Architecture / June 12, 2018 /
The contract documents set out what work must be done, and how, and under what conditions it is to be done. They identify the contractors obligations and liabilities and form the contractual agreement to do the work for the stated price or at the agreed rates. Many if not most financial problems in building originate in inadequate or unclear tender and contract documents, often culminating in disputes between the client and the contractor over what is included in the price for the work.
The site topography i.e. the natural site features, ground conditions and obstructions, existing and adjoining building, and underground and over-ground services all impact on how the building is designed and subsequently constructed. The nature of each site must be individually checked to establish potential problems. Greenfield developments cost less than brownfield sites which may incur significant demolition, site clearance and remediation costs. Heavily sloped sites require extensive stepping or cut and fill operations and such sites may be dangerous and adversely affect the working conditions and productivity of operatives and plant output. Sites with poor loadbearing capacity will require more expensive foundations while exposed or waterlogged sites will also reduce overall productivity. The cost of dealing with unforeseen ground conditions, archaeological finds and encountering uncharted buried services may be substantial and will be borne by either the client or contractor, depending on the form of contract employed.