Business case for construction projects
Contents |
[edit] Introduction
The CIOB Code of practice for project management 4th edition, defines a business case as the 'Information necessary to enable approval, authorisation and policy-making bodies to assess a project proposal and reach a reasoned decision'.
In the very early stages of a project, a preliminary business case should be prepared. This is then developed into a detailed business case for the preferred option after feasibility studies and options appraisals have been carried out. The detailed business case is the document that will be used to determine whether authority should be given for the preferred option to progress to the next stage (concept design).
Preparing a business case may require input from independent client advisers (such as management accountants, business development advisers, facilities managers, specialist advisers such as IT consultants, etc.), but generally, it will be prepared and 'owned' by the client, who can learn a considerable amount about themselves and their project through the process of writing the business case.
[edit] Contents
A business case may include:
- Confirmation that the project is compatible with the client's stated vision, mission and objectives.
- An assessment of the support for the project.
- Confirmation that feasibility studies have been completed, the appropriate options have been explored and a preferred option identified.
- Confirmation that the project is likely to deliver its business goals. These goals should be prioritised and should be testable so that the developing and completed project can be tested against them.
- Confirmation that the proposal is affordable, achievable and likely to deliver value for money.
- Confirmation that the scope and requirements are realistic, clear and unambiguous.
- Confirmation that appropriate advice has been obtained.
- Confirmation that market conditions have been properly considered.
- Identification of major risks and possible mitigation.
- Identification of third party dependencies and necessary consultations.
- Assessment of the likely need for the appointment of a consultant team or independent client advisers.
- Assessment of long term investment prospects.
- Assessment of procurement options.
- Statement of design intent.
- Schedules of critical dates (some of which may be beyond the control of the client):
- Planning committee meetings.
- Key holiday dates.
- Client board meetings.
- Spending budgets.
- Competition coming to market.
- Grant entitlements.
- Projected financial forecasting:
- Projected balance sheet.
- Cash flow projection.
- Project expenditure.
- Income (or savings) projections.
- Projected profit and loss accounts.
- Plans for the next stage.
The business case should be written in clear, concise language that is easy to understand and may include diagrams and illustrations where appropriate. It may be seen by a wide range of people and so should be accessible and should express key brand values.
It is likely to be presented as a report, however, where possible, information and requirements should be scheduled in a database or spreadsheet format that will be easy to expand and will be easy to use to test whether proposals satisfy requirements later in the project.
External consultants may be brought in to review a draft business case before it is finalised or circulated to a wider audience.
[edit] Other definitions
NB The RIBA Plan of Work 2013 defines the business case as: '...the rationale behind the initiation of a new building project. It may consist solely of a reasoned argument. It may contain supporting information, financial appraisals or other background information. It should also highlight initial considerations for the Project Outcomes. In summary, it is a combination of objective and subjective considerations. The Business Case might be prepared in relation to, for example, appraising a number of sites or in relation to assessing a refurbishment against a new build option.'
Guide to developing the project business case, Better business cases: for better outcomes, published by HM Treasury in 2018, defines a business case as: ‘A management tool that records the current state of evidence and thinking concerning the development approval and implementation of proposal. It supports the processes of scoping, analysis, appraisal, planning, monitoring, evaluating, approval and implementation a proposal and is the repository for the evidence base.’
[edit] Related articles on Designing Buildings
- Accounting.
- Additionality.
- Benchmarking.
- Budget.
- Business.
- Business justification case.
- Cash flow.
- Client requirements.
- Commercial management.
- Construction loan.
- Construction project funding.
- Contingencies.
- Cost engineering.
- Cost information.
- Cost plans.
- Demonstration project.
- Development appraisal.
- Development proposal DP.
- Direct cost.
- Environmental scanning.
- Full business case.
- Funding options.
- Funding prospectus.
- Investment.
- Investment property.
- Irrelevant cost.
- Managing the procurement process.
- Needs analysis.
- Net Present Value.
- Officials pledge to continue housebuilding work.
- Outline business case.
- Overheads.
- Preliminary business case.
- Project risk.
- Relevant cost.
- Risk management.
- Risk register.
- Turnover.
- Value added.
- Vision.
- What makes good design?
- Whole-life costs.
- Yield.
[edit] External references
- HM Treasury: Business Case Guidance.
- HM Treasury: Green Book, a framework for the appraisal and evaluation of projects.
- Business Case & Business Plan
Featured articles and news
What they are, how they work and why they are popular in many countries.
Plastic, recycling and its symbol
Student competition winning, M.C.Esher inspired Möbius strip design symbolising continuity within a finite entity.
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.
The Warm Homes Plan details released
What's new and what is not, with industry reactions.
Could AI and VR cause an increase the value of heritage?
The Orange book: 2026 Amendment 4 to BS 7671:2018
ECA welcomes IET and BSI content sign off.
How neural technologies could transform the design future
Enhancing legacy parametric engines, offering novel ways to explore solutions and generate geometry.
Key AI related terms to be aware of
With explanations from the UK government and other bodies.
From QS to further education teacher
Applying real world skills with the next generation.
A guide on how children can use LEGO to mirror real engineering processes.
Data infrastructure for next-generation materials science
Research Data Express to automate data processing and create AI-ready datasets for materials research.
Wired for the Future with ECA; powering skills and progress
ECA South Wales Business Day 2025, a day to remember.
AI for the conservation professional
A level of sophistication previously reserved for science fiction.
Biomass harvested in cycles of less than ten years.
An interview with the new CIAT President
Usman Yaqub BSc (Hons) PCIAT MFPWS.
Cost benefit model report of building safety regime in Wales
Proposed policy option costs for design and construction stage of the new building safety regime in Wales.
Do you receive our free biweekly newsletter?
If not you can sign up to receive it in your mailbox here.

























Comments
To start a discussion about this article, click 'Add a comment' above and add your thoughts to this discussion page.