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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.

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