Obtain approval for a patio addition
Building permit for a covered patio extension, a pergola, or a patio with a structural roof.
How to proceed
- 1
Perform the GRZ calculation
Verify that the floor area ratio is still being met after the addition.
- 2
Submit a building permit application or a notice of intent
Procedures vary depending on the state and the size of the business.
- 3
Wait for the building permit and build the addition
Landscaping may be required as a compensatory measure.
Responsible authority
The authority of your main place of residence is responsible.Find authority →
Fees
Varies by case
Processing time
approx. 3 weeks
Official: max. approx. 1 months
Online application
In person or by post
Common mistakes
- • Neighbor not notified in a timely manner (risk of objection)
- • Patio built without verifying whether the floor area ratio was exceeded
Common reasons for rejection
- • Exceeding the permitted floor area ratio (FAR exceeded)
- • Required clearance distances from neighbors not maintained
You can usually file an objection against a rejection.
The essentials before applying
Who is eligible?
Homeowners planning to add a patio.
Income limit
The limit varies by household and region – see the table at the responsible authority or in the application assistant.
Processing time
Nationwide: approx. approx. 3 weeks
Success rate
approx. 78.0 % (estimate)
Most common mistakes
- •Neighbor not notified in a timely manner (risk of objection)
- •Patio built without verifying whether the floor area ratio was exceeded
Common reasons for rejection
- •Exceeding the permitted floor area ratio (FAR exceeded)
- •Required clearance distances from neighbors not maintained
Alternatives
- Check related services in the application assistant
- Use social counselling before applying
If rejected
File a written objection within 30 days – with reasons why the decision is wrong and any missing evidence.