Source: https://www.quantsurv.com/library/glossary/prolongation
Content format: Markdown version of the public page.
Content reviewed: 2026-10-10

# Prolongation

An extended period needed to carry out your work, distinct from the separate question of recoverable delay costs.

by [Jack Butler-Kettle](<https://www.quantsurv.com/about#jack-butler-kettle>) · About 1 min readShare

## Further detail

Read this alongside [SCL Delay and Disruption Protocol](<https://www.scl.org.uk/sites/default/files/documents/SCL_Delay_Protocol_2nd_Edition_Final.pdf>).

Prolongation describes work taking longer. A claim for prolongation costs requires a separate assessment of entitlement and the financial effect of the relevant delay. The compensable period may not match the entire extension of time, and actual records are important when explaining additional resource costs.

Connect the event, period and extra resources. [Delay and disruption cost recovery](<https://www.quantsurv.com/claims?service=%2Fdelay-and-disruption%2Fservices%2Fdelay-disruption-recovery#client-types>) can help distinguish an extended programme from a supported financial claim.

## Sources

1.  [Delay and Disruption Protocol, 2nd edition, February 2017](<https://www.scl.org.uk/sites/default/files/documents/SCL_Delay_Protocol_2nd_Edition_Final.pdf>). Society of Construction Law.

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