Architect-administered contract

An architect-administered contract is a building contract where the architect acts as the contract administrator (on commercial contracts, the superintendent): the party who administers the contract between owner and builder during construction.

What the architect does in this role:

• Issues instructions and answers the builder’s requests for information.
• Assesses and certifies progress claims, deciding what the builder is paid each month.
• Assesses variations and extension-of-time claims.
• Inspects the works at key stages and at practical completion.
• Acts as first-line decision-maker on disputes about the works, and is meant to act impartially between owner and builder even though the owner pays them.

Where it’s used: common on architect-designed homes and on commercial contracts (for example AS 4000 / AS 4902, where the role is called the superintendent). Less common on volume or project-home builds, which are usually administered by the builder under a domestic contract.

Why it matters to a builder:

• A third party, not the owner, decides your progress payments, variations, and EOTs. Get your claims and notices in correctly and on time: the administrator assesses them against the contract, not on goodwill.
• The architect wears two hats, the owner’s designer and the (supposedly impartial) contract administrator. Watch for design problems being administered as “builder’s defects”.
• Know the contract: how claims are submitted, the assessment timeframes, and how to dispute a certificate you disagree with.

Also known as: superintendent-administered contract; architect as contract administrator.

Related

• Contract administrator
• Practical completion
• Extension of time

See also

• Variation

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Last updated: 2026-05-24. Verified: 2026-05-24. Quarterly review for currency.