Air conditioning for flats
By Airva Editorial Team · 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 for New-Build Homes
- Air Conditioning for Period & Listed Homes
- Air Conditioning Installation Process
- Air Conditioning Noise
- Air Conditioning Planning Permission
- Air Conditioning Running Costs Explained (UK)
- Air Conditioning That Heats and Cools
- Air Conditioning Without an Outdoor Unit
- Air-to-Air Heat Pumps
- Bedroom Air Conditioning
- Conservatory Air Conditioning
- Ducted Air Conditioning for the Home
- Home Air Conditioning Cost
- Home Air Conditioning Maintenance & Servicing
- Home Office Air Conditioning
- Loft Conversion Air Conditioning
- Multi-Split Air Conditioning Systems for the Home
- Split Air Conditioning Systems for the Home
- Whole-House Air Conditioning