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How to choose your interior architect: 5 essential criteria to avoid mistakes

How do you choose an interior architect? Discover 5 key criteria: style, process, budget, site supervision, and references. Practical advice to select the right professional and secure your project.

🗓️ Date: 2026-01-26 ⏱️ Reading time: 4 min

Finding the right partner to transform your home is a crucial step. Between technical expertise, aesthetic style, and budget management, here are the key points to help you choose the right interior architect.

1. Check qualifications and insurance (Safety first)

Interior architecture is not regulated in the same way as licensed architecture, but essential guarantees still apply.

  • Training: prefer a qualified professional (schools recognized by bodies such as the CFAI, for example).
  • Decennial insurance: non-negotiable. It protects you for 10 years against defects impacting the structure of the works.
To verify: ask for an up-to-date, named certificate (decennial + professional liability), not a vague “insured” claim.

2. Review the portfolio and design language

Every interior architect has a signature. By reviewing their work (portfolio), you can see whether they adapt across styles or focus on a specific aesthetic (Scandinavian, industrial, Haussmann, minimalist).

Tip: check the quality of 3D visuals and “before/after” projects to judge how relevant the transformations are.

3. Look at reviews and reputation

Online word of mouth is one of your best tools. Read Google reviews or recommendations on specialized platforms. A strong interior architect is often praised for listening skills, reliability, and the ability to solve technical surprises.

Good sign: concrete feedback about site supervision, clear communication, and deadlines being met.

4. Understand pricing structure and quotes

Financial transparency is the foundation of trust. An interior architect is usually paid in one of two ways:

  • Fixed fee: typically for the design phase (plans, concept).
  • Percentage: often around 10% to 15% of the total construction budget for site supervision.
Watch out: an unusually low quote can hide missing insurance, limited supervision, or exclusions that appear later.

5. The “fit”: the human side of the project

You’ll be working together for months. Clear, smooth communication is essential. During the first meeting (often a consultation visit), check whether the professional understands your needs, respects your budget, and offers concrete solutions you hadn’t considered.

Good test: you leave with a clear recap (priorities, constraints, first directions, next steps).

What to verify

Before you commit, make sure you have these items in writing. Simple, but it prevents most unpleasant surprises.

Item to verify Why it matters
🛡️ Insurance certificate Legal and technical protection.
🧾 Detailed quote Avoid hidden costs during the works.
📅 Provisional schedule Confirm delivery timeline expectations.
🤝 Contractor network Work with reliable, well-coordinated trades.

Conclusion

The right interior architect secures your project as much as they elevate it: insurance, method, transparency, and the ability to run the site smoothly. Take time to compare, and choose a partner you can see yourself working with over the long term.

Remember: insurance + clear quote + timeline + recent references + smooth communication.
Pro tip: request a “proof & scope” pack before signing: up-to-date certificates, a line-by-line quote, a provisional schedule, and a written supervision scope (who does what, when, and how).

Key takeaways

Choosing an interior architect mostly means checking the essentials: insurance coverage (decennial + professional liability), style consistency through the portfolio, reputation, transparent pricing, and the “fit” in communication. If one point feels off (especially insurance), walk away.

Pro tip

Before signing, request a document pack: decennial insurance certificate + professional liability, a detailed quote broken down line by line, a provisional timeline, and a shortlist of contractors they intend to work with. If they hesitate, stay vague, or refuse, that’s a red flag.