Architect contracts explained for homeowners

Why a written contract matters

The California Architects Board tells homeowners to insist on a written contract even where the law does not require one, and to keep written records throughout (CAB Consumer's Guide, read 10 October 2026). California's list of required contents, in force since 1996, is a useful minimum for anyone, because it is a list of the things people fall out over.

• A description of the project.
• A description of the services the architect will provide.
• The compensation and the method of payment.
• The architect's name, address and licence number.
• Your name and address.
• The project address.
• The procedure for additional services and for changes.
• The procedure for ending the agreement.
• Who owns the drawings and how they may be used (the instruments of service).
• A notice that architects are regulated by the California Architects Board. Elsewhere, the equivalent is the name of the state board that licenses your architect.

If a proposed agreement is missing any of these, ask why before anything else.

Which AIA forms are current for a house

Most architects use standard forms published by AIA Contract Documents rather than writing from scratch. For a house, the current small-project forms are these (AIA Contract Documents, B105 summary and Small Projects family, read 10 October 2026).

A search for a sample or template architect contract turns up plenty of documents of unknown origin (Google autocomplete, US, 10 October 2026). The forms above are the ones the profession actually uses for houses, and the checklist tells you what to look for inside whichever document you are handed.

The clause checklist

The California Architects Board recommends that a homeowner's contract cover the items below, and adds fee questions whose answers should also be written in (CAB Consumer's Guide, read 10 October 2026). Tick each one off in the document in front of you.

• The project description and address.
• The basic services, itemised, and the fee for them.
• What counts as an additional service, and how it is priced.
• The procedure for changes: who may ask, how a change is approved, and how it is priced. AIA tells you to ask what happens to the fee if the scope changes; the answer belongs here (AIA, Before you begin your project, 18 December 2024).
• The schedule and its milestones.
• The estimated construction budget, and exactly what it includes.
• Contingencies, and how cost escalation is handled.
• Approval points between phases, so nothing moves on without your sign-off.
• Reimbursable expenses, and how they are billed.
• The consultants (structural, mechanical, electrical, plumbing, geotechnical, interior, landscape), who hires them and who pays them.
• The payment schedule.
• The retainer, if any, and how it is applied against later invoices.
• What is owed if either side ends the agreement, and the procedure for ending it.
• Whether construction observation and help with bidding are included, and how often the architect will visit site.
• Who owns the documents, including electronic files, and who may reuse them.
• The dispute procedure: mediation, arbitration or the courts, and in what order.
• Whether redesign to meet the construction budget is charged for. The CAB's question is exactly that.
• Who pays for changes required by the building department, and how changes you or the contractor request are priced.
• The architect's licence number, and the insurance they carry and its limits, which the CAB lists among the questions to ask at interview.

Payment by phase, and how changes are handled

Most agreements split the work into phases, from concept design through developed design and construction drawings to permit and pricing and then construction, with an invoice at each approval point. The CAB's recommended items cover the mechanics: the payment schedule, the retainer and how it is credited, and what is due on termination. Its advice on the two ends of the money is plain: be wary of excessive advances or retainer fees to begin services, and make the final payment only when the services are complete (CAB Consumer's Guide, read 10 October 2026). AIA's consumer guidance adds that hourly work is usually invoiced monthly, often with a cap, and that a fixed fee is not recommended until the scope is tightly defined (AIA, How to work with an architect, read 10 October 2026).

Changes are where contracts earn their keep. Three kinds happen on almost every project: a change you ask for, a change the contractor needs because of what was found on site, and a change the building department requires. The CAB's fee questions treat each separately, and so should the contract. Without a written basis for pricing each, every change becomes a negotiation at the worst possible moment.

One more thing the CAB explains that most homeowners never hear about: if fees go unpaid, an architect in California can record a design professional's lien before construction starts, although not against a single-family owner-occupied home with a construction cost under $100,000, and a mechanics lien once construction is under way (CAB Consumer's Guide). Paying on time, and disputing invoices in writing rather than by withholding, keeps that off the table.

Red flags before you sign

• No written contract at all, or an offer to start on a handshake and paper it later. The CAB's advice is to insist on a written contract even where exceptions apply.
• A large retainer. The CAB warns against excessive advances to begin services.
• No licence number in the document. California requires it, and asking for it anywhere is reasonable.
• Services described in one line. Full architectural services without an itemised list means nobody has agreed what is basic and what is extra.
• No procedure for changes, no termination clause, or no ownership clause for the drawings. These are three of California's ten required items for a reason.
• Pressure to pay in full before the services are complete.
• The title without the licence. In Texas, someone working under the single-family exemption may not call themselves an architect or an architectural designer (Occupations Code 1051.606).
• An architect offering to sign drawings someone else prepared. The CAB lists signing someone else's plans, along with aiding unlawful practice, fraud, negligence, misrepresenting qualifications, conflicts of interest and incompetence, among the grounds for discipline.

None of this is about distrust. A clear contract protects the architect as much as it protects you, and a good one will expect you to ask. Our first-meeting guide covers the questions that lead up to this document, and our cost guide covers the fee structures you will see inside it.