Comparative value factors

The expert committees for property values have the legal mandate to ensure transparency on the property market. The expert committee for property values for the Saarpfalz district therefore offers interested parties the opportunity to make an approximate calculation of purchase prices for detached and semi-detached houses, terraced houses and semi-detached houses.

The calculation is based on the collection of purchase prices maintained by the expert committee. Statistical methods (multiple regression) are used to derive comparative factors from the stored purchase cases, which describe the influences of various parameters such as location (standard land value), year of construction, living space, house type, plot size and standard of fittings on the property price. These comparative factors form the basis for calculating the average price level.

Purchase prices are generally influenced by different perceptions of value, a large number of individual property-related factors and random and personal circumstances. These special circumstances are not taken into account.

The building factors were derived using the multiple regression analysis method. The main influencing variables (fit-out) standard, living space, standard land value and house type significantly determine the purchase price. The living space according to WoFlV was selected as a suitable reference unit for deriving the building factors.

As a result, the building factors represent an average price level as estimated values. These are not directly applicable for a market value assessment within the meaning of Section 194 BauGB, as special property-specific property characteristics must be examined and taken into account when carrying out a valuation using the comparative value method - as in the income and asset value method. In order to determine the market value, a qualified market value assessment is generally required.

Instructions for use

The building factors are shown as the purchase price per unit area (living space). Values for land are included in the building factors, as are the usual number of parking spaces, garages and carports.

Three distinctions are made for the house type:

EFH - detached single-family house

ZFH - Two-family house, semi-detached house and terraced house

RH - mid-terrace house

The result represents a determination of the approximate price level and is intended to serve the user as a guide for a rough estimate of the property value. The information applies to an average property in a normal state of maintenance. Value-influencing special features of the condition and fittings of the building as well as rights, encumbrances, unusual plot sizes etc. generally lead to a different value.

Important to know:

The comparative value (comparative factor x reference unit) does not replace a market value appraisal and cannot be used as a basis for a qualified market value appraisal in accordance with § 194 BauGB. It is also not information from the purchase price collection.

Content of the calculation - Average price level

The calculation is made on the basis of the comparative factors and the information provided by the user without knowledge of the specific features of the property. The property is not inspected and the specified property data is not checked.

The calculation assumes standard properties in an average state of maintenance. Special conditions of the property such as listed buildings, location in a redevelopment area, legal restrictions, structural improvements, maintenance and repair deficits and other individual characteristics of the property and the building cannot be taken into account in the comparative value calculation.

Due to the data material recorded in the purchase price collection, the calculation only leads to usable results within defined validity ranges for the influencing variables. It is therefore not possible to calculate outside these limits.

Depending on the parameters entered, the result of the calculation reflects the approximate price level and can serve the user as a guide for a rough estimate of the property value.

Guarantee

The expert committee manages the data with the care required to fulfil its public duties. However, it accepts no liability for the completeness and accuracy of the data or the maps used. In particular, no guarantee is given that the stated property price can actually or even approximately be achieved on the property market.

Use of the data

The results of the calculation as well as the standard land values and their map bases are protected by law. Utilisation for non-own or commercial purposes, dissemination (e.g. in the form of exposés or similar) and public reproduction are only permitted with the permission of the publisher.