual applicants - not from companies or other business entities.

If your self-build property is owned by a company or business, please contact Spire Renewables directly to discuss your options.

Ensure this information is identical to that shown on an official document, such as your passport or driving licence. If the property has multiple owners, give details of any owner that can represent the others.
This is the address of the property where the installation is taking place.
Is the Installation Address different to your Home Address? *Ofgem will need this to run identity checks on the property owner. Please ensure the home address is the property owner currently lives. If the property is an eligible self-build, it’s unlikely that this will be the same home address that we need to run our checks against.
This number must be used in all correspondence with Ofgem.
This e-mail address must be used in all correspondence with Ofgem.
Can you consent via an Email link? *If the property owner does not have an email address and cannot go online to give their consent, Ofgem will have to confirm their consent in writing, using paper forms.
Will consent need to be given in Welsh / Cymraeg? *If the property owner needs to communicate in Welsh, Ofgem may have to confirm their consent in writing, using paper forms.
Is your Home Address the same as the Billing Address? *

BUS Questions

Fields marked with an asterisk (*) are required.

Proving Your Property is an Eligible Self-Build

To confirm your property qualifies as a self-build, you must provide evidence from the list below.

Please read the requirements carefully, as incomplete or non-compliant evidence will result in delays or rejection of your application.

All evidence must clearly identify the applicant as the property owner.

Required Evidence

You must submit evidence of the following as proof of eligibility:

· Proof of ownership – (e.g. an Official copy of the title deeds and title plan, or contract of sale or solicitor’s letter of completion)

· Invoice(s) for major structural work (e.g. foundations, timber frames. Invoices for internal works (e.g. re-wiring, kitchen fitting) will not be accepted.)

These must clearly show the name of the individual property owner and the installation address

· Planning Permission Decision Notice Document.

Optional Supporting Documents

The following is not required but will support your application:

· Self-Build Insurance documents.

· Proof of Self-Build Financing documentation confirming a self-build VAT exemption, self-build loan, or self-build mortgage.

· Dated contract(s) between the applicant and contractor(s), and/or invoices from builders or tradespeople. Please note this will become mandatory if invoices are not in the name of property owner.

Please note: Do not send bank statements with your application.
If these are needed, Spire Renewables or Ofgem will contact you directly to request them.

Drag and Drop (or) Choose Files

If you are having trouble uploading files, please contact us directly.
    Is the property on the Gas Grid? *This means the property is connected to mains gas. A capped gas supply, or gas being available in the road, still counts as being on the gas grid according to Ofgem. Ofgem requires this information for all heating types for monitoring purposes, regardless of eligibility.
    What type of heating will be installed? *
    Will the property be used for Social Housing? *This scheme defines social housing as any rental or owned accommodation that's provided at lower than market value to people that could not have afforded it otherwise. It includes shared equity and shared ownership arrangements, and shared ownership trusts.

    ⚠️ Please note, as the property will be used for social housing, we are unable to submit a BUS Application on your behalf.

    Draw your signature here

    Your browser does not support e-Signature field.

    Please sign here to confirm all information in this application is true and correct to the best of your knowledge. I agree to use an electronic signature and understand it has the same legal effect as a handwritten signature.
    Save as Draft

    Our customer service is available Monday to Friday | 8:30AM to 5:30PM

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    📧 [email protected]
    📍 Unit 7a, Moy Road Industrial Estate, Taff's Well, Cardiff CF15 7QR, United Kingdom

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    Company Number: 09157994

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