An environmental permit is the official permission that a government organisation, such as the Municipal Executive of a municipality (gemeente), gives for specific activities. Without a permit, the activities cannot go ahead. For example: installing a conservatory or a dormer window, renovating a house, installing solar panels or demolishing a building. You may also need an environmental permit to cut down a tree, to lay an exit road or to start a business activity that might be bad for the environment.
You do not need a permit for some construction or demolition activities. You can do a permit check with the Service Counter for Environmental and Planning Permits (Omgevingsloket) to find out if you need an environmental permit. You can also apply for a permit there.