Do you know what applies to your building project?
Building permit, setback distances, registration with the grid operator: what matters depends on your federal state and your municipality. BauErlaubt checks the current rules for your carport, garden shed, wallbox or extension and tells you what to do.
Free first assessment. No sign-up.
Clarity in three steps
No bureaucratic jargon, no paperwork. Just the answer for your case.
- 1
Describe your project
A few simple questions about your project and your location. That's all it takes.
- 2
Rules for your location
We match your project against your state building code and the local requirements.
- 3
Result and checklist
You get a clear first assessment with the points that matter for you and the next steps.
Why not just search for it yourself?
Because the answer online is almost always “it depends”. We tell you what it depends on in your case.
Permit-free doesn't mean rule-free
Even without a permit, setback rules, the local development plan and municipal statutes still apply. Miss them and, in the worst case, you pay to tear it down.
16 states, 16 sets of rules
A carport that can stand permit-free up to 50 m² in Bavaria needs a permit from 30 m² in North Rhine-Westphalia. BauErlaubt knows the limit for your location.
Rules that are actually current
We keep the requirements up to date as building codes change. Every assessment carries a date, not a forum post from years ago.
An answer you can actually act on
Not a vague reply, but a clear assessment with the points that matter for your project and concrete next steps.
Your first assessment
Carport, 3.00 m × 5.00 m (15 m²)
North Rhine-Westphalia
Result
Likely no building permit required
- Size below the limit in your state building code
- Check setback distances to the boundary
- Mind the development plan and local statutes
- Your next steps at a glance
Clear prices, no surprises
The first assessment is free. Detailed reports are a one-time purchase, no subscription, no fine print.
Free check
€0
Your quick first assessment: does your project need a permit or not?
Start for freeBasic report
€17.99one-time
A detailed PDF report with reasoning and the requirements that apply to you.
Choose reportPlus report
€29.99one-time
Report plus concrete preparation and a checklist for the next steps.
Choose Plus
Guides and how-tos
Concrete answers on carports, wallboxes and more, in plain language.
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Fence and privacy screen: What you are allowed to build
Whether your fence or privacy screen is allowed is mostly decided by local rules: the development plan, municipal fencing by-laws, and your federal state's neighbour law. Check these heights and distances before you build.
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Installing a wallbox: what to check first
A wallbox needs no building permit, but it must be registered with the grid operator. Above 11 kW the grid operator must also approve it. Here is what to clarify before installation.
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Terrace roofing: Permit, sizes, and rules
Terrace roofs up to about 30 m² are permit-free in most German federal states. What matters are area, depth, and the distance to your neighbour. These are the sizes and rules that currently apply.
In short
Does BauErlaubt replace a building permit?
No. You get structured guidance for your project. It's not an official decision and not legal advice, but a solid first overview.
Which projects does it cover?
The usual projects around the house: carport, garden shed, terrace roof, extension, wallbox and more.
How do you know what applies to me?
We match your project against your state building code and the local requirements. When a rule changes, we update it.
What does the check cost?
The first assessment is free. Detailed reports start at €17.99 one-time, with no subscription.
Is my data safe?
We treat your details confidentially and don't pass them on. The details are in our privacy policy.
Why not just ask ChatGPT?
You can, and the answers are often good. But they're only as good as your questions, can turn out differently each session, and the double-checking stays with you. BauErlaubt walks you through everything relevant and checks against your state's set of rules, with a dated result.
What happens after the free check?
You see your first assessment right away. If you want more, you get the detailed PDF report with reasoning and checklist, one-time and without a subscription.
Ready for a clear answer?
Check your building project now for free. In minutes, without signing up.
Check your project for free