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Ben Wilshere's avatar

I thought air conditioning was made a permitted development last year. Are Camden just using some of the caveats (e.g. the exception that you may need permission if the unit will be too close to the property boundary) to effectively skirt this change?

Michael Hill's avatar

This is true for Air Source Heat Pumps, which I think it is fair enough to categorise as a type of air conditioning. It was a good policy change and Air Source Heat Pumps are a great technology. But they are much more expensive than other types of air conditioning which are heavily restricted in large parts of the country and in new homes.

Ben Wilshere's avatar

Makes sense. I also did some digging for Camden specifically and it is in fact very difficult to get an ASHP installed there without planning permission, because of exemptions in the policy for conservation areas and flats above street level. So your point stands for ASHPs as well!

Michael Hill's avatar

Yeh Camden is about 40% conservation area, and a lot of flats!

David Chambers's avatar

Surely the whole point of planning permission is that everything is banned unless you can get an exemption? It would be more accurate to say that everything is banned than that air-conditioning isn't.

J Risner's avatar

Most places in the UK would not require planning permission for air conditioning to be installed

Lee's avatar

Have you been to a hot country where AC compressors are part of the fabric of urban architecture? It's cool relief for those inside, but ironically made even hotter (and noisier) outside where the compressors release the heat generated during the cooling process.

Michael Hill's avatar

Yes. I lived for many years in places where over 30 degrees was the norm for 4 months a year (China and Korea). Europeans are mocked just as much as these countries for our lack of air conditioning as we are by Americans, we just don’t notice because it is in a foreign language. The heat island effects of air conditioning are in the order of 0.5-2 degrees for a major city if you make some very unlikely assumptions- e.g. every single building having air conditioning and it being on 24/7 for weeks on end. Even so I would take being 2 degrees warmer when out and about during a heatwave to be 10 degrees cooler while I am inside.

Avelli's avatar
15hEdited

Thank you. Im in a ground floor ex council flat with a private garden ideal to house the external unit but because the council own the building they have the final say if I can have an ASHP installed or not so I am not too optimistic they will agree. Many are renters, live in conservation areas, ex council flats or even council tenants etc so in effect it is banned for many.

Ben Hall's avatar

I’m really grateful for this post because until read it I didn’t know why people were saying it’s banned. I have a portable AC and plan to get something installed in future; my dad has an installed AC and as far as I can tell neither of us have any restrictions in getting them where we are in the UK.

Though I take your point about local councils effectively banning them, when I hear “banned” I implicitly understand “most of the time, nationally” not “in some places, depending on local government”. I don’t think this is an unreasonable way of understand the situation- I’ve heard horror stories about American HOA, who can appear to have powers that would make a UK council blush, but I wouldn’t project them to saying that untidy lawns were banned in America.

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Michael Hill's avatar

Aircon units need a small outlet on the outside of the building. Lots of councils accept this is not a big deal and will let you do this without planning permission. Camden Council is not one of them!

J Risner's avatar

Well, ideally they need an external condenser, like an ASHP does.

Interestingly, ASHPs (which is all "air-conditioning" is) can have permitted development in Camden... Just call it an ASHP and you'll be fine

Matthew Hutton's avatar

Where’s the evidence Camden has these policies? Because I can’t see any evidence of it and it appears people have installed AC according to a friend?

Also if it’s under 0.6m3 it doesn’t need permission even on a flat - and that’s pretty big.

Michael Hill's avatar

That's only for an air source heat pump. This was a very good policy change from the government. But does not apply to anything solely for the purpose of cooling. ASHPs are great, but restrictions on the cheapest and easiest to install forms of AC remain. Camden Policy CC2 sets out the cooling hierarchy but can be tricky to find (in a several hundred page document that is difficult to search, transparency in action). This link covers most of it. https://www.camden.gov.uk/documents/20142/4823269/Home+Improvements+CPG+Jan+2021.pdf

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Michael Hill's avatar

That is the free standing inefficient unit! They are not very good for cooling, your energy bill, the electricity grid or (depending on how much fossil fuels we are burning for electricity at the time of use) the planet!

Michael Hill's avatar

But they don't need any permission so they are very common in areas which prevent better systems.