Almost nobody needs planning permission to have air conditioning fitted at home in England. That is the honest headline, and for most houses across Middlesbrough and Teesside it is the end of the story. But almost nobody is not the same as nobody, and the exceptions are worth understanding before you book anything. Here is what the rules mean in plain English.
In this guide
The short answer
For a typical house, an outdoor air conditioning unit is usually covered by what is called permitted development. That means permission has already been granted in principle for that kind of work, so you do not have to apply for it yourself. It is not a loophole and it is not a grey area. It is how most small domestic building work gets done in this country.
The catch is that permitted development comes with conditions attached. Meet them and you need nothing at all. Miss one and you are back to applying to your council like anybody else. The conditions cover things like where the unit sits, how big it is, how much noise it makes at the boundary, and what sort of building and area you are in.
What permitted development actually means
People hear the words no planning permission and assume there are no rules. Permitted development is a set of rules, not an absence of them.
- Permission is granted in advance, in law, rather than by your council case by case.
- It applies to houses. Flats and maisonettes are treated differently and you cannot assume the same rights.
- It comes with conditions. If the work breaches any of them, the permission simply does not apply to it.
- It has nothing to do with building regulations or electrical safety, which are separate and still apply regardless.
- A council can withdraw permitted development rights across a defined area, which is why local checking matters.
That last point catches people out. An Article 4 direction is a formal step a council can take to remove permitted development rights in a particular area. It is not common for work of this kind, but it exists, and it is the sort of thing to check rather than assume.
The conditions that matter
We are deliberately not printing exact measurements and thresholds here, and it is worth saying why. The conditions are set out in law, they are specific, and they get amended. A number copied onto a web page and forgotten reads like fact long after it has stopped being one.
What we can tell you is the shape of them, because that has been stable for years. Broadly, the conditions are concerned with:
- Where the unit goes. How close it sits to a boundary, whether it faces a road, and whether it is on a wall, a flat roof or the ground.
- How much of it there is. The size of the unit, and in some cases how many of them you are putting up.
- How much noise reaches the neighbouring property. This is the condition that does most of the work in practice.
- What the building is. Listed buildings and homes in protected areas are handled differently from an ordinary semi.
- What it is for. The permission is about domestic use, not about cooling a business you run from the property.
The current wording lives on gov.uk and on the Planning Portal. Your local council, whether that is Middlesbrough, Stockton on Tees, Redcar and Cleveland, Hartlepool or Darlington, is the body that can tell you how it applies to your actual address. If somebody gives you a confident figure off the top of their head without seeing your house, treat it with suspicion.
When you probably do need permission
There are situations where the answer flips from almost certainly not to you will need to ask. These are the common ones.
- Your home is listed. Almost any external alteration needs consent, and listed building consent is a separate thing again from planning permission.
- You are in a conservation area or a similarly protected area. Restrictions are tighter, particularly on anything visible from the road.
- You live in a flat or a maisonette. Rights that apply to houses do not simply carry across.
- The property is commercial, or you are running a business from home. Different rules apply again.
- There is nowhere on the property that meets the conditions. A small yard with close boundaries occasionally leaves no compliant position.
- Your council has an Article 4 direction covering your street.
None of these mean you cannot have air conditioning. They mean there is a form to fill in first, and a design that has clearly thought about where the unit sits stands a far better chance.
Listed buildings and conservation areas
Teesside has more protected building stock than people expect. There are conservation areas across Middlesbrough, Yarm has a great deal of listed and protected frontage, and there are listed properties scattered around Norton, Guisborough and the villages beyond them.
If that is you, do not let it put you off asking. It is usually not about whether you can have cooling. It is about where the outdoor unit can go and what it can be screened with, which is a design problem, and design problems have answers. It is also a conversation worth having with your council early rather than after the equipment is on order.
Noise is the condition that decides it
Of all the conditions, noise is the one that most often turns a simple job into an awkward one. Not because modern units are loud, because they are not. It is because the question is about the noise at your neighbour’s property, not at yours.
That distinction changes everything about siting. A unit a couple of metres from your own back door might be perfectly acceptable to you and still be the wrong place, because it is also a couple of metres from the wall next door. Move it along the elevation and the same unit stops being a problem.
This is one of the reasons we walk the outside of a house properly at survey instead of pointing at the nearest bit of wall. Getting the siting right at the start costs nothing. Getting it wrong occasionally ends with a complaint to the council and a unit being moved at somebody’s expense.
What this means for a Teesside home
In practice, most of the homes we survey around Middlesbrough, Stockton on Tees, Thornaby, Billingham, Norton and Redcar need no planning application whatsoever. Ordinary house, ordinary street, a sensible place for the outdoor unit, nothing to do.
It gets more interesting in the older terraced stock. A narrow yard with a wall on either side limits your options, and the position that works may not be the obvious one. Newer estate homes in Ingleby Barwick, Yarm and Eaglescliffe usually have more room, though some estates carry their own covenants. Those are a private matter between you and the developer rather than planning law, and they are easy to forget about.
Coastal properties around Redcar, Marske and Saltburn have a further consideration. Salt air is hard on outdoor units, so where the unit sits is partly a planning question and partly a question of how long the thing lasts. Those two answers do not always point at the same wall.
Do not take our word for it
We are an installer, not a planning authority. This article is general information, not advice about your address, and we would rather say so plainly than have you rely on it.
The Planning Portal and gov.uk publish the current permitted development rules and keep them up to date. Your council can give you a formal answer about your property, and if you want certainty in writing, most councils offer a lawful development certificate. It is not free and it is not usually necessary, but for a listed building or a sensitive site it can be worth having.
Anybody who tells you planning is never an issue, without having looked at your house, is guessing.
We check this at survey
This is our job rather than yours. When we survey a home we look at where the outdoor unit can sensibly go, what that means for noise at the boundary, and whether anything about the property changes the answer. If an application is needed, you hear it from us before you commit to anything.
We are based on North Ormsby Road in Middlesbrough and we cover roughly twenty miles around it, taking in Stockton on Tees, Thornaby, Billingham, Norton, Yarm, Eaglescliffe, Ingleby Barwick, Redcar, Marske, Saltburn, Guisborough, Marton, Hartlepool, Peterlee and Darlington. The survey is free and there is no obligation. If the honest answer for your home is that it is complicated, we will tell you that at the start rather than discover it on the day. Give us a ring on 01642 680 873.
