Purpose – There is growing acceptance that heritage buildings are an important element of Australia's social capital and that heritage conservation provides economic, cultural and social benefits to urban communities. The decision whether to reuse a building entails a complex set of considerations including location, heritage, architectural assets, and market trends. The role of building conservation has changed from preservation to being part of a broader strategy for urban regeneration and sustainability. A growing body of opinion supports the view that adaptive reuse is a powerful strategy for handling this change. Urban development and subsequent redevelopment has a significant impact on the environment and the purpose of this paper is to investigate how the conservation of heritage buildings may contribute to a more sustainable urban environment. Design/methodology/approach – This paper examines the views and experiences of architects, developers and building managers who have been involved with the adaptive reuse of heritage buildings. In total, 60 semi-structured interviews were drawn from this stakeholder group to investigate their current understanding of the sustainability issues associated with the adaptive reuse of heritage buildings. Findings – The subsequent data show that despite many positive outcomes in terms of sustainability, the adaptive reuse of heritage buildings is considered to create many problems; not the least of which is whether heritage buildings are icons that should be conserved or whether they are in fact eyesores and unviable for adaptive reuse. Originality/value – The contribution of heritage buildings to the three tenets of sustainability has not previously been explored comprehensively and as a result there is a conflict of interest between the preservation of heritage values and progression of the sustainable urban design agenda.

Very few construction companies and consulting firms in Australia measure their costs of quality. Consequently, it is difficult for them to prove that systems for preventing quality failures are cost-effective. Although the direct costs of a quality system can be quantified with some accuracy (salaries, costs of documentation, audits, etc.), the corresponding benefits are far more difficult to assess. Indeed quality failures have become an endemic feature of the procurement process in construction and invariably lead to time and cost overruns in projects. Thus, in order to improve the performance of projects it is necessary to identify the causes and costs rework. The research presented in this paper quantifies the causes, magnitude and costs of rework experienced in two construction projects that were procured using different contractual arrangements. The causes and costs of rework projects are analysed and discussed. The findings reveal that the cost of rework for the case study projects was 3.15% and 2.40% of their project contract value. Changes initiated by the client and end-user together with errors and omissions in contract documentation were found to be the primary causes of rework. It is recommended that construction companies and consultant firms (particularly design consultants) implement quality management practices as well as place emphasis on coordinating project documentation during the design development process so that the amount of rework in projects can be reduced or even eliminated.

While it is widely recognized that additional costs due to rework can have an adverse effect on project performance, limited empirical research has been done to investigate the influencing factors. The research presented in this paper aims to determine the influence of different project types and procurement methods on rework costs in construction projects. Using a questionnaire survey, rework costs were obtained from 161 Australian construction projects. The direct and indirect consequences of rework are analyzed and discussed. It is shown that, contrary to expectation, rework costs do not differ relative to project type or procurement method. In addition, it was found rework contributed to 52% of a project’s cost growth and that 26% of the variance in cost growth was attributable to changes due to direct rework. To reduce rework costs and therefore improve project performance, it is posited that construction organizations begin to consider and measure them, so that an understanding of their magnitude can be captured, root causes identified, and effective prevention strategies implemented.