What Should You Look For When Interviewing Interior Designers?

Hiring the wrong interior designer isn't just a bad experience — it's an expensive one. A mismatch usually doesn't show up until you're already committed: budget overruns, a design direction that doesn't fit your brand, a timeline that keeps slipping. Most of that risk is visible earlier than people realize, if you know what to look and listen for in the first conversation.

Here's a practical framework for interviewing interior designers — for a restaurant, retail store, office, clinic, or any other commercial space.

1. Look at Relevant Portfolio, Not Just a Beautiful One

A beautiful portfolio isn't the same as a relevant one. Look specifically for projects in your category — a designer who's done stunning residential work isn't automatically equipped to solve a commercial kitchen flow, ADA-style accessibility requirements, or high-traffic retail circulation.

Ask: "Can you show me a project similar in scale and category to mine, and walk me through a problem you had to solve on it?" A designer who can speak specifically about a real constraint they navigated tells you far more than a portfolio of polished final photos ever will.

2. Understand Their Design Process, Step by Step

A designer with a clear, repeatable process is generally lower-risk than one who describes their approach vaguely. Ask them to walk you through their process from first meeting to handover — how concept development works, how many rounds of revisions are typical, how drawings get approved, how construction is managed.

Watch for: Vague answers like "it just depends" to every process question. Some variation is normal, but a designer should still be able to describe a structured default process, not reinvent it for every client.

3. Ask How They Handle Budget — Honestly

This is where a lot of projects go wrong. Ask directly: "What typically causes budgets to go over on projects like mine, and how do you manage that risk?" A designer with real experience will have a specific, honest answer — material lead times, structural surprises in older buildings, scope changes mid-project. A designer who claims budgets "never" go over is either inexperienced or not being straight with you.

Also ask: Whether their quotes are itemized (design fee, procurement, construction, contingency) or bundled into one number. Itemized is almost always better for your ability to make trade-off decisions later.

4. Ask About Design-and-Build vs. Design-Only

This distinction matters more than people expect. A design-only studio hands you drawings and steps back — you're responsible for finding and managing a contractor. A design-and-build studio manages the full process, from concept through construction, under one team.

Neither is inherently better, but the wrong fit for your situation creates real friction. If you don't have the time or experience to manage a contractor separately, a design-and-build studio significantly reduces your operational burden — worth asking directly which model they operate under, and why.

5. Ask for References — and Actually Call Them

A portfolio shows finished work; references tell you what the process was actually like to live through. Ask for at least one reference from a project completed in the past year, and ask that reference specific questions: Did the project finish on budget? On time? How did the designer handle problems when they came up, not just when things went smoothly?

Red flag: A designer who's reluctant to provide references, or only offers references from projects completed years ago.

6. Gauge Whether They Listen or Just Present

In the interview itself, pay attention to whether the designer is trying to understand your brand and business, or mainly presenting their own aesthetic point of view. A good commercial designer asks about your customer, your operations, your budget constraints, and your brand story before jumping into visual direction. One who leads immediately with "here's my style" regardless of what you've said about your business is a signal they may design for their own portfolio rather than for your brand.

7. Check Technical and Regulatory Familiarity

Especially for F&B, clinics, and other regulated categories, ask directly whether they're familiar with the specific code and compliance requirements for your business type — kitchen ventilation and fire safety for restaurants, accessibility and sanitation standards for clinics, occupancy limits for any high-traffic venue. A designer without this familiarity isn't necessarily disqualified, but it changes how closely you'll need to verify their drawings against a specialist consultant later.

8. Clarify Timeline and Communication Expectations Upfront

Ask how often you can expect updates, who your main point of contact will be, and what the typical response time is for questions during an active project. Misaligned expectations here — a client expecting daily updates paired with a studio that reports weekly — cause more relationship friction over the course of a project than almost any design disagreement.

Questions Worth Asking in Every Interview

• Can I see a project similar to mine, and what problem did you solve on it?

• What does your process look like, from first meeting to handover?

• What typically causes budget overruns on projects like mine, and how do you manage that?

• Do you offer design-only or design-and-build services?

• Can I speak to a recent client reference?

• What's your typical timeline for a project of this scale?

• How will we communicate during the project, and how often?

The Bottom Line

The best signal in an interior designer interview isn't how impressive the portfolio looks — it's how specifically and honestly they can answer questions about process, budget, and past problems. A designer who's comfortable discussing what's gone wrong on previous projects, and how they handled it, is almost always a safer choice than one who only wants to talk about what's gone right.

Kita Design Co. (PT Kita Desain Bersama) is a Jakarta-based commercial interior design and build studio working across F&B, retail, clinics, wellness, offices, and sports & fitness spaces. Happy to walk you through our process directly — get in touch to start the conversation.