Case Study - Sketch Plan - C: Proposal
General Observations
As the technical and financial feasibility has been confirmed in B Briefing: Feasibility above it is now necessary develop the design solution which optimises the project objectives in terms of quality, time and cost as discussed in the Preface of the textbook and further discussed in Chapter 3 of the textbook.
It is during this stage that the main parameters set by the clients brief in terms of the clients objectives are now developed into an outline solution in the form of a broad description of the project expressed quantitatively as a graphical description, qualitatively as a specification and financially as a group elemental cost plan, the purpose of which is to confirm the cost bracket and to seek value for money by allocating cost targets against the group elements.
Further the design team established towards the end of the feasibility stage, comprising architecture, structural and service engineering and cost consultants as well as the client, are working in close consultation to produce outline proposals.
You are reminded to consult Chapter 10, especially pages 104 to 105 to reinforce these comments
In terms of Procurement all the criteria identified under this section have been addressed at the Feasibility stage above although confirmation of the market conditions (tender price index) and location (location index) should be again reviewed to reinforce, or amend as necessary, the earlier decisions that have been made.
In terms of Buildability Outline Drawings with brief specification notes have been produced indicating the size, arrangement and broad specification of the proposed project: View Drawings.
Armed with this information it is now possible to interrogate the BCIS database to find one or more relevant cost analyses. Typical analyses can be observed under the following hotlink:
Elemental cost analyses
A suitable group analysis has been found by the authors:
Group cost analysis
Which has been adjusted for market conditions, size and specification to produce a group outline cost plan as illustrated by our cost model which you are invited to review
In arriving at our cost model cognizance has been taken of nature of the site in terms of ease of access, vandalism, limited working times etc and also within the proposed time scale the amount of winter working that might be required and the influence that the use of prefabrication may have on construction speed and cost.
The implications of plan shape and height upon scaffolding and plant use especially cranage has also been considered in our deliberations