We first examine which documents are actually essential for the specific question at hand and which can be replaced by our own measurements or research.

Missing building plans can often be requested from the responsible building authority, which may take varying amounts of time depending on the municipality.

In exceptional cases, a valuation can also be carried out subject to certain limitations and explicit assumptions regarding missing information, although this may reduce the reliability of the appraisal report.

In cases of particularly incomplete documentation, an independent survey by a publicly appointed surveying engineer may be required in exceptional circumstances, resulting in additional costs and time.

In such cases, we transparently indicate which assumptions were made and how this affects the reliability of the result.