Search results

This paper aims to propose a new format to present the cost of building conservation works which will better reflect the actual cost components and have a higher relevance to building conservation works.

To achieve the study's aim of presenting a new format suitable for building conservation works, a total of 16 conservation projects were selected and work items of the highest frequency were identified and aggregated into the relevant elemental component to formulate a new elemental cost format.

Work items of the highest frequency identified are partitions, doors and ironmongeries, followed by roof finishes and rainwater goods, floor finishes, external walls and windows. In addition to the usual building works, new work items such as scientific analysis, archaeology excavation and temporary roof are also found to be important.

The proposed format has yet to be tested in the local industry, which is necessary to ensure compatibility with industry needs.

This new cost analysis format includes a list of work items that are specific to building conservation works, which may guide the quantity surveyor in preparing a budget/cost estimate with higher accuracy by reducing the risk of omitted work items that are pertinent in building conservation works.

Owing to the lack of cost data information for building conservation works, estimating and controlling the cost in this area of work is very challenging. The proposed new format of elemental cost analysis designed for building conservation works seeks to fill this void by providing a guide in estimating costs for building conservation.

The choice of a particular architectural solution when designing a building considerably influences the costs of its construction. The aim of this paper is to present the indexes which may relate to the complexity of the building shape, and which were then specified and compared on a particular example.

The article analyses various indices of building shape evaluation, their influence on the changes in construction costs and their sensitivity to the changes in the dimensions of the building. The methodology adopted in this article concerns the analysis of the selected simple factors assessing the shape of the building against the cost‐effectiveness of constructing the basic elements of the building.

The authors established the best building shape in relation to the costs of constructing the walls and foundations (square), and to the layout of the inside of the building (rectangle). They believe that the best evaluations of building shape were achieved by the LBI index, which evaluated the shape correctly in all of the analysed examples and which is the most sensitive to the changes in building parameters in correct proportions to the changes in construction costs.

The article presents the indexes which may relate to the complexity of the building shape. The authors established the best building shape in relation to the costs of constructing. The authors provide the degree of the floor area usability in buildings of various shapes.

The main purpose of this paper is to systematically identify important factors that are considered in decision making of maintenance cost and discuss how these factors affect maintenance performance.

This paper employs triangulation technique, which combines quantitative and qualitative approaches. The paper starts with the identification of dominant factors through literature reviews followed by semi‐structured interviews with ten building managers and questionnaire survey. A set of questionnaires are distributed to 200 selected buildings managers in Malaysia. The results from 62 completed questionnaires form a database for the quantitative analysis.

This paper concludes that the maintenance performance suffers from the insufficient allocation of maintenance cost. The main factors that are usually considered by the building managers in allocation of maintenance costs are availability of funding, client's preference, and economic situation. Associative test results reveal that variance in maintenance cost could be improved by considering condition of building and complaint about building performance during decision making of maintenance cost.

This paper provides information for building manager on important factors that need to be considered during decision making of maintenance cost allocation. This would help the manager improve effectiveness and accuracy in preparing a maintenance budget.

With the building maintenance sector in Malaysia being conditionally driven and usually carried out only when there is money, it is critical that organization make effective decisions on priority. This paper determines the most important factors in decision making of maintenance budget.

Although it is easy to show that some buildings cost more to run and operate than others, few people take the trouble to collect evidence and make the comparisons — reflecting the relatively low priority given to buildings in business. Reductions in costs can be significant to company profitability, yet it is a difficult matter to provide a convincing and fully costed argument for making changes to reduce future expenditure, especially where investment is required and where the benefits cannot be easily quantified. Indications are that significant savings are possible in most building costs in use. Indirect cost reductions may be achieved by reorganisation or by encouraging behavioural changes which will enable the building to be used to its full potential. However, direct cost savings may be made by changes to the physical fabric and positive steps can be taken in managing buildings to benefit from these changes and affect profitability. It has been possible to show through action research that the life cycle costs of buildings can be reduced by design, often at no overall capital cost With the availability of suitable tools the future, and its cost consequences, can become an influential factor in management decisions about the building stock.

The purpose of this paper is to look at the applications of factor cost indices in the building industry in Nairobi, Kenya against the possibilities established through a review of the principles so as to establish the extent of use in practical situations in the industry. There are two organisations involved in compilation of factor cost indices in Kenya – Central Bureau of Statistics and Joint Building Council (JBC). Their practices for compilation of factor cost indices are reported in this paper.

The paper reviews the principles of factor cost index in order to establish a conceptual framework within which practices are then evaluated. The statistical bureau's compilation of building cost indices and the instructions by the JBC are considered as available evidence of application.

The paper finds that the application of factor cost index in Kenya is limited, a situation that therefore demands more research by the construction industry in Kenya.

The research's originality lies in its supportive evaluation of the application of the indicator concept in the building industry. More applications would imply greater possibilities for research and development within the case study industry.

The objectives of this paper are to discuss the constraints stemming from the unstructured nature of the cost estimation practice in Turkey and introduce a generic computer aided building cost estimation model based on a cost significant technique for Turkish construction sector public projects in its detailed design phase.

The research design was based on the simplified version of the bill of quantities method and a cost significant estimating model works on a cost database was suggested to overcome the problems. Underlying principles and basic steps of cost estimation based on cost significant work packages was explained by means of manual calculations.

In order to automate the manual building cost estimation process, the software based on cost significant work packages was developed.

The software is currently in the testing phase and is being used for educational purposes. Making use of both public sector and current market prices in the cost estimation process, increasing number of projects stored in the database for more accurate results, estimating costs of different types of projects and calculating the cost significant value factor more precisely by using statistical techniques, those being employed by global cost models are suggested for future research.

As the number of the similar projects in database is increased, the accuracy of the cost estimation is also increased.

Estimators and graduate students can use the software to estimate building cost of public housing projects in its detailed design phase.

The purpose of this paper is to identify the most influential buildings elements in term of the cost for timber restoration works.

The research employed the case studies methods with questionnaires surveys. Two case studies were chosen and questionnaire surveys were distributed to contractors and consultation companies. The cost was identified based on the elemental cost analysis of historic timber buildings.

The restoration of historic timber buildings in Malaysia has grown rapidly, especially in the UNESCO world heritage sites, Melaka and Penang. Data obtained on the restorations of timber buildings show that the most influential elements were upper floors, roofs and walls. Termites’ invasions and the lack of building analysis were found to be the major issue in timber restoration works. In addition, the availability of timber material contributed significantly to the increase of cost for restoration works.

The cost for every element was identified and was used as a reference for new restorations projects of historical, timber buildings. This paper also highlighted the causes for the problems and the factors affecting the cost of timber restoration works. These data are useful information, especially for surveyors and contractors who are involved in the restoration of historic timber buildings. Maintaining or replacing these elements with other material can help to minimise the restoration cost of timber buildings in Malaysia.

The construction cost, yearly maintenance cost and yearly remedial cost of plumbing and drainage systems in buildings were investigated. Occupancy, age, piping material, pipe length and the size of the systems were surveyed in 63 buildings. Correlations for costs of the systems in commercial and residential buildings were made with the surveyed results. Length, material and size of the pipes provide good parameters to determine the system construction costs. Higher maintenance cost and remedial cost for aged systems were reported. Remedial cost for corrosion problems increased significantly for the aged systems.

A challenge in implementing Universal Design (UD) is the perceived additional cost, which acts as a barrier to its widespread adoption. The few studies that have examined the cost for UD apply a theoretical research approach, failing to account for the unique design context that influences construction costs. This article presents a research methodology to calculate the UD cost in a realistic, context-dependent manner.

To address this gap, “Research-by-Design” is applied in a case study approach involving twelve cases from three typologies: secondary schools, town halls and small retail shops. Two scenarios are compared to the existing situation: (1) “renovating into a 100% inclusive building” and (2) “building fully inclusive right away”.

Although the methodology is time-consuming, it allows for a fair, realistic and detailed comparison between costs in different scenarios and cases. Findings show how financial implications are strongly related to its scale. Both “renovation” and “new build” scenarios involve costs, but these are considerably lower for the latter. “Circulation” and “Exterior stairs and ramps” are among the most expensive to renovate, but have almost no additional cost in the examined cases for the “new build scenario”.

The research methodology presented in this study is time-consuming, which may limit its feasibility for large-scale cost assessments in diverse contexts.

The research methodology proposed in this study provides valuable insights for architects, designers and stakeholders involved in the implementation of UD. It offers a realistic and context-dependent approach to assess the cost implications of UD, enabling informed decision-making during the design and construction phases.

By revealing the specific cost implications of UD in different building contexts, this study contributes to promoting greater accessibility and inclusion in the built environment.

The applied approach distinguishes this study for its ability to provide rich contextual information on actual cost implications for UD. By considering real cases and their unique design contexts, valuable insights are offered into the true costs of implementing UD in the built environment.

The construction industry is shifting towards becoming more circular by reducing waste, reusing building materials and embracing regenerative solutions for energy generation and biodiversity conservation. Thus, construction professionals must perform diversified services to achieve a circular built environment (CBE). Implementing resource planning and waste management in CBE has already posed challenges to the quantity surveying profession; thus, quantity surveyors (QSs) should be equipped with new roles and competencies to tackle challenges in achieving a CBE. Hence, this study aimed to investigate the functions and competencies of QSs at the design and building material sourcing stages in achieving a CBE according to 3R principles.

The research apprehended a qualitative approach, including two expert interview rounds adhering to the Delphi technique with 14 and 11 experts per each round. Manual content analysis was incorporated to analyse the collected data.

The research findings revealed the important roles and competencies of QSs in achieving a CBE. In addition, essential functions and competencies were categorised according to the 3R principles (reduce, reuse, recycle) to successfully implement CBE during the Design and Building Material Sourcing stages. According to the 3R principles of CBE, cost control, cost planning, feasibility studies, measurement and quantification, risk management, value engineering and innovations and technologies were well-received by most interviewees as essential roles of QSs during the Design and Building Material Sourcing stages. Further, basic/mandatory competencies (personal, interpersonal, professional practice and business skills), economic analysis, BIM management, cost management and risk management are highly regarded by experts for QS as important competencies to achieve CBE.

With new construction trends, QSs must enhance their conventional roles and competencies and search for new skills and competencies. Those skills and competencies could be linked to the CE concept, either directly or indirectly. Since QS holds a prominent place in sustainable construction in CBE, adapting to changes in the construction industry such as CBE is timely for QSs. Further, there is a shortage of literature regarding QSs' roles and competencies in achieving a CBE; thus, this study will contribute by identifying new avenues for QSs in achieving a CBE in the practice and the research.