Do new homes in Scotland need a heat pump?

Do new homes in Scotland need a heat pump?

No law says a new home must have a heat pump. What the law requires, through the New Build Heat Standard, is that the main heating in a new building does not burn gas or oil on site. It applies to new buildings, and some conversions, where the Building Warrant was applied for on or after 1 April 2024.

That leaves several options for the main heating and hot water:

• A heat pump: air source, ground source or water source.
• A heat network, which counts as clean heating whatever fuel the network uses, if there is one near your site.
• Direct electric heating, such as an electric boiler, storage heaters or panel heaters.
• Bioenergy, such as a wood pellet or log boiler, which amendments from November 2024 allow.

The home must also meet the energy standards in section 6 of the Building Standards, and the running costs of each system differ widely. That is why most new self-builds in Scotland now use a heat pump.

What is the New Build Heat Standard?

The New Build Heat Standard is part of the Building (Scotland) Regulations. It applies to heating, cooling and hot water in new buildings, and in some conversions, where the Building Warrant was applied for on or after 1 April 2024. It does not apply to alterations or extensions to existing buildings.

The Scottish Government amended it with changes introduced on 8 November 2024:

• bioenergy systems, including wood burners, and peat-burning systems are permitted, in homes and other buildings;
• the standard applies to the main heating system, the one that meets space heating and hot water demand in normal operation, so secondary heating such as a stove is allowed.

Emergency heating, frost protection and industrial process heating are also outside the standard. Your designer shows how the heating complies as part of the Building Warrant application.

Air source or ground source heat pump?

On a typical plot, air source is the most common choice. Ground source is worth pricing on larger rural sites, especially where groundworks are happening anyway. Water source heat pumps can suit a site beside a river or loch, subject to consents.

How do you design a new home around a heat pump?

A heat pump works best at lower flow temperatures than a boiler, so the design of the house matters as much as the choice of unit:

• Insulation and airtightness: a well-insulated, airtight envelope reduces the heat the pump has to provide. See sustainable self-build.
• Underfloor heating or larger radiators: both deliver heat well at low temperatures.
• Ventilation: an airtight house needs planned ventilation, often mechanical ventilation with heat recovery (MVHR).
• A hot water cylinder: heat pumps heat water into a cylinder, so plan a plant room or cupboard for it.
• The outdoor unit: position it on the drawings from the start, out of view where possible and away from bedrooms and neighbours.
• The electricity supply: confirm early that the connection can carry a heat pump, any electric car charger and the rest of the house.
• Orientation and glazing: solar gain and shading change the heating load. See designing for the Scottish climate.

Size the heat pump from a proper heat loss calculation for the house, not a rule of thumb, and use an MCS-certified installer.

What should you ask a heat pump installer?

• Are you MCS-certified for this type of heat pump?
• Will you size the system from a room-by-room heat loss calculation for the house as designed?
• What flow temperature is the system designed for, and does that suit our underfloor heating or radiators?
• Where will the outdoor unit go, and have you checked noise at the nearest windows, ours and the neighbours'?
• What size of hot water cylinder do you recommend, and where will it fit?
• What controls are included, and how will you set them up and show us how to use them?
• What warranty and servicing are offered, and who commissions the system at handover?

Get the installer's information early, because the energy assessment and Building Warrant depend on it.

Are there grants for a heat pump in a new build?

Generally not. The Home Energy Scotland Grant and Loan scheme, which offers up to £7,500 in grant funding towards a heat pump, with an extra £1,500 for rural and island homes, is for existing properties that are the owner's only or main home. A new build under construction does not usually qualify. The UK Government's Boiler Upgrade Scheme, which does accept some self-builds, only covers homes in England and Wales.

Home Energy Scotland offers free, impartial advice on 0808 808 2282 and can confirm whether anything applies to your project.

How is a heat pump treated for VAT on a self-build?

If a VAT-registered builder or installer supplies and fits the heat pump as part of building a new home, the work is normally zero-rated, so there is no VAT to pay. If you buy the equipment yourself, you may be able to reclaim the VAT through HMRC's DIY Housebuilders Scheme, but only for eligible items. HMRC's list of building materials includes ground source heat pumps. Air source heat pumps are not named on it, so check with HMRC or your adviser before you assume the VAT can be reclaimed. See reclaiming VAT on a self-build.

Do you need planning permission for a heat pump on a new house?

For a new house, the heat pump is part of the design, so show the outdoor unit on the planning drawings and it is considered with the application. Noise to neighbours and the visual effect in sensitive places, such as conservation areas, are the usual questions. Adding a heat pump to an existing house is different and may fall under permitted development rights.

How we help

ED Design is an architectural design studio in Stirling. We plan the heating strategy with the energy assessor and engineer from the concept stage, so the heat pump, plant space and outdoor unit are part of the design rather than an afterthought. See our self-build homes service.

Sources: Scottish Government: New Build Heat Standard factsheet; Home Energy Scotland: Grant and Loan scheme; GOV.UK: Boiler Upgrade Scheme; HMRC: VAT refunds for DIY housebuilders; HMRC: VAT for builders, new homes. Last reviewed November 2026.

Questions

General guidance for Scotland, not legal, tax, financial or planning advice for your project. Rules change, so check current official guidance and take advice specific to your site before acting.