Planning rules change and differ across England, Wales, Scotland and Northern Ireland. Check with your local planning authority before committing to work.
Questions that commonly matter
- Is the property listed or in a conservation area?
- Is it leasehold, and is freeholder consent required?
- Where will the outdoor unit be visible from?
- How close is it to a neighbour or boundary?
- What noise will the proposed model create?
- Is the system capable of heating as well as cooling?
- Are there already external units or other relevant equipment?
Ask for model-specific information
A planning enquiry is more useful when it includes the proposed unit dimensions, sound-power data, location, mounting method and distance to nearby windows and boundaries.
Get the answer in writing
If permission or prior approval may be needed, ask the local authority or a qualified planning professional. Do not rely solely on a general statement that air conditioning is always permitted development.