Research Area:
Landscape Change and Management

Heated non-residential Buildings

Typology and stock of heated non-residential buildings

grafic: IÖR

The final report at hand presents the results of the research project "Typology and stock of heated non-residential buildings".

The typology developed within the framework of the project encompasses 11 major categories each including a certain number of specific subtypes which were formed in line with the requirements of the project. Compared to existing classi-fication systems for buildings several building types are either omitted due to the specifications of the Energy-Saving-Regulation (Energie-Einspar-Verordnung) or due to their quantitative relevance. Within each type and sub-type further differ-entiations are conducted on the basis of the structural design, energetic quality etc. where necessary. This part of the research work is accomplished by the identification of typical representatives for the individual building types including a short description of the main characteristics of these representatives.

The second part of the research project targets the determination or estimation of the quantitative structure of the existing non-residential building stock. A spe-cial focus therein is put on the development and illustration of appropriate meth-ods for the estimation of the building stock. The utilization of geographic infor-mation systems such as ATKIS or ALKIS, the calculation on the basis of urbanis-tic reference values or the direct or indirect utilization of statistical data gathered in official statistics such as the construction activity statistics are the methods described. Within each method various alternatives may be used. The data and maps of the geographic information systems have proven to be principally a promising method where theoretically all required information concerning num-ber, built floor space and number of stories of non-residential buildings are col-lected as well as effective floor space and cubic content can be estimated. Never-theless, in practice there are limitations observable with respect to the quality of the data and accessibility of the maps. Additionally, the efforts to gather all the numbers for whole Germany or project them are immense. Using statistical data directly leads on the one hand to a picture of the dynamics of the stock (through inflow and outflow of buildings) and on the other hand to a rough, but incomplete overview of the number of buildings. Through indirect data such as the net in-vested capital accumulated in the buildings it is possible to give estimations on the building stock in a certain range.

The final part addresses the remaining demand for further research in the area. Concerning the typology there is further demand in substantiating energetic da-ta, determining the state of retrofit, identifying the influence of the user and ana-lyzing the domestic technology at hand. As the emphasis was put on the devel-opment and assessment of alternative methods, the numbers must be inter-preted as rough estimations. The further development of the geographic informa-tion systems accomplished by a simultaneous improvement of the accessibility at least for scientific purposes would support in reducing the existing deficits. With respect to the statistical aspects a better, centralized and compatible structure for the data is required. For assessing the amounts top-down and bottom-up ap-proaches are to be further developed in order to achieve a detailed determination of the non-residential building stock.


06/2010 - 05/2011


Dipl.-Ing. Karin Gruhler

Phone +49 351 4679 250


Bund, BBSR


Ing.-Büro Petereit, Göldenitz


Final report PDF 3,2 MB