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Preliminary Estimates of Building Cost and the Lowest Evaluated Tender


Harriet K Eliufoo

Abstract

The paper has investigated and established to what extent are preliminary estimates of building costs close to the lowest evaluated  tender  and  how  geographical  proximity  influences  the  variance  between  preliminary  estimate  and  the  lowest evaluated tender. A  multiple  case  study  constituting  43  building  projects  in  Tanzania  were  statistically  analysed  covering  a  period  from 1995-  1999.  Findings  reveal  a  significant  variance exists  between  the  quantity  surveyor’s  preliminary estimate  figure and  the  lowest  evaluated  tender;  and  that  the  variance  between  the  quantity  surveyor’s  figure  and  the bidder  is  small when the proposed building project is geographically closer to the quantity surveyor’s base. Analysis of variance (one - way)  has  shown  geographical  distance  has  a  statistical  significance  on  the  variance  between  the  preliminary  estimates and the lowest evaluated tender. The study has established that the object of preliminary estimates in building costs, that of making the client aware of his financial obligations at early stages of a building project are not met fully.


Journal Identifiers


eISSN: 2619-8789
print ISSN: 1821-536X