The Head Contract (HC-1) templates are used for traditional fixed-time construction contracts. Pricing is determined based on a lump sum, a schedule of rates, or a combination of both.
Depending on the extent of the design completed prior to engagement, the HC-1 can be used for:
- construction only
- design and construction
- document and construction delivery.
Contract and tender documents
Invitation to register interest (DOCX, 136.82 KB)
Tender documents (DOCX, 259.27 KB)
Conditions of contract (DOCX, 479.45 KB)
Disclaimer and confidentiality agreement (DOCX, 88.71 KB)
Changes
The update summary provides an overview of the changes between the current published versions of the Contract and Tender documents and their previous versions. This resource assists those who have already begun drafting Contract and Tender documents by identifying the changes, reducing the need to restart the drafting process.
Update Summary – October 2025 (PDF, 191.06 KB)
Update Summary – December 2025 (PDF, 170.35 KB)
Schedule of collateral documents
The Schedule of Collateral documents consists of supplementary templates that are referenced within, and are required to be used under and in accordance with, the template Conditions of Contract. The collateral documents support effective contract administration, consistency across projects and reflect the Commonwealth's requirements in respect of the matters to which each template relates. They have been drafted to align with the template Conditions of Contract and are intended to be finalised on a project specific basis as indicated within each template.
Approved security unconditional undertaking (DOCX, 30.19 KB)
Collateral warranty (DOCX, 25.55 KB)
Deed of covenant - Consultant (DOCX, 48.69 KB)
Deed of covenant - Subcontractor (DOCX, 53.69 KB)
Deed of guarantee, undertaking and substitution (DOCX, 37.7 KB)
Deed of novation - Consultant (DOCX, 30.77 KB)
Design certificate - Consultant (DOCX, 27.93 KB)
Design certificate - Contractor (DOCX, 29.99 KB)
Design certificate - Subcontractor (DOCX, 29.54 KB)
Expect determination agreement (DOCX, 35.74 KB)
Moral rights consent single author (DOCX, 40.48 KB)
Moral rights consent multiple authors (DOCX, 40.61 KB)
Payment claim (DOCX, 67.24 KB)
Payment statement (DOCX, 45.32 KB)
Proforma notices
The Proforma notices are designed to support effective contract administration and communication. The notices align with the template Conditions of Contract and are intended as a starting point to be developed and completed by the person issuing the notice having regard to the specific Contract and circumstances of the matter to which the notice relates.
Proforma notices (DOCX, 57.71 KB)
Previous version
The previous version of the Head Contract templates can be accessed via the Government web archive. It is to be used for the purpose of contract management only.