Design and Build Contacts

• A specialize form of contractual relationship in which responsiblity for design as well as construciton is entrsted to the contractor . 
• Employed for a whoide range of projects such as housing , hospial and etc . 
• Contractors would be required to submit lump sum figures to cover site managment costs , head office overheads , design costs and profits . 
• Substructures such as pilling works , ecxternal works , such as drainage works , sewerage works will normally be evaluated in a provisional bills of quantities .