How to evaluate a consultant's portfolio and past projects before shortlisting

A portfolio's job is to make a firm look good, which is exactly why it's a weak tool for evaluating fit on its own - every portfolio is curated to show the best photos of the best-lit rooms from the best-performing projects. That doesn't mean portfolios are useless; it means you need to know what to actually look for in one, beyond whether the photos look impressive.

Look for scale and complexity similar to yours, not just sector

A portfolio full of striking 50,000 sq ft corporate headquarters tells you very little about whether a firm can deliver a focused 3,000 sq ft office well - the two are genuinely different projects with different constraints. Look specifically for past projects close to your actual square footage, headcount, and complexity level, not just "office projects" as a category. A firm whose best work is dramatically larger or smaller than your project may still be a great fit, but that's worth a direct conversation, not an assumption from photos alone.

Ask what happened after the photos were taken

A portfolio shows a finished space on its best day. It tells you nothing about whether the project came in on budget, whether it finished on schedule, or whether the client would hire the firm again. Ask directly: what was the original budget vs. final cost, what was the planned timeline vs. actual, and can they connect you with that past client for a reference. A firm confident in its own delivery track record will answer this readily; hesitation here is itself useful information.

Check whether the portfolio reflects the actual team you'd get

At larger firms in particular, a portfolio often represents work led by a specific senior designer who may or may not be assigned to your project. Ask specifically who would lead your project and whether they personally worked on the portfolio pieces that impressed you - a firm's overall portfolio and the specific team you'd be assigned can be different things.

Look past the hero shots for functional detail

The photos that sell a portfolio are usually wide shots of a striking reception or a well-styled breakout area. Look instead for evidence of how a firm handles the less glamorous parts of a project that actually determine whether an office works day to day: storage solutions, cable management, acoustic treatment in open areas, and how meeting rooms are actually laid out for real use rather than photographed empty.

Where verified signals help more than curated photos

Where it's available, independent signals - a firm's registration completeness, self-declared licensing and insurance on file, and real ratings or feedback from past clients who actually engaged them - are more useful than portfolio photos alone, precisely because they're harder to selectively curate than a gallery of best-case images. Treat a strong portfolio as a reason to have the conversation, not as the decision itself.

A short list of questions a portfolio alone can't answer

• Did this project finish on time and on budget - not just "did it turn out well"?
• Who specifically would lead our project, and did they lead the projects shown?
• Can we speak to a past client directly?
• How does this firm handle the parts of a project that don't photograph well - storage, acoustics, day-to-day usability?

Bottom line: a portfolio is a starting point for a conversation, not a substitute for one. Use it to find firms worth talking to, then ask the questions that photos can't answer before you commit to a shortlist.