A mini container home that doubles in width when unfolded

On the road, it looks like a simple shipping container being transported by a truck. Once set up, it transforms into a luxurious residence, a mini container home. With its Hermitainer model, the Polish studio Flexicube has created a hybrid that’s a cross between a high-end RV and a transportable miniature home. Only two units exist today, designed for a wealthy and nomadic clientele. These owners are seeking a mobile pied-à-terre that’s just as comfortable as a permanent second home.

The project’s name blends the idea of a refuge, a hermitage, with that of the shipping container that houses it. This dual inspiration guides every design choice, from the floor plan to the finishing touches. Flexicube takes the modular concept to its logical conclusion, resulting in something akin to a small private mansion on wheels. The result is surprisingly refined, a far cry from the usual conventions of container housing.

The market for mini container homes generally caters to those on tight budgets. Many such units originate from China and are sold on Amazon, for example. The Hermitainer flips this approach on its head and targets a clientele accustomed to custom-made solutions. It borrows from the worlds of luxury yachts and motorhomes in terms of its fully equipped layout and attention to detail.

A space that doubles in width when deployed

In transport mode, the Hermitainer retains the dimensions of a standard shipping container. It measures 2.5 meters wide and 12 meters long, offering a floor area of approximately 30sqm, enough to travel freely on European and North American roads (though not on narrow country roads!). This compact design makes it easy to load onto a truck or ship, just like any standard container. From the outside, nothing hints at the volume hidden inside.

Once on site, a central section unfolds, bringing the total width to 5 meters. The interior space then nearly doubles. This slide-out mechanism completely changes the perceived proportions from the inside. The transition from a closed module to an open living space takes only a few minutes.

Retractable doors allow the space to be fully enclosed before each trip. This enclosure protects the furniture and equipment from impacts and the elements. Snap-lock handles secure each opening during transit. The roof is equipped with solar panels, discreetly integrated into the roof structure. Viewed from a distance, the closed unit is almost unremarkable.

The exterior shell has a dark, uniform color, similar to anthracite gray. This understated color is reminiscent of classic industrial shipping containers, without attempting to imitate them completely. It allows the Hermitainer to blend easily into its surroundings.

Solid oak and raw concrete for a lived-in interior

Inside, the layout follows a linear design familiar to tiny house enthusiasts. The master bedroom occupies the front of the home, while the bathroom is located at the rear. The kitchen and living room share the central space between the two ends. This layout optimizes every square meter and ensures smooth traffic flow. Each area maintains a clear function. You can get the best look at it in the YouTube videos in this article.

Solid oak furniture dominates the space and brings an immediate warmth to this home with its metal exterior. The exotic wood floors reinforce this impression of a cozy interior, far from the austere image often associated with container homes. The raw concrete walls balance the warmth of the wood with a more mineral and contemporary touch.

Its designers have carefully considered every detail to minimize the industrial appearance of the original shipping container. Appliances are fully integrated into the storage units, a choice that preserves the clean lines of the living area. The triple-pane windows provide thermal and sound insulation comparable to that of a permanent home. This performance holds up even in extreme cold or heat. The bathroom features the same high-quality materials as the rest of the home. Large picture windows cut through the steel facade and flood the interior with natural light. This direct lighting highlights the grain of the oak and the texture of the raw concrete.

Self-sufficiency designed for off-grid living

The Hermitainer operates completely off the grid, without relying on any external connections. A 5 kW diesel generator powers the equipment under all circumstances, even when there is no sunlight. An 800-liter fresh water tank covers the necessary needs for several consecutive days. A Victron solar system complements this energy self-sufficiency and significantly reduces the generator’s usage.

This technical combination transforms the Hermitainer into a truly nomadic home. It can be set up on isolated land, a private beach (so some lucky people actually own their own private beach?!) or a vineyard, without any prior infrastructure. Owners gain a level of freedom rarely found with this level of interior comfort. This energy independence partly justifies the unit’s very high price point (to say the least).

The diesel generator takes over during extended periods without direct sunlight. This hybrid solution ensures year-round use, even in very cold climates. Owners thus avoid any disruption to their comfort while on the move.

Two units, two very different destinations

Flexicube charges approximately €400,000 per unit, or nearly $464,000. This price places the Hermitainer among the most expensive mobile homes on the market, on par with certain custom-built motorhomes.

The first unit arrived in Ibiza in 2025, on private property where it serves as a seasonal residence. This Spanish island offers an ideal climate for enjoying the extended living area for much of the year. The second unit crossed the Atlantic in 2026, bound for Nevada, a region with a completely different climate and landscape. These two destinations clearly illustrate the project’s purpose, designed for a nomadic clientele. Owners are looking for a stylish retreat, no matter where they are in the world.

Ibiza’s Mediterranean climate encourages extended outdoor living around the unfolded module. The Nevada desert, on the other hand, experiences much more extreme temperature fluctuations. Triple-pane windows and reinforced insulation therefore prove essential in this second setting.

Our take on the design and layout

The Hermitainer strikes a delicate balance between raw industrial style and true comfort. It retains the look of a shipping container while offering the comfort of a high-end home. The combination of solid oak, exposed concrete, and exotic wood creates a warm atmosphere, similar to that of a contemporary chalet.

The choice of a linear layout is simple and effective. It makes the most of a relatively small space without ever feeling cramped. Its central kitchen and living room form the true heart of the home. They are situated between the bedroom at the front and the bathroom at the back.

The slide-out mechanism completely transforms the experience of the space once you’re settled in. It restores the proportions of a real living room. This transformation, from a closed shipping container to a spacious interior, is what makes the project so compelling. Few mobile homes offer such a stark contrast between their transport silhouette and their actual living space.

The finishes chosen by Flexicube reflect a genuine focus on comfort, not just technical prowess. The triple-pane windows, built-in storage, and solid wood furniture make this mobile home feel more like a true second home. This model demonstrates that a shipping container can be refined without losing any of its original raw appeal.