Usually not. Solar equipment on a dwelling is permitted development in Scotland under Class 6HA, and since a 2024 amendment "dwelling" includes a building containing flats and a flat within one.
That is a genuine improvement worth knowing about, because most of what is written online predates it. Before that change, solar permitted development covered houses and not flats at all — so a lot of well-meaning advice is gloomier than the law now is.
What Class 6HA permits
The installation, alteration or replacement of solar photovoltaic or solar thermal equipment on a dwelling, without a planning application. A balcony array is small, and on the face of it sits comfortably inside that.
Four things take you outside it, and they are absolute rather than matters of degree.
| Exclusion | What it means for a balcony |
|---|---|
| Protrudes more than 1 metre | From the outer surface of the wall. A railing-mounted panel is nowhere near this. |
| Listed building, or in its curtilage | Applies to a great many city-centre flats. Assume you need consent. |
| World Heritage Site | Narrow, but Edinburgh’s Old and New Towns are one. |
| Conservation area, on the principal elevation or a road-fronting side elevation | The one that actually catches balconies — see below. |
Conservation areas — the one that catches balconies
A balcony is on the front or the side of a building almost by definition. That is what a balcony is. So the conservation-area exclusion, which is a mild inconvenience for a house with a back roof slope, is the central question for a flat.
If your building is in a conservation area and the balcony faces a road, permitted development does not cover you and you need to apply. That is a normal outcome and not a refusal — it adds a step, a fee and some weeks.
If the balcony is at the back, away from any road, you may well be fine even in a conservation area. It is worth establishing which you are before you assume the worst.
If your building is listed
Assume you need listed building consent as well as, potentially, planning permission, and start early. A great many tenement flats in Scottish cities are in listed buildings, often without their occupants realising.
This is the one case where we would gently suggest checking before you get attached to the idea. Consent for a visible external addition to a listed building is not a formality, and the answer may be no.
How to check your own address
Two free lookups, five minutes, before you spend anything.
For listing: Historic Environment Scotland publishes a searchable map of listed buildings and can be checked by address. For conservation areas: your council publishes the boundaries, usually as a map on its planning pages — and boundaries are irregular, so check the address rather than assuming from the street.
We check both at the quote stage and will tell you what we find, but it is your address and you can establish it faster than we can.
One question we cannot answer for you, and will not pretend to. Class 6HA plainly covers a fixed installation — but whether a clamp-on panel that comes off without a trace counts as "installation on a dwelling", or as development at all, is not settled by the legislation and may be answered differently by different councils. If it matters to your decision, ask your council’s planning duty officer: it is a free question about a specific address and they will usually answer it in a phone call.
England, Wales and Northern Ireland
Different regimes, and we do not install outside Scotland, so we are not the right people to tell you how they work in detail.
The broad shape is similar — microgeneration equipment on a house is generally permitted development, with tighter rules for flats, conservation areas and listed buildings — but the class numbers, the thresholds and the exclusions are not the same. Ask your local planning authority, which will answer a straightforward question about a specific address for free.
What happens if you fit it without permission
Where permission was needed, the council can require it to be removed, and can pursue enforcement. In practice a small removable panel is unlikely to be anyone’s enforcement priority — but "unlikely to be noticed" is not the same as "allowed", and it is a poor position to be in with a landlord, a factor or a buyer.
The practical risk is not usually the council at all. It is the moment you sell or the moment your landlord finds out, and the answer to "did you have consent?" is no.
Frequently asked
- Do you apply for planning permission for me?
- No. Consent is yours to obtain, and our terms say so. We will tell you at the quote stage if your address is listed or in a conservation area, and we will supply whatever technical detail an application needs, but the application itself is yours.
- How long does an application take?
- A householder application in Scotland has a statutory target of eight weeks, and straightforward ones often land inside that. Plan around it rather than against it — this is usually the longest lead time in the whole project, alongside getting a factor to answer.
- Is a Juliet balcony treated differently?
- Not by the legislation, which cares about where the equipment is and what it is attached to rather than what the balcony is called. The practical difference is size: a Juliet usually takes one panel, and we do not currently sell a one-panel system.
- My neighbour has panels and did not apply. Does that help me?
- Not really. They may be outside a conservation area boundary you are inside, they may have applied and you did not notice, or they may not have had permission. None of the three is a defence, and the third is not a precedent.