The Official Site Plan – What Is It Used For?

The difference between site plan and cadastral map

The official site plan and the cadastral map are part of a building application. In the cadastral map, certain information about all properties (numbered parcels with their boundaries and buildings, etc.) is created true to scale. There are field maps (also called real estate or cadastral maps) covering the entire federal territory. The site plan is created on the basis of an excerpt from the cadastral map. In the case of a construction project, an official site plan for the property to be built on and its immediate surroundings is prepared and must meet various legal requirements.

 What does a site plan say and what does it look like?

In terms of structure, the Site plan consists of a written and a drawn part, which is created on the basis of the data from a current excerpt from the real estate map (also called cadastral map or field map). Since the site plans vary depending on the federal state, the site plan of Bavaria is explained here as an example. The excerpt must show the building plot and the neighboring plots within a radius of at least 50 m. The scale must be greater than or equal to 1:1000, sometimes 1:500. The building site is to be marked on the site plan; In addition, the excerpt must be labeled with the name of the client, the designation of the building project and the date of the associated building application or the documents in accordance with Art. 58 Para. 3 Sentence 1 Half Sentence 2 Bay BO. These are, for example, for Bayern im§7 of the Bavarian Building Regulations and specify the following points, among others:

  • The scale and north direction
  • The cadastral areas of the building plot, parcel boundaries of the building plot and neighboring plots
  • The designation of the building plot and the neighboring plots of land as listed in the land register with the respective owner information
  • The existing structures on the building site and the neighboring properties with details of their use, ridge and external wall height, roof shape and the type of external walls and roofing
  • Architectural monuments including ensembles as well as protected parts of nature and landscape on the building site and on the neighboring sites
  • Pipes used for public water supply, public water, gas, electricity, heat, public sewage disposal or telecommunications and pipelines used for the long-distance transport of substances, as well as their distances from the planned structure
  • The adjacent public traffic areas with details of the width, the street class and the altitude with reference to the altitude reference system
  • Hydrants and other water extraction points for the fire brigade
  • The determination of a development plan for the building plot on the land areas that can be built on and the land areas that cannot be built on
  • The planned structural system, stating the external dimensions, the shape of the roof and the elevation of the ground floor to the street
  • The elevation of the corners of the building plot and the corners of the planned system with reference to the height reference system
  • The breakdown of the undeveloped areas, stating the location and width of the entrances and exits, the number, location and size of the children’s playgrounds, the parking spaces and the areas for the fire brigade
  • The distances between the planned physical structure and other physical structures on other properties, to the neighboring boundaries and the distances between the planned physical structures and the existing structures on the building site and the neighboring properties
  • The distances between the planned structure and surface waters
  • Protected trees

In order to obtain all the requirements and those of the other federal states, it is necessary to look at the legal texts of the individual federal states.

Who decides on the content of the site plan?

In principle, the site plan is the responsibility of the federal states; the requirements are regulated in the building regulations of the individual federal states. In this respect, the content of the site plan may vary.

In addition, it should be noted that there are different types of site plans, the simple, the official and the qualified site plan. The information density differs depending on which site plan is used.

Who creates the site plan or surveys the property?

The site plan is required for construction projects; this is created by a publicly appointed surveyor and is the basis of a later building application. After the property has been surveyed, the surveying facts are certified with a seal and signature.

If you have any questions or are looking for the right broker, we at Usasiteplans will be happy to advise you free of charge and without obligation.

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