Procurement is the process of purchasing Works,
Goods, Consultancy Services or Other Services.
There are many different routes by which the design
and construction of a building can be procured. The selected route should
follow a strategy which fits the long-term objectives of the client's business
plan. Considerations are likely to include:
Speed Cost Specific project
constraints Risk Financing
Quality
Asset ownership
·
time of
tender, cost and time certainty are reduced.
Design and
build
Design and build is a term describing a procurement
route in which the main contractor is appointed to design and construct the
works, as opposed to a traditional contract, where the client appoints
consultants to design the development and then a contractor is appointed to
construct the works. The employer gives the tenderers the ‘Employer’s
Requirements’ and the contractors respond with the ‘Contractor’s Proposals’,
which include the price for the works. The contractor is responsible for the design,
planning, organisation, control and construction of the works to the employer’s
requirements.
Design and build can be attractive to clients as it
gives a single point of responsibility for delivering the project.
Design and build projects can follow either a single-stage or two-stage
tender processes. Design and build can be seen as giving a single point of
responsibility for delivering the entire project. Design and build contracts
can be awarded on a fixed price, lump sum basis, but price certainty is then
dependent on not making any subsequent changes as these could prove to be
expensive (as prices charged by the contractor for those changes will not be
subject to competition). It is very important therefore that the client gives a
great deal of consideration to the preparation of employer's requirements.
Appropriate:
· Where there is a need to make an early start on site – can overlap design and construction
· Where the client wishes to minimize their risk – no responsibility for design
· For technically complex projects which can benefit from the contractor’s expertise
·
Where the
employer does not want to retain full control over the design development
What are
the advantages of design and build?
· Single point of responsibility for design and construction
· Earlier commencement on site
· Early price certainty
· Benefit of contractor’s experience harnessed duringdesign What are the disadvantages?
· Client may find it hard to prepare a sufficiently comprehensive brief
· Client has to commit to a concept design early
· Variations from the original brief can be difficult to arrange and expensive
· Harder to compare tenders and determine if they offer value for money
·
Ease of
fabrication may be prioritised above aesthetic quality
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