Self-build and new-build heat pump grants
Last verified: 20 August 2026 — against GOV.UK.
Self-build properties are eligible for the standard Boiler Upgrade Scheme grant provided the home was built by you or the original owner and has never been owned by a business. Because that is easy to claim and harder to prove, you may be asked for title deeds showing you built it.
A finished new build with a fossil-fuel boiler may be able to apply. A new build still under construction cannot. And the biomass boiler grant, which is limited to off-gas rural properties with an emissions certificate, is not available on self-builds at all.
Source: GOV.UK — Check if you’re eligible. Read 20 August 2026.
Frequently asked questions
Can a self-build get the Boiler Upgrade Scheme grant?
Yes, if you built it yourself or are the original owner and it was never owned by a business. You may be asked for title deeds as proof that you built it.
Does the biomass grant apply to self-builds?
No. The £5,000 biomass boiler grant is not available on self-builds. It is limited to off-gas, rural properties with an emissions certificate.
Can a finished new build with a fossil-fuel boiler apply?
A completed new-build property with a fossil-fuel boiler may be able to apply; a new build still under construction cannot.
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