Lumibricks- Secret Haven on Iron Cinder Street

The Secret Haven on Iron Cinder Street

On Iron Cinder Street, beneath the Aeronauts and far from the empire’s polished towers, there’s a workshop few people know about. Broken machines end up there, discarded parts are repaired, and quiet acts of defiance take place out of sight.

That story sits at the heart of the Lumibricks Steampunk Mechanical Workshop (11015), and it’s more than just background flavour. This set is part of Lumibricks’ wider Steampunk World narrative, and it genuinely feels like a chapter within it rather than a standalone scene.

Known as The Secret Haven on Iron Cinder Street, the workshop exists for the underclass — a place where broken gears turn again, machines are reborn, and lost hopes are quietly restored. Each repair is an act of resistance, a memory, and a refusal to forget. That sense of purpose carries through the build in a way that feels natural rather than forced.

This was one of those builds that felt good to sit with almost immediately.

The Story

The Mechanical Workshop makes a strong first impression, starting with the box and overall presentation, which feel genuinely premium. From there, the build settles into something familiar and comfortable — a well considered steampunk design that clearly belongs in Lumibricks’ growing Steampunk World series.

This is the newest entry in that series, and it very much feels connected to what came before. It sits comfortably alongside other releases like the Steamphant and the Memory Magic Shop, reinforcing that Lumibricks aren’t just producing themed sets — they’re building a coherent world.

I’ve always enjoyed steampunk, and at this point I almost associate the style directly with Lumibricks. The colours, the warm lighting, and the balance between industrial detail and character feel very natural. Nothing feels forced or overworked.

You can also really see the growth in this company. Every set brings small but noticeable improvements, and this one continues that pattern in a quiet, confident way.

I enjoyed this build a lot.

Box & Presentation

This genuinely feels like a premium product.

The box itself is solid and weighty, with a strong, confident design that immediately sets expectations. Opening it feels special.

Inside, everything is well protected and neatly laid out. The manuals deserve special mention — they’re beautifully printed, clear, and feel properly finished. I don’t often comment on manuals, but these stood out. Combined with the overall packaging, it reinforces that this isn’t just a toy in a box, but a carefully presented product.

The lighting kit is packaged clearly and feels like part of the set rather than something added later. At this point, lighting feels like a normal part of the Lumibricks experience rather than a feature they’re still figuring out.

If I had one small request going forward, it would be one bag per build section. It’s not a deal breaker, but it would make an already smooth experience even cleaner.

Build Experience

The build itself is straightforward in the best way. The steps make sense, progress feels steady, and there’s always something happening to keep things engaging.

What really stood out was the lighting installation. Normally I expect at least one small interruption — awkward wire routing, a step that breaks the flow, or something that needs adjusting later.

That didn’t happen here.

The lighting kit went in cleanly and easily. Everything lined up properly, and nothing felt rushed or awkward. It’s one of the smoothest lighting installs I’ve done, and it genuinely added to the experience rather than pulling focus away from it.

Set Details

Model Number: 11015

Piece Count: 2006 pieces

Price: $109.99

Minifigures: 4

Lighting: Integrated LED lighting kit

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Design & Features

This is a slightly quieter set in terms of movement compared to some other Lumibricks steampunk builds, but that’s not a negative. There’s less going on mechanically, but what is here feels well chosen and well executed.

The working crane is a highlight. It’s satisfying to operate, feels properly integrated into the workshop, and adds just the right amount of interaction.

One feature that genuinely impressed me is the opening mechanism. The workshop opens by splitting cleanly down the centre, giving full access to the interior on both sides.

This is the first Lumibricks set I’ve built where the opening system feels completely nailed. It’s simple, clean, and solid. Nothing flexes, nothing warps, and nothing feels stressed. It opens and closes smoothly, holds its shape, and has a really nice clutch feel that makes it easy to control.

I also really like that some of the lighting responds to interaction — placing figures in specific spots triggers lights, which reinforces the idea that this is a working space rather than a static display.

I also like that the vehicle can be rebuilt into a helicopter. Alternate builds like this add genuine value when they’re handled thoughtfully, and that’s the case here.

Steampunk as a Theme

Lumibricks continue to handle steampunk very well. Across their releases, there’s a consistent visual language built around warm lighting, industrial textures, and restrained character.

With the Mechanical Workshop, that language feels settled. It no longer feels like experimentation — it feels like confidence. The lighting and colour choices work naturally with the theme, and the whole set feels cohesive rather than busy.

Build Quality

Brick quality is very good. Connections are firm, alignment stays clean, and the finished model feels solid when handled. There were no weak sections and no moments of frustration during the build.

It feels like a set designed to be built and enjoyed, not just assembled and shelved.

Display

Once completed and lit, the workshop has a strong but understated presence. The lighting adds depth without overpowering the structure, and the mechanical details give it a sense of life.

It works well as a standalone display and fits naturally alongside other steampunk sets. It looks like a working space, not just a model.

Minifigures

Minifigures still aren’t the main draw for me, but I appreciate what Lumibricks are doing with them here.

This set includes several important characters from the Steampunk World narrative: Irina, the exiled senior engineer of the empire and creator of the Steamphant; Zem, a wandering street mechanic; Old Iron, a discharged automaton soldier; and Lily, an orphaned flower girl left behind by the Mechanical City Renewal Project.

From a storytelling perspective, this works well. The figures help frame the workshop as a place with history and meaning rather than just a backdrop.

While figures aren’t what I personally come to Lumibricks sets for, they make sense here and will add to the experience for those who enjoy the narrative side of the hobby.

Score — 9 / 10

This was an enjoyable, relaxed build with excellent lighting integration, thoughtful mechanical features, and one of the best opening mechanisms Lumibricks have produced so far.

It doesn’t quite reach a perfect score, but that’s more a reflection of how high Lumibricks have set their own standard than any specific shortcoming.

Final Thoughts

This is a confident, well considered steampunk build that plays to Lumibricks’ strengths.

I enjoyed building it, I enjoyed lighting it, and I’m very happy to have it on display.

It feels cohesive, mature, and quietly assured — and it shows just how far Lumibricks have come.

A perfect addition to the Steampunk World that Lumibricks have created.

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