The on-site appointment with the expert in terms of a purchase consultation is an absolute must for every interested party. As a rule, neither the interested party, nor the owner or the agent can correctly assess the condition of the property and can also not contribute anything substantial regarding the renovation and remodeling costs. For "renovated" properties, the value retention and the constructional/physical consistency of the measures carried out must also be evaluated. Many properties are botched or are “sales-painted.” One must not be deceived by a nice surface.
In addition, a number of documents must be obtained and reviewed, which can prove various encumbrances on the property. The buyer should, of course, only acquire a property free of burdens. The property must also be checked at all stages of development for compliance with building regulations and the existing permits. There has been and still is a lot of illegal construction. If it can be approved, it can be legalized; some private conversions are not, however, and therefore, in principle, do not count towards the area offered for sale. Sometimes the property is significantly reduced during the course of the purchase consultation if it turns out that the converted shed/stable/barn/extension was never applied for building permission.
Ultimately, the expert can, of course, also perform an approximate calculation based on the asking purchase price, whereby currently demand is naturally pushing the prices very much.
Conclusion: after the first inspection, if the property is basically a possibility, a second appointment with the expert should be arranged. The owner/agent must agree to this. If not, something is wrong with the property and it should not be considered further. A detailed inspection takes about 2 hours at the property and must be factored in by the agent. One should not be rushed and should look very closely.