Job Book 9th Edition - Book - Page 187
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Stage 4 > Technical Design
Summary
The architectural, building services and
structural engineering designs are now further
refined to provide technical definition of the
project and the design work of specialist
subcontractors is developed and concluded.
The level of detail produced by each designer
will depend on whether the construction on
site will be built in accordance with the
information produced by the design team or
based on information developed by a specialist
subcontractor. The Design Responsibility
Matrix sets out how these key design
interfaces will be managed.
Using the design coordinated during the
previous stage, the designers should now
be able to develop their Technical Designs
independently, with a degree of autonomy.
The lead designer will provide input to certain
aspects, including a review of each
designer’s work.
Mapping to RIBA Outline Plan of
Work 2007
Stage 4 comprises the residual technical
work of the core design team members. At
the end of Stage 4, the design work of these
designers will be completed, although they
may have to respond to Design Queries
that arise from work undertaken on site
during Stage 5. This stage also includes and
recognises the importance of design work
undertaken by specialist subcontractors
and/or suppliers employed by the contractor
(Performance Specified Work in JCT
contracts) and the need to define this
work early in the process in the Design
Responsibility Matrix.
Once the work of the design team has been
progressed to the appropriate level of detail, as
defined in the Design Responsibility Matrix
and the Design Programme, specialist
subcontractors and/or suppliers undertaking
design work will be able to progress their
design work. The lead designer and other
designers, where required as part of their
Schedule of Services, may have duties to
review this design information and to ensure
that specialist subcontractor design work is
integrated with the coordinated design.
By the end of this stage, all aspects of the
design will be completed, apart from minor
queries arising from the site during the
construction stage. In many projects, Stage 4
and 5 work occurs concurrently, particularly
the specialist subcontractor design aspects.
www.ribaplanofwork.com
RIBA Plan of Work 2013
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175
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