Reasonable manufacturing costs

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Reasonable production costs serve as the basis for determining the building value and can differ from the actual production costs .

Importance and determination

When determining the mortgage lending value, for example, it is not the actual production costs but the reasonable production costs that are used. They often contain special features of the construction that lead to cost increases. In principle, they should not be taken into account in the lending check. The costs for comparable, normal buildings are decisive.

The value of a loan object serves as security for a real loan and must therefore be determined as carefully as possible. The building value is the value of the buildings on a piece of land (in relation to the land value).

When determining the building value, reasonable production costs are assumed, those costs that are necessary for the construction of the building to be lent on the basis of a normal average scale. The actual costs can exceed the reasonable production costs. The reasonable production costs are determined using the discount method or the index method . The discount method is based on current comparative prices. If a modified index method is used, this is based on the construction price index of the Federal Statistical Office . In any case, you need the exact dimensions and volume of the building, which result from the planning documents of the architect.

An example calculation illustrates how the building value is determined using the discount method:

  • Enclosed space (800 m³)
  • Reasonable construction costs (350 euros / m³): 280,000 euros
  • Building costs (15%): 42,000 euros
  • Reasonable production costs: 322,000 euros
  • Risk discount (25%): 80,500 euros
  • Construction value: 241,500 euros

Individual evidence

  1. ↑ H. Siebdrat: Multimedia and knowledge-based systems in the financial sector. Deutscher Universitätsverlag, Wiesbaden 1994, p. 165.
  2. ↑ Felicia Ullrich: The clever banking formula booklet: types of calculation, solutions and important formulas for bankers. 10th edition. U-Form-Verlag, July 16, 2012, ISBN 978-3-88234-972-6 , p. 97.
  3. ^ A b Jürgen Krumnow, et al .: Bank-Stock Exchange Financing. In: Gabler Bank Lexicon. Springer-Verlag, 2013, p. 231.
  4. ↑ Jürgen Platz: Real Estate Management. Test criteria for location, substance, return. Springer-Verlag, 2013, p. 52.
  5. ^ Wolfgang Grundmann, Rudolf Körner-Delfs: Case-oriented bank business management. Understand and implement BBWL based on practical banking tasks. With free solutions on the Internet. Springer-Verlag, 2008, p. 303.

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