Client Architect Agreements

What Is a Client Architect Agreement?

The contract between an architect and their client, what it covers, and why every architect in Australia needs one in writing before starting work.

Why the agreement is so often misunderstood

A Client Architect Agreement is the contract that sets out the terms on which an architect provides architectural services to a client. It is easy to confuse with the building contract, but they are different instruments: the client agreement is between the architect and the client, while the building contract is between the owner and the builder. On many projects the architect administers the building contract while also being engaged under a separate client agreement.

That confusion has consequences. Architects sometimes assume a proposal, an email, or a purchase order is enough, or that the building contract covers their appointment. It does not. Without a proper client agreement, the scope, the fee, the liability position, and the ownership of the design are all left uncertain, which is exactly where disputes begin.

It is mistaken for the building contract, which is a separate agreement between owner and builder.
A proposal or email is treated as a substitute for a proper written agreement.
Scope, fees and liability are left undefined until something goes wrong.
Copyright and moral rights in the design are overlooked entirely.

What a Client Architect Agreement covers

A sound client agreement records the scope of services and how variations are charged, the fee basis and payment timing, a right to suspend for non-payment, a limitation of liability aligned to the architect’s professional indemnity insurance, and the treatment of copyright and moral rights. It also sets out how disputes are resolved and how the engagement can be brought to an end.

In Australia the codes that govern registered architects require a written client agreement before services are provided. The Australian Institute of Architects publishes a standard form, the Client Architect Agreement (current version CAA2024), and some registration boards offer short forms. These are sound starting points, and whether they suit a particular commission is a question worth checking before signing up to terms you will be held to.

Client Architect Agreement vs building contract

Comparison: Client Architect Agreement against Building contract.
Aspect	Client Architect Agreement	Building contract
Who the parties are	The architect and the client.	The owner and the builder.
What it governs	The architectural services: scope, fees, liability, copyright.	The construction work: payments, variations, defects, completion.
The architect’s position	The consultant engaged by the client.	Often the contract administrator, on ABIC contracts.
Common standard forms	Institute CAA2024; registration board short forms.	ABIC contracts, tailored through Special Conditions.

Who this protects

Sole practitioners

The document that protects your fees, caps your liability, and keeps control of your designs from your very first commission.

Growing practices

A consistent set of terms every architect in the practice can use, so risk does not vary with who signs the client.

Clients

A clear record of what the architect will do, what it costs, and how the relationship is managed if things change.

Common questions

Do I legally need a written Client Architect Agreement?

In every Australian state and territory, the codes that govern registered architects require a written agreement with the client before architectural services are provided. Beyond that requirement, a written agreement is what fixes your scope, protects your fees, and limits your liability.

Is a Client Architect Agreement the same as a building contract?

No. A Client Architect Agreement is between the architect and the client and governs architectural services. A building contract, such as an ABIC contract, is between the owner and the builder and governs the construction work. They are distinct, and each needs to be right.

What does a Client Architect Agreement include?

Typically the scope of services and variations, the fee and payment terms, a right to suspend for non-payment, a limitation of liability aligned to professional indemnity insurance, copyright and moral rights, and provisions for dispute resolution and termination.

Can I use the standard Institute agreement?

The Australian Institute of Architects CAA2024 is a sound starting point for many engagements. Whether it suits a particular project depends on the work, the client, and your insurance, so a short review before you rely on it is worthwhile.

Get advice on your Client Architect Agreement

From reviewing an existing agreement to tailoring a standard form or drafting a new one, get advice from a solicitor who is also a registered architect.

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