Opinions require special expertise on the construction mistakes are made we know that often, which lead to poor construction work. Not infrequently must then experts assess the defects or damage after the impairment occurred and determine value. But also there is incorrect assessments again and again to determine, which continued even up in the construction processes before the courts. To give the experts working in the construction sector and real estate evaluation, as well as the lawyers dealing with deficiency – and claims assistance, two more practice-related documents on this topic were set to the value problem at, the online database for experts and practitioners on the Internet. The first document (DokNr. 1-09-0100) gives a summary overview of incorrect depreciation investigations by construction experts and courts. Be named in leaked recent misguided evaluation approaches”and essential points of criticism are shown. Some notes are complementary given by the lawyers for the practice of experts, as well as for the review of experts designated revaluation.

The second, 15seitige document (DokNr. 1-09-0050) deals with the question comprehensively, whether and if necessary what repair cost (construction), defects or (building) damages for the determination of Minderwerten may have. The legal reference value investigation represented as well as the expert practice (review sample). On the basis of an analysis of the case-law (with numerous references of judicial decisions) and representation of real estate professional references, it is clear that deficient or damage costs are professionally and legally evidence consistently inappropriate as the basis for a qualified and compelling value determination. The weaknesses of evaluation approaches which build on the repair cost (such as for example the so-called threshold method of Oswald), are shown. Both documents available in the database at Ausbildung.html to the download available.