The dimensions of a building are a set of parameters that determine its size and external form. Simply put: these are the dimensions of an object that can be measured from the outside, and which have not only visual, but also legal and functional significance. The dimensions show how large the building can be and how it will fit into its surroundings.
In practice, the dimensions of the building include:
- height (measured most often from ground level to ridge),
- width of the front facade,
- length and depth of the building,
- number of storeys,
- angle of inclination of the roof,
- Sometimes also maximum built-up area.
These parameters are not arbitrary, their scope is determined by planning documents, i.e. local zoning plan (MPZP) or decision on building conditions (WZ). This is where you will find entries such as: “the dimensions of the new building should be close to the existing one in the neighborhood” or “the height of the building up to 9 m”. When designing a house, you need to adapt to them, otherwise the office may refuse to issue a building permit.
What does it mean that the dimensions of the building are to be “close to the neighbors”? It is a record intended to protect the spatial order, that is, to ensure that the new building does not dominate the environment. An example? If the area is dominated by one-story houses with pitched roofs, it will be difficult to get permission for a modern villa with a flat roof and two full floors. The dimensions must fit into the scale and nature of the building. Imagine the situation: the investor chooses a ready-made project with a wide front and a high roof. Everything looks good - until the office rejects the application for a permit, because the building does not comply with the provisions of the General Meeting. You have to change the design, which means additional time and costs. And it would be enough to carefully analyze the planning requirements beforehand.
There are also questions:
Can the office not issue a permit because of the overall dimensions?
Yes - if the design exceeds the permissible dimensions or violates the provisions of the WZ/MPZP.
Is it possible to change the dimensions of the building after obtaining the WZ?
Only to a limited extent - significant deviations require a new decision or change of documentation.
Dimensions affect not only compliance with regulations, but also relations with neighboring plots. A building that is too tall or extended can lead to shading of the neighboring property, limiting the view or feeling “built-up”. Therefore, a good design takes into account not only what is allowed to be built, but also what is worth building to avoid conflicts and create a coherent space.
