What is LEGO® Serious Play® and how does it work?

It is a facilitation method in which each participant builds a three-dimensional model in response to a serious question, then tells the group what the model means. The central rule is that everyone builds and everyone tells, so the whole group contributes, not just the three people who usually speak. The second rule, just as important, is that the group questions the model, not the person: the right question is what the red piece on top means, not why you think that. The difference seems small and completely changes the temperature of the conversation, because it moves attention from the person to the object.

When is it worth using LEGO Serious Play?

When the subject is abstract or emotionally charged: vision, values, the identity of a team or a product, the relations between departments, a tension everyone feels and nobody formulates. It is also worth it when the conversation is dominated by a few strong voices, because the method's protocol neutralises them without accusing anyone. It is not worth it when the decision is simple and urgent, when it has already been made and a formal validation is being sought, or when the team lacks the basic technical knowledge on the subject. You don't need bricks to choose a launch date.

How long does a LEGO Serious Play session take and for how many people?

From half a day, for a single question with one level of construction, to two days for team strategy with several rounds. The optimal group is 8 to 12 people per facilitator, because each participant tells the story of their model, and storytelling time is the real limit. Above 12, you work on parallel tables, with additional facilitators. Below 6 participants the method loses value, because the diversity of models that makes the conversation interesting disappears.

6 October 2026 · the Facilitare.ro team

When LEGO® Serious Play® is worth it and when it is just expensive play

The usual reaction when someone proposes LEGO bricks in a management meeting is a raised eyebrow. It is a healthy reaction. The method has a fairly narrow field of application, and outside it, it is exactly what it looks like: a pleasant and expensive day.

Below, the four situations where it earns its money, the three where it doesn't, and the step everyone skips and without which you are left with nice photos.

Adult hands building small models from coloured plastic bricks on a wooden table, with other finished models alongside. — The hands choose the metaphor, and the explanation comes afterwards, to give the metaphor meaning.

Why a few bricks would work

The mechanism is less mysterious than it seems. When you ask someone to answer an abstract question in words, you get the formulation they have already practised. When you ask them to build a model and only then explain it, the order is reversed: the hand chooses a metaphor, and the explanation comes afterwards, to give the metaphor meaning. What comes out isn't necessarily more true, but it is almost always different from the usual speech.

The second mechanism is the distribution of speaking. In a free discussion, three people cover 70% of the time. Here everyone builds at the same time and everyone tells their story in turn, so participation no longer depends on who imposes themselves. It is a structural change, not one of goodwill.

The group questions the model, not the person who built it. Almost all the safety in the room comes from that.

Four situations where it earns its money

An abstract subject. Vision, values, the identity of a team or a product. Exactly the topics where ordinary discussion produces words that nobody contradicts and nobody uses.
A tension nobody formulates. The relationship between two departments, a diffuse dissatisfaction. The model gives an object that can be talked about, and that is much easier than naming a person directly.
Dominant voices. When you know beforehand who will talk and who will stay quiet, the protocol does the job a moderator's insistence can't.
Mixed teams with different languages. Technical and commercial, headquarters and field. The physical metaphor is neutral ground on which neither jargon has an advantage.

Three situations where it is money thrown away

A simple and urgent decision. You don't build a launch date. If the question has an answer that can be calculated, any exploratory method is an expensive delay.
The decision has already been made. The worst possible use and, unfortunately, not a rare one. Participants feel it in the first hour, and the cost is paid in credibility, not money.
The basic knowledge is missing. If the team doesn't know enough about the subject, you will build beautiful models on wrong information. Here you first need an expert to explain, and only then a participatory method.

The quick filter: if you can answer the question with a number or a yes or a no, you don't need this method. If the answer is a sentence that every person on the team would phrase differently, you do.

The step everyone skips

A session has six steps: the skills warm-up, the question, individual construction, the story of each model, the group's shared model and the translation into text. The last one is the one that gets cut, usually because time has run out and people are already satisfied with what happened.

Without it, you are left with beautiful photographs and nothing for Monday morning. The translation means that what was built becomes working principles, decision criteria or an identity formulated in the team's own words, written on paper, verifiable in a month. It takes the last hour of the day. If your provider doesn't have it in the agenda, ask why.

The question decides the session

More than the kit of pieces, more than the facilitator, the question decides what comes out. "What does our team look like in two years" and "what is in our way right now" produce two completely different days, with the same people and the same bricks.

That is why the question is formulated beforehand, together with the client, and why it is the first thing I ask about on a request for a quote. A provider who accepts the topic exactly as you gave it, without any rephrasing, will deliver you a pleasant day.

What remains at 30 days

The part nobody promises in the proposal and that shows up most often is the shared language. People keep referring to the models they built as a shortcut: one sentence replaces a discussion that used to take an hour. It is the only effect I have seen survive consistently, and it appears only if the translation step was done.

The format details, what you receive at the end and how we work with larger groups are on the method page. And if you aren't sure your problem is one of identity or vision, the Team Compass starts from the blockage, not from the method.

See what a session looks like

The steps, the format, what you receive at the end and the situations where we tell you it isn't the right method for you.

The LEGO® Serious Play® page