TABLE OF CONTENTS - The Professional Green Building Council

Theme B: Creating a livable, healthy and environmentally viable cities3.3 Importance of construction plan and design stageNo matter what type or scale of the construction, it has its life limit. When its lifecycle proceeds, the construction is in function for a long period of time until itbecomes no more economic value. In the research by R.Ries and A. Mahdavi, itdivides the construction life cycle into three stages: construction, operation anddecommission [5]. It also develops a computer evaluation system to support the lifecycle assessment during the design stage of the construction in order to understand theenvironmental impact caused by construction. In the “Handbook of BuildingMaintenance Management”, it has illustrate the cost and time spend in each stage ofthe construction project: the average construction project requires 3 years for theplanning; 1~2 years for the designing; 4~5 years for the construction depending on thescale of the project and the operating and maintaining lasts 40~50 years which is 9~10times of the time spent for all the other stages [6]. This proves the importance foroperation and maintenance within the construction life cycle. However, all the stagewithin the construction life cycle is closely connected, if the plan and design does notmeet the need for the users, it will cause the problem of reconstruction or other futureoperation and maintenance problems. Therefore, with good management of thebeginning stage, plan and maintenance, for the construction management; it preventsthe unnecessary cost.4. THE DEFECTS CAUSING THE DIFFICULTY IN THEIMPLEMENTATION OF PROPERTY MANAGEMENT4.1 The implementation defects during construction plan and design stageThe study focus on the implementation defects during construction plan and designstage. The study draws the conclusion of the following three defects:317