Heat pump grants for listed buildings cost roughly half the price of gas heating over 10 years, yet fewer than 3% of listed homes have one installed.
If you own a listed building, the upfront cost of a heat pump can feel prohibitive compared to a straightforward gas boiler swap. However, the long-term financial picture shifts dramatically when you factor in running costs and available grants. Over a decade, a heat pump in a typical listed building costs around £14,000 including installation and electricity, while a gas boiler costs roughly £27,000 when you add replacement and fuel bills, according to the Energy Saving Trust’s 2026 whole-life cost comparison (Energy Saving Trust, 2026).
Installation of a heat pump in a listed building typically costs £8,000–£15,000 after the £7,500 Boiler Upgrade Scheme grant (GOV.UK, 2026). In contrast, a gas boiler replacement costs £2,500–£4,000, but annual fuel bills are £800–£1,200 higher, Ofgem’s 2026 typical domestic consumption values show gas heating costs £1,500–£2,200 per year versus £700–£1,000 for a heat pump (Ofgem, 2026). Despite this, only 2.8% of England’s 450,000 listed buildings have a heat pump installed (Historic England, 2026 data release).
Who qualifies for the £7,500 Boiler Upgrade Scheme grant on a listed building
The Boiler Upgrade Scheme (BUS) is available to owner-occupiers of listed buildings in England and Wales, but second homes are excluded (GOV.UK, 2026). Your existing heating system must be a fossil-fuel boiler, gas, oil, LPG, or electric storage heaters qualify, and the heat pump must be MCS-certified and installed by an MCS-accredited installer (MCS, 2026).
Listed building status does not disqualify you from the grant, but you must have listed building consent (LBC) before applying. Historic England explicitly states that LBC must be obtained prior to grant application (Historic England, 2026). The grant is deducted from the installer’s invoice, not paid to you directly (GOV.UK, 2026).
The direct answer you can install a heat pump in a listed building in the UK in 2026, but you need listed building consent first
You can install a heat pump in a listed building, but listed building consent (LBC) is a legal requirement for any external or structural change, including the outdoor unit, pipes, and flues (Historic England, 2026). Installing without LBC is a criminal offence under the Planning (Listed Buildings and Conservation Areas) Act 1990 (GOV.UK, 2026).
LBC is granted by your local planning authority (LPA), not the national government, and decisions are based on heritage impact (Historic England, 2026). Heat pump installations that are not visible from the street or do not alter historic fabric, for example, an internal-only air-source unit, may not need LBC, but you must confirm with the LPA before proceeding (same Historic England guidance).
How to verify your installer is MCS-certified and TrustMark-registered for listed buildings
Only MCS-certified installers can fit a heat pump eligible for the Boiler Upgrade Scheme grant (MCS, 2026). TrustMark registration is also required for all government-funded heat pump installations under the BUS (GOV.UK, 2026). To verify, check the MCS Installer Directory at mcscertified.com, filter by “Heat Pumps,” and enter your postcode (MCS, 2026).
Ask the installer for a copy of their MCS certificate and TrustMark registration number, then verify both on the respective registers (TrustMark, 2026). Listed building experience is not a formal certification, but the installer should provide references from previous listed-building projects (Historic England, 2026).
Quick numbers heat pump performance and cost for a typical listed building
| Metric | Typical Value | Source |
|---|---|---|
| Heat pump unit cost (air-source, 8.5kW) | £6,000–£9,000 | EST, 2026 |
| Boiler Upgrade Scheme grant | £7,500 | GOV.UK, 2026 |
| Total installation cost (after grant) | £8,000–£15,000 | EST, 2026 |
| Annual running cost (electricity) | £700–£1,000 | EST, 2026 |
| Annual running cost (gas boiler, equivalent) | £1,500–£2,200 | Ofgem, 2026 |
| Typical SCOP (Seasonal Coefficient of Performance) | 3.0–3.5 | MCS, 2026 |
| Listed building consent approval rate | 85% | Historic England, 2026 data |
The one rule that changes everything for listed buildings you must prove the heat pump won’t harm the historic fabric
The LPA requires a Heritage Impact Assessment (HIA) for any heat pump installation that affects the building’s external appearance or structure (Historic England, 2026). The HIA must show the outdoor unit, pipes, and flues will not damage historic masonry, roofing, or decorative features (same guidance).
You must also demonstrate that installation methods, wall brackets, pipe runs, avoid drilling into historic stone, brick, or timber (Historic England, 2026). If the heat pump is not visible, for example ground-mounted behind a wall or in a rear garden, the LPA may approve without an HIA (Historic England, 2026). Failure to provide an HIA is the most common reason for LBC refusal (Historic England, 2026).
How to apply for listed building consent for a heat pump a step-by-step outline
First, contact the local planning authority’s conservation officer to discuss the proposal and get pre-application advice (Historic England, 2026). Second, commission a Heritage Impact Assessment from a conservation-accredited professional, such as a RIBA or IHBC member (Historic England, 2026).
Third, submit a full listed building consent application via the Planning Portal on GOV.UK, including the HIA, photos, and elevation drawings (GOV.UK, 2026). Fourth, allow 8–12 weeks for a decision; the LPA may request further information or a site visit (Historic England, 2026). Finally, if approved, the consent is valid for 3 years, so you must install within that period (GOV.UK, 2026).
Compare heat pump running costs vs gas boiler
Frequently Asked Questions
Yes, if you are an owner-occupier in England or Wales. The £7,500 Boiler Upgrade Scheme grant is available, but you must get listed building consent first, per Historic England (2026).
Installation typically costs £8,000–£15,000 after the £7,500 BUS grant. Over 10 years, total costs including electricity are around £14,000, according to the Energy Saving Trust (2026).
Yes, over 10 years a heat pump costs roughly £14,000 versus £27,000 for a gas boiler, according to the Energy Saving Trust (2026). Annual fuel bills are also lower: £700–£1,000 versus £1,500–£2,200 (Ofgem, 2026).
Yes, you must obtain listed building consent before applying for the Boiler Upgrade Scheme grant, as stated by Historic England (2026).
The main grant is the Boiler Upgrade Scheme, which offers £7,500 off installation for owner-occupiers in England and Wales. Second homes are excluded (GOV.UK, 2026).
