Air conditioning for flats
By Airva Editorial · Reviewed by Airva Technical Review · Updated 13 July 2026
Flats can absolutely be air conditioned, but two things need checking early: where the outdoor unit goes and who needs to give permission.
Permissions
- Leaseholder or freeholder consent — most flats need the freeholder's or managing agent's permission before installation, separate from any planning rules.
- Building or estate restrictions — some blocks limit external units on balconies or walls.
Outdoor-unit options
- Balcony or external wall — the most common positions.
- No suitable external position — a system without an outdoor unit may be worth considering, though it suits specific situations.
An installer survey confirms what is feasible for your flat. See costs or request an installer match.
Explore more
- Air Conditioning External Unit
- Air Conditioning Installation Process
- Air Conditioning Noise
- Air Conditioning Planning Permission
- Air Conditioning Running Costs
- Air Conditioning Without an Outdoor Unit
- Air-to-Air Heat Pumps
- Bedroom Air Conditioning
- Home Air Conditioning Cost
- Loft Conversion Air Conditioning
- Multi-Split Air Conditioning Systems for the Home
- Split Air Conditioning Systems for the Home