Have the house/property appraised in case of inheritance or gift

Don't understand this ... the current state is being estimated

No, if the committee makes an assessment, the object will be inspected.

Since this is about [ErbSt/SchenkSt], the corresponding Purple Book (Valuation Act) applies.

Real estate. The whole thing is either done using a cost approach or the income approach. What matters here is the type of property or building. With the information provided, one would have to speculate on what exactly is involved.

I assume here a single-family house or a two-family house, for which the income approach would then apply. Since only you have all the information necessary for the valuation according to paragraphs 78 to 82 BewG, I recommend taking a look at the law; then you will know which value the tax office assumes for a potential gift/inheritance tax.

You always have the option to challenge this value through a separately commissioned appraisal, see Par 198 BewG.

The appraisal committee is only marginally involved here, by the way. These serve solely to price the property itself, as the standard land value is generally applied for this purpose.

The building is then evaluated as mentioned above and, in the end, the land plus the value determined from the respective procedure are added together.

Thank you very, very much - now my mind is clearer again, at least regarding this matter!

Gladly ☺️ By the way, something that provides a great overview of the assessment based on the income approach is actually the law (at least the administrative form of it). Just enter ErbStH H B 184 (Zu § 184 BewG) into the search engine of your choice. Then you will find a nice diagram.