Baseline programme
A baseline programme may be prepared by a contractor at the beginning of a project. This is a detailed view of how they will divide the works into activities, the duration of those activities, and logic links to preceding and succeeding activities. This programme should be practicable and realistic, showing when the contractor intends to carry out each part of the works and identifying the resources they intend to use.
Under NEC3 contracts, the contractor’s programme is then submitted to the project manager, and if the project manager accepts it, it becomes the ‘accepted programme’ identified in the contract data.
The contractor’s programme is likely to be updated throughout the course of the works and when accepted by the project manager, that updated programme becomes the new accepted programme.
NEC4 introduces the new concept of ‘treated acceptance’, by which the project manager has a specified period of time to notify the contractor whether their programme has been accepted or not. If they fail to notify the contractor within this period, the programme is deemed to be accepted.
NB The CIOB Planning Protocol 2021 (CIOB PP21), a technical information sheet published by the Chartered Institute of Building (CIOB) in February 2021, defines a baseline programme as: ‘A programme typically prepared prior to the commencement of a project, representing a contractor’s planned intention for sequencing the works. This programme is later used as a baseline for measuring the contractor’s actual progress and performance.’
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
UK Net Zero Carbon Buildings Standard V1 published
Free-to-access technical standard to enable robust proof of a decarbonising built environment.
Prostate Cancer Awareness Month
Why talking about prostate cancer matters in construction.
The Architectural Technology podcast: Where it's AT
Catch up for free, subscribe and share with your network.
The Association of Consultant Architects recap
A reintroduction and recap of ACA President; Patrick Inglis' Autumn update.
The Home Energy Model and its wrappers
From SAP to HEM, EPC for MEES and FHS assessment wrappers.
Future Homes Standard Essentials launched
Future Homes Hub launches new campaign to help sector prepare for the implementation of new building standards.
Building Safety recap February, 2026
Our regular run-down of key building safety related events of the month.
Planning reform: draft NPPF and industry responses.
Last chance to comment on proposed changes to the NPPF.
A Regency palace of colour and sensation. Book review.
Delayed, derailed and devalued
How the UK’s planning crisis is undermining British manufacturing.
How much does it cost to build a house?
A brief run down of key considerations from a London based practice.
The need for a National construction careers campaign
Highlighted by CIOB to cut unemployment, reduce skills gap and deliver on housing and infrastructure ambitions.
AI-Driven automation; reducing time, enhancing compliance
Sustainability; not just compliance but rethinking design, material selection, and the supply chains to support them.
Climate Resilience and Adaptation In the Built Environment
New CIOB Technical Information Sheet by Colin Booth, Professor of Smart and Sustainable Infrastructure.
Turning Enquiries into Profitable Construction Projects
Founder of Develop Coaching and author of Building Your Future; Greg Wilkes shares his insights.
IHBC Signpost: Poetry from concrete
Scotland’s fascinating historic concrete and brutalist architecture with the Engine Shed.






















