Design and Build - A design
and build contract is a contractual agreement whereby the contractor offers to
design and build a construction project for a contract sum which is
all-encompassing of both the design and construction costs.
In design and build procurement the client may
choose to keep hold of the services of an architect and quantity surveyor to
act as independent professional advisers for the client to offer essential
advice in terms of cost, time and quality, and also to evaluate the building
contractor's proposals with consideration to both design and cost, and to
scrutinize the work on site.
Advantages of Design and Build System
- There is a single point
responsibility
- Offer shorter overall time
- Fixed priced bids are used.
So financial commitment known by client early in the process.
- Achieve high level of
buildability
- Reduce variations and
destruction to the original design
- Design becomes a competitive
element
- Client's financial risk is
minimal
Disadvantages of Design and Build System
- Comparison of bids can be
complicated
- There are lower level of
competitions at the tender than in other arrangements
- It requires a detailed brief
- The tender process can be
expensive to bidders
- There is a lack of
independent professional advice to the client at the time of tender
- These forms often lack broad
experience or expertise
- Change can be expensive as
valuation of variations
- Aesthetically important
buildings are not recommended to procure this method
There are several methods available under the
Design and Build system
Turnkey - It means a program, project, solution or
system where the contractor or provider undertakes the entire responsibility
from design through completion and commissioning. This client only has to turn
the proverbial key to make everything function as it should.
Package deal - feasibility also done by contractor
& client is able to see the actual examples before making decision.
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