Flats
Heat pumps for flats
Flats can have heat pumps — the practical questions are unit placement and, for leaseholders, permission. Here's where they work best.
Heat pumps for: Detached Semi-detached Terraced Cottage Victorian New build Bungalow Flat
Flats are the most variable property type for heat pumps. Many can have one, but it depends on two practical things: where the outdoor unit can physically go, and — for leaseholders — whether the freeholder agrees. Ground-floor and garden flats tend to be most straightforward.
What matters most for flats
- Unit placement. The outdoor unit needs an external wall or outdoor space with airflow. Ground-floor and garden flats usually have this; upper-floor flats are harder.
- Permission. Leaseholders generally need freeholder consent. We can capture your details and an installer can advise on the process.
- Air-to-air options. Where a full system isn't practical, air-to-air heat pumps are sometimes an option, though they don't provide hot water.
Typical size and cost
| Typical system size | Before grant | After £7,500 grant |
|---|---|---|
| 4–5 kW | £9,000–£12,000 | £1,500–£4,500 |
Get a tailored figure with the cost calculator, or read the full cost guide.
Common questions
Can a flat have a heat pump?
Often yes, depending on where the outdoor unit can go and, for leaseholders, freeholder permission. Ground-floor and garden flats are usually most straightforward; upper-floor flats are harder.
What size heat pump for a flat?
Typically 4–5 kW, as flats are smaller and often better insulated by surrounding properties. A survey confirms the exact size.
How much does a heat pump cost for a flat?
Around £9,000–£12,000 before the grant, or roughly £1,500–£4,500 after the £7,500 grant — often the lowest net cost of any property type.
Do I need permission to fit a heat pump in a flat?
Leaseholders generally need the freeholder's consent. It's worth raising early; an installer can help explain the case to your freeholder.
See the cost for your home
The calculator sizes a system for your property type and applies the grant — an instant estimate, no contact details needed.