Interesting Facts About The Official Site Plan

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An official site plan is one of the most important documents when it comes to applying for a building permit or construction financing. In addition, it is of course also a useful supplement for the marketing of real estate. In the following, we explain the most important issues relating to the official site plan.

What is an official site plan?

An official site plan (also called cadastral site plan) is a true-to-scale, technical drawing and one of the most important prerequisites for building permit procedures. It is the first building template for the urban planning preliminary decision and the building notification procedure, as well as for the building permit. The site plan is based on the current excerpt from the cadastre or real estate map. The cadastral or real estate map is a comprehensive directory of all parcels of land in a country, which also contains a precise description of the parcels.

Definition “parcel”

The parcel is the smallest unit in a real estate cadastre. It describes an officially measured and geometrically determined part of the earth’s surface. In the past, a piece of land was also called a “cadastral parcel” or “parcel”. On the one hand, the location of your property is recorded precisely. On the other hand, this also counts as official proof of ownership of the land.

An official Site plan always includes a written and a graphic part. A site plan becomes an official site plan when it is certified by a publicly appointed surveyor.


Do not confuse the field map with the site plan. If you want to apply for a building permit, you need both the official site plan and the corresponding cadastral map. The cadastral map is, so to speak, a rough property summary including the buildings. An official site plan is drawn up individually for a specific property and officially certified. The cadastral map is the basis for creating a site plan.

What is the content of an official site plan?

The site plan always consists of two parts, includes a written and a graphic section and should not be older than six months. The content can vary from state to state, depending on the relevant building inspection regulation. A distinction is made between a simple and a qualified site plan.

The simple map

A simple site plan is created on a certified excerpt from the property map and contains the following information:

  • Scale and location of the property to the north
  • Precise designation of the property with place, street, house number and land register entry number, district, field and parcel
  • Information on the owner or the person entitled to heritable building rights
  • Development plan
  • Permitted Use
  • Total area of ​​the property
  • Any existing building encumbrances
  • Areas on the property that can or cannot be built over
  • Base areas / dimensions / floor areas

The qualified site plan

A qualified site plan is required when it comes to border development and compliance with border distances. In addition to the above information, it also contains the following points:

  • Boundaries of the property or exact dimensions of the property
  • Designation of the neighboring properties and information on the respective owners
  • public traffic areas bordering the property
  • Information on the completeness of the current building stock (if available)
  • Information on the reliability of property boundaries and their recognizability


In principle, the responsible building authority decides whether a simple or a qualified official site plan is required for a building project. Therefore, find out in advance which variant is required for your project. In principle, a qualified official site plan always offers greater legal certainty.

Content in the graphic part

The graphic part is usually created on a scale of 1:200 or 1:500 in both the simple and the qualified site plan and contains the following details:

  • Outline of the planned building project
  • Roof shape with pitched roof
  • spacers
  • insertion into the environment

Who creates a site plan?

As already mentioned, an official site plan is based on the surveying documents that are archived at the land registry office. In addition, planning and building law information from the relevant planning and building authorities is incorporated. Of course, you can also inspect your building plot and note relevant information about the condition. From this, an architect or another authorized person creates a so-called preliminary plan or draft. This is the basis on which a publicly appointed surveyor, a sworn specialist or an equivalent authority prepares the site plan on a scale of 1:200 or 1:500. The certification with a seal and signature turns it into an official site plan.

How much does an official site plan cost?

Unfortunately, there is no general answer to this question. Since each federal state has its own scale of fees for surveying tasks, the costs for a site plan can vary greatly. As a rule, the following points play a role in pricing:

  • Federal State
  • Applicable Fee Schedule
  • plot size
  • ground value
  • Length of property lines
  • Fees incurred in obtaining documents

Application areas for the official site plan

As described at the beginning, a building permit procedure is not possible without an official site plan. It is also required for construction financing inquiries. Such a technical drawing is also required when selling existing properties and is an important part of official applications.

In addition, the site plan is ideal for marketing your property as part of the real estate exposé or for a real estate advertisement. In this way, potential buyers get an overview and can better imagine whether the property is suitable or not. A meaningful site plan in a section that goes beyond the property also shows how the environment and the infrastructure are.

We would be happy to assist you in creating a site plan for your property.

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