A contract enabling contractor input during the design phase of complex projects.
The Investigation Works contracts may be used in advance of building or civil engineering works to establish the condition of a structure or for below-ground investigations,
When using this contract, it is recommended you read Guidance Note GN 1.5 for more information.
The Commercial Skills Academy (CSA) offers practical training for public servants in delivering public works projects. Find out more on our Learning page
ITT-W1a Restricted Procedure v2.1 25-11-2025
ITT-W3 Note to Employers 23-04-2013
ITT-W3 Invitation to Tender Letter 18-07-2011
ITT-W3 Open Procedure v2.0 18/11-2024
MF 1.25 Appointment of Project Supervisor
MF 1.26 Rates of Pay and Conditions of Employment Certificate
For more templates, Go to the Model Forms page