An investigation of the suitability of cost models for use in building design

It is proposed that cost models of various types are becoming more widely used in building design, but that their limitations in this application have not always been recognised. This research is an attempt to identify and quantify these limitations. After an initial examination of the building design process, the literature of cost modelling in building design is reviewed. The features of models in this context are considered theoretically and a set of performance criteria are identified. Three suitably defined models are presented, a superficial area model, a model for the evaluation of a subset of building regulations and a cost model for air- conditioning system design. The work then proceeds to evaluate the quantitative effects of the criteria upon these models. Each model is examined in detail. Conclusions are drawn with respect to the relevance of the criteria upon these models. Each model is examined in detail. Conclusions are drawn with respect to the relevance of the criteria themselves and the implications of the results gained here for the wider use of cost models in building design, are assessed.