When you're planning to rebuild your home or change the layout of your apartment, the katastrální úřad, úřad, který vedou seznam všech nemovitostí v Česku a jejich technické údaje. Also known as katastr nemovitostí, it is the first place you need to check before you start any construction work. Without correct data from the cadastral office, you won’t get a building permit, and even small changes like moving a wall can turn into a legal mess.
Many people think the katastrální úřad only handles land sales or property transfers, but it’s much more than that. If you want to extend your kitchen, build a terrace, or even change the number of rooms in your apartment, you need to know the exact boundaries and measurements of your property. The katastrální mapy, digitální mapy, které ukazují přesné hranice pozemků a budov tell you whether your planned change fits within the legal limits. And if you’re buying a flat, the výměry nemovitosti, přesné rozměry bytu podle katastru, ne podle prodejního plánu might be completely different from what the seller showed you. That’s why checking the official records is not optional—it’s your protection.
Don’t wait until you’re halfway through your renovation to find out your project doesn’t match the official records. The stavební povolení, formální souhlas úřadu, který umožňuje začít stavební práce requires exact data from the cadastral office. If your plans don’t align with the registered size or location of your property, your application will be rejected. And if you already built something without approval, you could face fines or even be forced to tear it down. The good news? Getting the right documents from the katastrální úřad is simple. You can request a copy of the cadastral map or property record online, often for just a few hundred crowns.
What you’ll find in the posts below are real-life examples of how people handled property changes in Brno and beyond. From checking land boundaries before installing a new fence, to understanding why a kitchen extension failed because the room size didn’t match the cadastral data, these stories show exactly what to do—and what to avoid. Whether you’re renovating your apartment, buying a house, or just wondering why your neighbor’s shed got approved and yours didn’t, the answers are here.
