Background
#The PV permit process in Canton Glarus depends on the site, the building envelope and how well the system is adapted.
For sufficiently adapted systems on unprotected roofs and facades, the basic rule is a notification duty; the municipal notification form must be filed with the competent municipal building authority at least 30 days before work starts. On roofs in building and agricultural zones and in certain zones outside the building zone, notification is sufficient if the system is sufficiently adapted, while roof systems in work zones can be notified even without that adaptation.
A building application is required for cultural and natural objects, protected townscapes, forests, water corridors or freestanding systems. Photovoltaic systems from 1,000 kW also require an energy-law permit under Art. 5 para. 2 kEnG, issued as part of the building permit procedure; the Canton Glarus GeoViewer helps with the initial classification.
For your roof
What fits on your roof?
Enter your address to see roof area, yield and a guide price from federal data. We then clarify notification or permit with your municipality.
Free and non-binding · no unsolicited calls
Rather talk directly? +41 78 615 90 58
What applies in the canton of Glarus
#The site is the first decision point: roof systems in building and agricultural zones or in other zones outside the building zone are subject to notification when sufficiently adapted; forests and water corridors are excluded. For roofs in work zones, notification is sufficient even when the system is not sufficiently adapted.
The design must be demonstrated for the actual roof. On a pitched roof, the system may project no more than 20 cm perpendicular to the roof surface, may not extend beyond it when viewed from above, and must be low-reflection and compact. On a flat roof, it may rise no more than 1 m above the roof rim and must be set back so it is not visible from below at 45 degrees.
Protection interests move the project out of the notification path: systems on cultural or natural monuments, in protected townscapes or on protected buildings always require a building permit. The guidance points to the GeoViewer layers for nature and landscape protection and for heritage protection, ISOS and KGS to make that distinction.
The cantonal process has to be understood in two layers: the law does not provide an explicit notification procedure under Art. 18a RPG. In practice, the municipal "notification form for solar systems" and the additional documents must be filed with the municipal building authority at least 30 days before work starts; the municipality normally confirms the next steps within one week.
For a full building application, plan quality matters: the cantonal guidance lists a 1:500 site plan with dimensioned system, roof plan or facade view, roof or facade section, building description and manufacturer information. A project outside the building zone also requires the questionnaire for projects outside the building zone.
System output determines an additional layer: under Art. 5 para. 2 kEnG, photovoltaic systems from 1,000 kW need an energy-law permit in addition to the building-law permit. The energy permit is issued as part of the building permit procedure, so the guidance says no separate filing is required; work may begin only after the permit is legally effective.
The process in six steps
#Tick off for your project
Check the site in GeoViewer
municipality, building or agricultural zone, zone outside the building zone, forest and water corridor, and cultural and natural objects. The "building permit requirement for solar systems" map shows whether the site is marked as a notification or permit case.
Classify the design
for a pitched roof document the 20 cm projection, no overhang beyond the roof surface, low reflectivity and compact arrangement; for a flat roof demonstrate the 1 m roof-rim limit and the 45-degree visibility test from below. For facades, check the contiguous, uniform areas listed in the guidance and the maximum 20 cm facade distance.
Choose the procedure
use the municipality's form for a notification case; prepare the cantonal building application for protected objects, forests, water corridors, freestanding systems or systems that are not sufficiently adapted. For systems outside the building zone, include the out-of-zone questionnaire, and for systems above 1,000 kW plan the additional energy-law review.
Compile consistent documents
the building application should include the form, building description, product description, 1:500 site plan, roof plan or facade view, and a section showing the system components. For the municipality of Glarus, the guidance additionally asks for total area, total output in kWp and expected production in kWh per year.
File the notification completely
the municipal form and additional documents must reach the competent municipal building authority at least 30 days before work starts. According to the guidance, the municipality normally confirms the next steps within one week; for a building application, wait until the permit is legally effective.
Coordinate fire and lightning protection
for permit applications, the municipality obtains the fire authority's opinion. Where a lightning protection system exists, the PV system must be integrated into it; the cantonal review of these points does not replace project-specific execution planning.
Checked for your roof, not just read up on
What fits on your roof?
Enter your address to see roof area, yield and a guide price from federal data. We then clarify notification or permit with your municipality.
Free and non-binding · no unsolicited calls
Rather talk directly? +41 78 615 90 58
Frequently asked questions
#Sources
#The responsible authorities are decisive. Always verify binding details – amounts, deadlines and conditions – for your specific property against the current status of the respective authority.