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Guide 3 min read 6 May 2026

Do I Need to Install a Heat Pump for My New Build?

Do you need a heat pump for your new build? Learn how Part L 2021 and Part L 2026 affect compliance, heating choices, and SAP…

Do I Need to Install a Heat Pump for My New Build?

A common question for developers and self-builders is whether a heat pump is now a mandatory requirement for new homes. The answer depends on which version of Part L Building Regulations your project must comply with.

As the UK moves toward the Future Homes Standard, heat pumps are rapidly becoming the primary solution for achieving energy compliance.

Part L 2026: The “Heat Pump Standard”

For projects assessed under the upcoming Part L 2026 (the Future Homes Standard), the requirements are significantly stricter:

  • Heat Pumps are Essential: They are the only realistic heating option for the vast majority of new-build projects to meet carbon reduction targets.
  • Fossil Fuel Phase-Out: Traditional gas and oil boilers will effectively no longer comply with these new regulations.
  • Highly Efficient Alternatives: In specific cases, such as highly efficient blocks of flats with very low heating demand, electric panel heaters paired with heat pumps for hot water may be viable.

Part L 2021: Flexibility Still Exists

If your project falls under the Part L 2021 transitional arrangements, you have more flexibility, though heat pumps remain a strong choice:

  • Simplest Compliance Path: Installing a heat pump is often the easiest way to pass your SAP Calculations and can sometimes allow you to avoid installing solar PV.
  • Gas Boilers with Solar PV: You can still install a gas boiler, but it must usually be offset by a significant Solar PV system to meet the necessary carbon emission targets.

Why Professional SAP Calculations Are Critical

Because every project is unique, a “one size fits all” approach doesn’t work. The best way to determine the most cost-effective route to compliance is through detailed modelling during the design stage.

Achieve Compliance with UK Building Compliance

Achieving Part L compliance requires more than just a report — it requires expert strategy. At UK Building Compliance (UKBC), we support your journey with:

  • Free Dashpivot App: Simplify your photographic evidence requirements for Part L compliance.
  • Expert Technical Assistance: Guidance on fabric standards, heating specs, and renewable options.
  • Unlimited Design Revisions: We include specification changes in our cost to ensure you reach a “pass”.
  • Seamless Integrated Services: We can coordinate your Air Pressure Testing directly with your SAP reports for a faster sign-off.

Ready to navigate the new regulations?

Get a quick quote or contact UK Building Compliance today for expert advice on how we can help you meet the Future Homes Standard.

Still got a question? Ask us directly.

Our engineers answer compliance questions every day. No hard sell — just a straight answer.

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