When do you need a building permit?
When do you need a building permit?
In recent years, there has been a lot of public discussion about the regulation of construction and its simplification, but the end result seems to be that most modifications nowadays require some kind of permit. Especially housing companies have become more stringent with renovation permits, which is also in the shareholder's interest, to avoid unauthorized renovations in the company's premises, which carry the risk of construction errors without supervision. In this article, we go through a few common situations where permits are needed.
However, keep in mind that there can be city-specific variations in the following situations. The processing time for a permit also varies a lot, typically being significantly slower in the capital region than in smaller municipalities.
New construction:
Whenever you build something new, you need a permit. Whether it's a large apartment building or a 10 square meter extension to a detached house. Did you know that even a covered terrace of a detached house may require a building permit? The type of permit depends on the locality, and it can be either an action permit or a building permit. Action permits usually require facade and site drawings.
Detached houses:
Changes in the placement or size of window openings, as well as changes in the shape or material of the roof – for instance, all these usually require a building permit. Changes to the facade can affect the appearance and structural integrity of the building. The installation of a fireplace and changes to chimneys usually also require a permit. For example, when a new fireplace is installed in an old building, and especially if a completely new chimney is installed. Depending on the municipality, this may require either a fireplace, action, or building permit.
In renovations and space alterations:
The need for a permit usually relates to load-bearing structures or changes in the use of space. For example, in old apartment buildings, relocating water and sewage points within the apartment may lead to the need for structural design due to load-bearing intermediate floor beams. Holes should not be drilled in load-bearing structures without a statement from a structural engineer.
Converting an attic or hobby space into living space requires a permit. Challenges may arise in implementing insulation and ventilation according to regulations in an old house. It is absolutely advisable to consult a professional before starting the project to get a realistic picture of the required modifications.
Housing companies may also have their own requirements, even if an actual building permit is not needed. These may relate to, for example, step sound insulation or ventilation.
Remember that the need for a building permit also always means the need for qualified planners. Therefore, allocate both time and budget for the planning of your project!
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