Holdback
In construction, the concept of a retention can sometimes, and in some jurisdictions, be referred to as a ‘holdback’.
Retention is a percentage (often 5%) of the amount certified as due to the contractor on an interim certificate, that is deducted from the amount due and retained by the client. Half of the amount retained is released on certification of practical completion, and the remainder is released upon certification of making good defects. The purpose of retention is to ensure that the contractor properly completes the activities required of them under the contract.
For more information see: Retention
Holdback is the same contractual mechanism as a retention; a proportion of the final payment is ‘held back’ from the contractor until the client is satisfied that the works have been completed to the specification.
In some countries, more than one holdback can be applied. For example, in Canada, a basic holdback may be retained form the total project cost, released after practical completion. A finishing may then be retained from the value of the work left to be done, released after project completion.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Classroom electrician courses a 'waste of money'
Say experts from the Electrical Contractors’ Association.
Wellbeing in Buildings TG 10/2025
BSRIA topic guide updates.
With brief background and WELL v2™.
From studies, to books to a new project, with founder Emma Walshaw.
Types of drawings for building design
Still one of the most popular articles the A-Z of drawings.
Who, or What Does the Building Safety Act Apply To?
From compliance to competence in brief.
The remarkable story of a Highland architect.
Commissioning Responsibilities Framework BG 88/2025
BSRIA guidance on establishing clear roles and responsibilities for commissioning tasks.
An architectural movement to love or hate.
Don’t take British stone for granted
It won’t survive on supplying the heritage sector alone.
The Constructing Excellence Value Toolkit
Driving value-based decision making in construction.
Meet CIOB event in Northern Ireland
Inspiring the next generation of construction talent.
Reasons for using MVHR systems
6 reasons for a whole-house approach to ventilation.
Supplementary Planning Documents, a reminder
As used by the City of London to introduce a Retrofit first policy.
The what, how, why and when of deposit return schemes
Circular economy steps for plastic bottles and cans in England and Northern Ireland draws.
Reporting on Payment Practices and Performance Regs
Approved amendment coming into effect 1 March 2025.