Solar Panel Permits in Switzerland
In Switzerland, solar systems generally do not require planning permission — but not always. Whether you need a building permit depends on the canton, the location of the building and the type of system. This page explains the current rules clearly and simply.
Usually
no permit needed
for standard rooftop systems
26
cantons
each with their own regulations
Notification
instead of permit
sufficient in most cases
No permit required
When does a solar system in Switzerland not need a permit?
Since the revision of the Spatial Planning Act (SPA), rooftop solar systems in Switzerland are generally permit-free if they meet the following conditions:
- The system is building-integrated or mounted parallel to the roof
- It does not exceed the roof ridge
- It does not significantly impair the townscape
- The building is not located in a protected zone
Conclusion: If all these conditions are met, you do not need a building permit — a simple notification to the municipality is sufficient.
Did you know?
In Switzerland, more than 50,000 new solar systems were installed in 2024 — the vast majority without a permit. With proper planning and an experienced installer, the path to your own solar system is straightforward.
Exceptions
When is a permit still required?
In certain situations a planning application is still required — in these cases you must apply before installation:
- The building is a listed historic monument
- The building is in an ISOS townscape protection area
- The system is ground-mounted (e.g. in the garden)
- The system exceeds the roof ridge
- The canton has enacted stricter regulations
In these cases, a planning application must be submitted before installation. Your installer knows the local rules and will assist you.
Cantonal differences
Differences between cantons
Although federal law provides the foundation, cantons have some room for manoeuvre. Some cantons such as Canton Zurich have introduced a solar obligation for new buildings. Other cantons have simplified notification procedures.
Zurich
Solar obligation for new buildings from 2025; rooftop systems otherwise subject to notification
Berne
Simplified notification procedure for standard installations
Geneva
Solar obligation for renovations of larger buildings
Ticino
Strict rules in townscape protection areas
All others
Federal SPA applies: permit-free for standard installations
Important: Always check with your municipality as regulations can vary further at the local level.
Simpler process
What is the notification procedure?
The notification procedure is not a permit procedure — it is far simpler. You inform the municipality before installation that you intend to erect a solar system. The municipality then has a short period to respond.
If you receive no response, the installation is deemed approved. In practice, in most cases the installer submits the notification on your behalf.
The procedure is straightforward and typically takes only a few days to two weeks. Unlike a planning application, it generally incurs no costs.
Submit notification
The installer submits the notification to the municipality — often digitally.
Waiting period (10–30 days)
The municipality reviews the notification. No response = Approved.
Install the system
After the deadline or express approval, installation begins.
Apply for OTS
The one-time subsidy is registered with Pronovo — often by the installer.
Step by step
Step by step: what do you need to do?
From first enquiry to subsidy — four steps to your own solar system. Your installer guides you through the entire process.
Contact an installer
A certified installer assesses your situation and clarifies whether a permit is required. PVPro connects you free of charge.
Notification or planning application
Depending on the situation, the installer submits a notification or planning application to the municipality. They know the local regulations inside out.
Installation
After approval, the system is installed. For permit-free systems, this often happens within a few weeks.
Apply for subsidy
After installation, the one-time subsidy (OTS) is registered with Pronovo — also often handled by the installer.
Everything about the one-time subsidy (OTS)
The one-time subsidy (OTS) from the federal government covers a significant portion of your investment costs. Find out how much you can receive and how to apply.
Special case
Balcony power stations: special rules
Balcony power stations (plug-in solar devices) are also generally permit-free in Switzerland. However, specific rules apply:
- Maximum feed-in power: 600 watts into the household grid
- No professional electrical installation required
- Notification to grid operator recommended
- In condominium units: approval of the owners' association required
More about balcony power stations in Switzerland
Balcony power station guideRequest a quote now — permit check included
Our certified installers know the permit rules in your canton and handle everything — from notification to subsidy.
Request a free quote →Frequently asked questions
Questions about solar permits
Do I need a permit for a rooftop solar system?+
In most cases, no. Rooftop systems mounted parallel to the roof that do not exceed the ridge are generally permit-free in Switzerland and subject only to a notification requirement.
How much does a planning application for a solar system cost?+
Costs vary by municipality and canton but typically range between CHF 200 and CHF 800. For permit-free systems, there are no costs at all.
Who notifies the municipality about the solar installation?+
The certified installer usually handles the notification. PVPro only connects you with certified companies that are experienced in this process.
Does the permit exemption also apply to balcony power stations?+
Balcony power stations (plug-in solar devices) are also generally permit-free in Switzerland, but subject to their own rules regarding output and grid feed-in.
What happens if I install the solar system without notifying the municipality?+
This can cause problems when applying for subsidies and, in the worst case, trigger a retroactive permit requirement. It is always advisable to follow the correct procedure — your installer takes care of this.
More information about solar systems: