What is a site plan

The site plan

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Last update: September 8th, 2020

The site plan is the graphic representation of an object in relation to its surroundings. These true-to-scale representations can be city plans or property maps, for example. A particularly relevant form of the site plan is required if property owners want to submit a building application. But how expensive is an official site plan and when do you need one? In this advisory article you will find out which versions are needed for which occasion and everything that is important.

1. What is a site plan?

The official or cadastral site plan is in accordance with the German building code important part of the building templates. These are the documents that are required for a building application or other building regulation applications.

The basis for the site plan is a current extract from the cadastral map or the property map. The real estate map forms the representative part of the real estate cadastre. This consists of a comprehensive list of all parcels in a country and their description. Using this so-called land map, a publicly appointed surveyor, an authority equivalent to him or a sworn specialist in surveying can then create an official site plan. The site plan basically consists of a written and a drawing part.

What is the difference between a site plan and a land map?

In order to apply for a building permit, you need both a land map and an official site plan as part of the building application. While a land map only contains a rough representation of the property and its structures, the official site plan is created individually and up-to-date for a specific building plot by a publicly appointed surveyor.

A parcel is a limited part of the earth's surface that is provided with a specific identification number. The field numbers of different parcels can be saved in official real estate cadastre information system (ALKIS) can be viewed. A plot of land can be formed from several parcels if they belong to an owner and are recorded on a land register sheet.


2. What are the components of an official site plan?

If a building project is planned, a simple or a qualified building plan must be submitted with the building application in accordance with the building submission ordinance (BauVorlVO). In general, both types of site plan show the outline of the planned building in the plan view of the property in the drawing part to scale (usually 1: 1000 or 1: 500) and thus inserted into its surroundings.

The components: simple map

The simple site plan can be created in full by the draftsman on a certified extract from the property map. Basically it contains the following components:

  • Information on the scale and the position in relation to the compass direction

  • Designation of the building plot by municipality, street, house number, land register, parcel, hallway, parcel

  • Details of the owner / leaseholder

  • Area of ​​the building plot

  • Cadastral boundaries of the building plot / neighboring plots

  • Building stock on the building plot / the neighboring plots

  • Notes on building loads (property register)

The components: qualified site plan

The relevant building permit authority decides which type of site plan is to be attached to a building application. As a rule, a qualified site plan is required for border development or for compliance with border distances. It contains additional information for the building inspectorate assessment:

  • Cadastral dimensions of the building plot

  • Information on the reliability of borders / their recognizability

  • Owner of the neighboring properties

  • Information on the completeness of the building stock

In addition, a new drawing will be made based on old cadastral measurements.

When is a qualified site plan worthwhile?

A qualified official site plan offers greater legal certainty and is required by most building permit authorities for a building project. However, it may also make sense to apply for a qualified site plan for other prerequisites:

  1. If intensive development is planned: If the property is to be used extensively in the construction project, the property boundaries must be measured very accurately. However, the digital land map from the cadastre often shows inaccuracies at the boundary and building corner points.

  2. The subdivision of the building area is still pending: This means that a building area is being marketed that has not yet been divided into building plots, or an area is being built that has not yet been measured as a building area.


3. What are the costs for creating a site map?

What does a site plan cost? There is a charge to have a site map drawn up. The costs are based on the production value of the planned construction project and the preparation documents. They are differentiated depending on the design of the site plan required for the project:

Table: Costs of a simple and qualified site plan

Value of the construction project (euros)Simple mapQualified site plan
50 00080250
300 000150480
600 000250840
1 500 0003801 200
2 500 0005201 580
over 2,500,0000.33 * √ value1 * √ value

4. Where can I get a map?

The site plan can be commissioned from the publicly appointed surveying engineers in the respective federal state. The site plan is created on the basis of the evidence from the real estate cadastre by local surveying and must be certified by a surveying agency.

The information, recommendations and legal explanations in our guide represent exclusively non-binding information without any guarantee or claim to correctness and completeness. It is not legal advice in the actual sense and cannot and should not replace it. If necessary, we would be happy to recommend a suitable lawyer ([email protected]).