- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 27 May 2015
'The Green Book: Appraisal and Evaluation in Central Government' is produced by HM Treasury. It provides a structure for the appraisal of proposed central government projects, policies and programmes, and for the evaluation of existing projects, policies and programmes. The Green Book is supported by a range of supplementary guidance.
The Green book is intended to cover the following activities:
- Policy and programme development.
- Capital projects.
- Use or disposal of existing assets.
- Specification of regulations.
- Major procurement decisions.
The Green Book sets out transparent and consistent procedures for assessment and evaluation to ensure that public funds are spent efficiently and are spent on proposals that will be of the greatest benefit to society.
- Justify action.
- Set objectives.
- Appraise options.
- Develop and implement the solution.
Assessment is the process of deciding whether the proposal should go ahead or not, and which option to pursue. Assessment should includes economic, financial, social and environmental impacts and includes the following overall processes:
- Identify alternative approaches.
- Attach monetary values to impacts.
- Carry out cost/benefit analysis of options.
The Green Book suggests that the issues that should be considered as part of an assessment might include:
- Strategic impact.
- Economic rationale.
- Financial arrangements and affordability.
- Commercial and partnering arrangements.
- Regulatory impact.
- Information management and control.
- Environmental impacts.
- Rural issues.
- Health and safety.
- Consumer focus.
- Regional perspectives.
- European Union.
- Design quality.
The Green Book is not specific to design and construction projects, and so the guidance it contains can be a little general. However, the Office of Government Commerce (OGC) gateway review process does include guidance specific to design and construction projects, and OGC gateway 1 and OGC gateway review 2 include a requirement for compliance with procedures set out in the Green Book.
NB The Office of Government Commerce (OGC) has now been absorbed into the Efficiency and Reform Group (ERG) within the Cabinet Office. OGC guidance has been archived, however, it is cited in the Government Construction Strategy and the Common Minimum Standards, and links are provided to OGC documents from government websites such as the Major Projects Authority.
 Find out more
 Related articles on Designing Buildings Wiki
- Business plan.
- Common Minimum Standards.
- Development appraisal.
- Government Construction Strategy.
- Major Projects Authority.
- Preliminary business case.
- Procurement route.
- Public procurement.
 External references
Featured articles and news
Richard Rogers wins is the AIA’s highest annual honour.
A quick introduction to a healthier and more sustainable form of construction.
The structural feasibility of modular high-rise buildings.
BRE conference on ways of providing and maintaining quality indoor environments.
CDBB publish foundational definitions and values to guide the development of the National Digital Twin.
Despite the reduction in staffing, most users remain satisfied with the service.
We run through the top 37 styles in history - but how many would you recognise?
Improving approaches to risk in the built environment sector.
Megatrends: Smart Building Technology
Share your BREEAM knowledge to help improve the industry.