Trees produce vital oxygen, improve the climate, filter dust and pollutants, and provide humidity and movement. They provide habitat for a wide variety of animals, enliven and structure the cityscape and dampen noise. In order to preserve trees, they are particularly protected – especially in heavily populated areas.

If you want to cut down a tree, a permit may be required. If necessary, you must compensate for the felled tree. A felling permit is particularly necessary if trees are subject to special protection.

If a tree is protected as a "protected landscape component" in a built-up district or within an avenue, you must apply for an exemption to fall.