Building permits for patio covers in Germany: the rules in all 16 federal states

A patio cover makes a terrace usable in any weather. Before planning begins, however, it is worth checking the legal requirements. Whether a permit is needed is regulated differently in each German federal state. INODEQ explains clearly what matters.

Do I need a building permit for my patio cover?

In many federal states, smaller patio covers up to certain dimensions do not require a building permit. Even for permit-free projects, however, basic regulations must be observed, such as minimum distances to neighboring plots and local development plans.

Overview: patio covers and the rules of the federal states

Here is a compact overview of the most common rules by federal state.

Before turning to the specific rules, a few important terms that come up again and again, explained simply:

• Inner zone (Innenbereich): a plot located within a town or village, where houses stand close together and form a continuous built-up area. Simplified rules usually apply here.

• Outer zone (Außenbereich): plots outside built-up areas, for example on the edge of town, in open fields, in forests or on weekend plots. Stricter rules apply here, and many projects require a permit.

• Notification procedure (Kenntnisgabeverfahren or Bauanzeige): a simplified form of building application. The builder informs the authority about the project. If there is no objection within a set period, construction may begin, but only if all regulations are met.

• Building classes (Gebäudeklassen, GK): a classification of buildings by size and use. GK 1 to 3 are usually single-family homes or smaller residential buildings, for which simpler rules often apply.

• Distance to neighbors: this refers to the setback areas (Abstandsflächen), meaning the area between the structure and the property boundary that must remain free. In most cases this is around 3 meters.

To ensure a patio cover is not only beautiful but also legally compliant, the key regulations for each federal state are summarized clearly below:

Baden-Württemberg

• Permit-free up to: 30 m² of floor area (inner zone only)
• Procedure if exceeded: building application, a simplified procedure may be possible
• Distance to neighbors: approx. 3 m
• Special features: permit required in the outer zone

Bavaria

• Permit-free up to: 30 m² of floor area, 3 m depth
• Procedure if exceeded: building application, notification possible where a development plan exists
• Distance to neighbors: approx. 3 m
• Special features: strict inspections, high fines possible

Berlin

• Permit-free up to: 30 m² of floor area, 3 m depth
• Procedure if exceeded: building application (standard procedure)
• Distance to neighbors: approx. 3 m
• Special features: observe development plans in densely built-up districts

Brandenburg

• Permit-free up to: 30 m² of floor area, 4 m depth
• Procedure if exceeded: building application, simplified procedure possible
• Distance to neighbors: approx. 3 m
• Special features: permit required in the outer zone

Bremen

• Permit-free up to: 30 m² of floor area, 3.5 m depth
• Procedure if exceeded: building application, notification possible
• Distance to neighbors: approx. 3 m

Hamburg

• Permit-free up to: 30 m² of floor area, 3 m depth
• Procedure if exceeded: building application, notification possible
• Distance to neighbors: approx. 3 m

Hesse

• Permit-free up to: no fixed limit, ground floor permit-free for small residential buildings (building classes 1 to 3)
• Procedure if exceeded: building application, simplified procedure possible
• Distance to neighbors: approx. 3 m
• Special features: only smaller residential buildings (single- and two-family houses) are permit-free

Mecklenburg-Western Pomerania

• Permit-free up to: 30 m² of floor area, 3 m depth
• Procedure if exceeded: building application, notification possible
• Distance to neighbors: approx. 3 m

Lower Saxony

• Permit-free up to: 30 m² of floor area, 3 m depth
• Procedure if exceeded: building application, simplified procedure possible
• Distance to neighbors: approx. 3 m

North Rhine-Westphalia

• Permit-free up to: 30 m² of floor area, 4.5 m depth
• Procedure if exceeded: building application, permit exemption procedure (Genehmigungsfreistellung) possible
• Distance to neighbors: 3 m (no distance at a shared boundary between terraced or semi-detached houses)
• Special features: no distance required for terraced and semi-detached houses at a shared boundary

Rhineland-Palatinate

• Permit-free up to: 50 m³ of enclosed volume (approx. 20 to 30 m² of floor area)
• Procedure if exceeded: building application, notification possible
• Distance to neighbors: approx. 3 m
• Special features: the outer zone is not permit-free; volume rather than area is decisive

Saarland

• Permit-free up to: 36 m² of floor area, 3 m depth
• Procedure if exceeded: building application, notification possible
• Distance to neighbors: approx. 3 m
• Special features: largest permit-free area in Germany

Saxony

• Permit-free up to: 30 m² of floor area, 3 m depth
• Procedure if exceeded: building application, notification possible
• Distance to neighbors: approx. 3 m

Saxony-Anhalt

• Permit-free up to: 30 m² of floor area, 3 m depth
• Procedure if exceeded: building application, notification possible
• Distance to neighbors: approx. 3 m

Schleswig-Holstein

• Permit-free up to: 30 m² of floor area, 3 m depth
• Procedure if exceeded: building application, notification possible
• Distance to neighbors: approx. 3 m

Thuringia

• Permit-free up to: 30 m² of floor area, 4 m depth
• Procedure if exceeded: building application, simplified procedure possible
• Distance to neighbors: approx. 3 m
• Special features: the outer zone always requires a permit

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In every case, check the local development plans and, if in doubt, seek advice from the responsible building authority at an early stage. That is the safest way forward.

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Key general regulations, even without a permit

Even where no permit is required, some basic building regulations must be observed:

• Setback areas: usually at least 3 m from the property boundary
• Local development plans: always check whether the municipality has specific requirements
• Structural engineering and safety: ensure sufficient load-bearing capacity, especially for wind and snow loads
• Fire protection and heritage protection: special regulations may apply depending on the location

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Do I need my neighbors’ consent?

If the legally required minimum distance is observed, no formal consent is needed. Nevertheless, it is advisable to talk to the neighbors early on. If the minimum distance is to be reduced, for example with terraced houses, written consent is required. In some cases, registering a Baulast (a public-law building obligation) is also advisable.

How do I apply for a building permit?

If a building permit is required, the following documents are submitted to the responsible building authority:

• Application forms
• Site plan (cadastral extract)
• Building drawings (floor plan, section and elevations)
• Structural calculations

As a rule, this requires an architect or civil engineer authorized to submit building documents.

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Is retroactive approval possible?

If the patio cover has already been built and it only becomes clear afterwards that a permit would have been required, approval can be applied for retroactively. However, fines or even demolition may follow if the structure cannot be approved.

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The INODEQ checklist for safe planning

• Check the legal requirements: clarify the regulations for the federal state concerned.
• Contact the building authority: ideally, have the plans confirmed in writing.
• Observe distances: respect the minimum distances or obtain the neighbors’ consent.
• Register the project: submit a building application in good time if required.
• Ensure safety: make sure the patio cover is structurally sound.

Want to know more or need personal support? The INODEQ team is happy to help and accompanies every step of planning and approval reliably.

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