Start-start logic
The CIOB Planning Protocol 2021 (CIOB PP21), a technical information sheet published by the Chartered Institute of Building (CIOB) in February 2021, defines start-start logic as: ‘Logic between activities / milestones which specifies the sequence that the predecessor activity is to start at the same time that the successor activity is to start.’
See also: Start-finish logic and Finish-start logic.
--CIOB
[edit] Related articles on Designing Buildings Wiki
- Accepted programme.
- Activity schedule.
- As-built programme.
- CIOB articles.
- Contractor's master programme.
- Contractor's working schedule.
- Critical path.
- Design programme.
- Finish-start logic.
- Logic link.
- Programme for building design and construction (project programme).
- Programme.
- Schedule.
- Start-finish logic.
- Stress test.
Featured articles and news
A UK training and membership provider for mould remediation professionals.
Building Safety recap April, 2026
A short and longer run-through of the month, with links to further information and sources.
CIAT May 2026 briefing.
Independent NSI and BAFE study exploring how organisations are changing the way they buy fire safety services.
From medieval scribes to modern word art.
ECA welcomes crackdown on late payment and push for clean energy, whilst CIOB seek fixed cladding removal timeframes.
Cyber Security in the Built Environment
Protecting projects, data, and digital assets: A CIOB Academy TIS.
Managing competence in the built environment
ITFG publishes new industry guide on how to meet the ICC principles.
The UK's campaign to reduce noise pollution: Mythbusting, articles and topic guides.
Setting Expectations on Competence Management
Industry Competence Committee.
New Scottish and Welsh governments
CIOB stresses importance of construction after new parliament elections.
The sad story of Derby Hippodrome
An historic building left to decay.
ECA, JIB and JTL back Fabian Society call to invest in skills for a stronger built environment workforce.
Women's Contributions to the Built Environment.
Calls for the delayed Circular Economy Strategy
Over 50 leading businesses, trade associations and professional bodies, including CIAT, and UKGBC sign open letter.
The future workforce: culture change and skill
Under the spotlight at UK Construction Week London.
A landmark moment for postmodern heritage.






















