Emerging cost contract
![]() |
Emerging cost (Time and Materials (T&M)) contracts are most commonly used for rail infrastructure projects.
They are essentially cost reimbursable management contracts for a programme of works and services where the management contractor is paid direct costs identified in an 'estimate of project costs'. They provide for sophisticated management services along with sub-contracting the construction of the works.
However, while there may be target costs and schedules of rates for individual items of the programme of works, with associated incentives and penalties, there is no overall target cost. This means that the final value of the contract may not be known until the contract is complete. This can be useful where setting an overall target cost would restrict the client’s ability to vary the scope of works.
This means the client is accepting many of the financial risks of the project, and must have the expertise and appropriate controls to manage those risks.
Emerging cost contracts provide for value engineering and for the right to terminate if the cost estimate reaches an agreed percentage above the original estimate.
Emerging cost contracts are often applied over a defined period of time. The longer this period of time, the more consideration the contractor is likely to give to long-term performance issues in design and workmanship.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Professional practical experience for Architects in training
The long process to transform the nature of education and professional practical experience in the Architecture profession following recent reports.
A people-first approach to retrofit
Moving away from the destructive paradigm of fabric-first.
International Electrician Day, 10 June 2025
Celebrating the role of electrical engineers from André-Marie Amperè, today and for the future.
New guide for clients launched at Houses of Parliament
'There has never been a more important time for clients to step up and ...ask the right questions'
The impact of recycled slate tiles
Innovation across the decades.
EPC changes for existing buildings
Changes and their context as the new RdSAP methodology comes into use from 15 June.
Skills England publishes Sector skills needs assessments
Priority areas relating to the built environment highlighted and described in brief.
BSRIA HVAC Market Watch - May 2025 Edition
Heat Pump Market Outlook: Policy, Performance & Refrigerant Trends for 2025–2028.
Committing to EDI in construction with CIOB
Built Environment professional bodies deepen commitment to EDI with two new signatories: CIAT and CICES.
Government Grenfell progress report at a glance
Line by line recomendation overview, with links to more details.
An engaging and lively review of his professional life.
Sustainable heating for listed buildings
A problem that needs to be approached intelligently.
50th Golden anniversary ECA Edmundson apprentice award
Deadline for entries has been extended to Friday 27 June, so don't miss out!
CIAT at the London Festival of Architecture
Designing for Everyone: Breaking Barriers in Inclusive Architecture.
Mixed reactions to apprenticeship and skills reform 2025
A 'welcome shift' for some and a 'backwards step' for others.