View of the living room across a solid walnut dining table – reconstruction and interior of an Art Nouveau apartment by OOOOX
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Renovation of the TIVOLI Apartment

What was originally a generous Art Nouveau apartment had been forcibly divided into two units during the previous regime and gradually devastated. The renovation started from scratch — repairing the floors, replacing damaged beams and bringing the apartment back together as a single whole.

Almost none of the original elements had survived, so we rebuilt them. Cassette panelling, stucco, solid plank floors and radiator covers were paired with contemporary statement pieces, minimalist furniture and distinctive materials.

The concrete kitchen as a statement piece

The kitchen is one of the most striking contemporary interventions in an otherwise classical setting. It isn’t just “concrete in appearance” — it is genuinely assembled from cast concrete panels, including the drawer fronts. That’s precisely what stops it from feeling like a decorative effect and makes it read as a heavy, precise piece of architecture placed inside a historic interior.

We deliberately left it without upper cabinets so that it wouldn’t behave as yet another wall of things in the open living space. In their place, a mirror above the work surface visually extends the room and keeps the kitchen calm. Alongside the concrete island sits a lower unit with the sink and a tall appliance cabinet whose presence is closer to an old armoire than a conventional kitchen assembly.

View of a kitchen island made from cast concrete slabs, integrated planter and mirror by the kitchen worktop visually extending the space | reconstruction design by OOOOX
View into the living space with a concrete kitchen island, solid wood dining table and designer pendant light in an otherwise white interior | design by OOOOX
Detail of a kitchen island made from cast concrete slabs | Art Nouveau apartment reconstruction design by OOOOX Kitchen cabinetry without upper cabinets, mirror above the work area and tall appliance cabinet – reconstruction design by OOOOX Detail of a delicate designer handle on a tall dark wood kitchen cabinet | design by OOOOX
View of a kitchen island made from cast concrete slabs, integrated planter and mirror by the kitchen worktop visually extending the space | reconstruction design by OOOOX View of a kitchen island made from cast concrete slabs, integrated planter and mirror by the kitchen worktop visually extending the space | reconstruction design by OOOOX View of textured wall painting and a concrete kitchen island in the interior of the TIVOLI Art Nouveau apartment by OOOOX
Three-metre solid walnut dining table, designer pendant light and textured decorative wall painting | Art Nouveau apartment interior reconstruction design by OOOOX

The dining room as the heart of the apartment

The dining table is exactly the kind of statement piece around which an entire apartment begins to fall into place. It stretches over three metres, is made from solid American walnut, and we let the natural cracks and irregularities speak for themselves. These are held together with steel butterfly joints, so the table doesn’t feel polished — it feels more like a piece of material that has held on to its own strength.

Above it hangs an oversized light fitting that helps give scale to the large space. The dining room is therefore not just a place for a table and chairs, but the genuine centre of the apartment — the element that holds the living space together.

Three-metre solid walnut dining table, designer pendant light and textured decorative wall painting | Art Nouveau apartment interior reconstruction design by OOOOX
Detail of a three-metre solid walnut dining table with natural cracks joined by steel butterfly joints | Art Nouveau apartment reconstruction design by OOOOX Detail of a three-metre solid walnut dining table and designer light fixture above the table | Art Nouveau apartment interior reconstruction by OOOOX Detail of a three-metre solid walnut dining table and designer light fixture above the table | Art Nouveau apartment interior reconstruction by OOOOX

Extending the living room

The living space is anchored by a black Victorian fireplace with a bio insert. We had no interest in a romantic decoration or a historicising replica. We were looking for a simple, geometric form that would carry the strength of an original element while holding its own in a contemporary interior. In the end, we sourced the frame from Britain.

A strong layer of the space is also the distinctive wall painting. Originally we wanted to preserve only the scraped remnants of old paintwork, but new runs of services inside the walls would have destroyed the original composition entirely. So we didn’t abandon the idea — we simply translated it elsewhere. The result is a textured painting inspired by film set backdrops, executed at the time by someone from the Barrandov Studios workshops. The living room connects to a study separated by large sliding pocket doors. Here too we played with the details, and everything from the bookcase to the handles was made to measure.

 

Living area of an Art Nouveau apartment with a designer black upholstered armchair, open space connected to the dining area and kitchen | interior design and reconstruction by OOOOX
Detail of concealed radiators beneath historic window sills in the reconstruction of the TIVOLI Art Nouveau apartment | OOOOX Black Victorian fireplace with a bioethanol insert in the living space of an Art Nouveau apartment interior, textured wall painting and white flooring | reconstruction design by OOOOX Detail of a living room with a designer sofa and concrete coffee table | apartment reconstruction design by OOOOX
Detail of a designer door handle and designer planter in the hallway of an Art Nouveau apartment | OOOOX Study with a full-height bookshelf connected to the living area through pocket sliding doors, white wooden flooring | design by OOOOX Detail of a designer door handle and designer armchair in the hallway of an Art Nouveau apartment | OOOOX
Freestanding bathtub placed in the bedroom bay window – interior of an Art Nouveau apartment reconstruction | OOOOX

The bedroom with a bath in the view

The bedroom has a particular stillness that comes more from its proportions and atmosphere than from the quantity of its furnishings. It also contains a bath placed in the bay window on a raised platform, so you can look outside while lying in it. That moment alone gives the space something extra — it’s not just a bedroom with a bathroom, but a private corner that makes full use of what an old house has to offer.

The same principle that runs through the whole apartment holds here too: the historic frame stays, but the new interventions are unambiguously of today.

Bedroom with a freestanding designer bathtub placed on a platform in a bay window | reconstruction design of the TIVOLI Art Nouveau apartment | OOOOX
Bedroom with textured wall painting, dark wood wardrobe and designer light fixture connected to the bathroom – interior of the TIVOLI Art Nouveau apartment | OOOOX Freestanding bathtub placed in the bedroom bay window – interior of an Art Nouveau apartment reconstruction | OOOOX Detail of a sink and delicate vanity cabinet with a designer circular mirror, white interior of the TIVOLI Art Nouveau apartment | design by OOOOX

Second bathroom and guest room

The second bathroom takes the opposite approach — more enclosed and considerably darker. It works with render, white basins and white taps, giving it an almost graphic quality. It’s a different register from the rest of the apartment, but it holds to the same discipline in materials and details.

The children’s or guest room is calmer and more restrained, but here too we had no intention of compromising on what makes an interior of this kind complete. The cassette panelling, built-in furniture and concealed radiator keep the whole project coherent even in the parts that aren’t the most visually prominent at first glance.

Concrete finish, two white sinks and a darker-toned bathroom in the TIVOLI Art Nouveau apartment | design by OOOOX
Concrete finish, two white sinks and a darker-toned bathroom in the TIVOLI Art Nouveau apartment | design by OOOOX Children’s room in white tones with wall panelling, built-in furniture and a full-wall bookshelf | interior and reconstruction of an Art Nouveau apartment by OOOOX Children’s room in white tones with wall panelling, built-in furniture and a full-wall bookshelf | interior and reconstruction of an Art Nouveau apartment by OOOOX
Entrance hall in the TIVOLI Art Nouveau apartment interior, stone mosaic flooring made from three marble colours and contrasting fibreglass light fixtures | reconstruction design by OOOOX

The entrance hall as a first impression

The hallway is the first place where it becomes clear that this renovation didn’t take the route of replica, but of a precise new layer. The floor is a new stone mosaic in three colours of marble with detailed borders — it evokes the original floors of the building without being a literal copy.

Into this we introduced contrasting fibreglass light fittings suspended from the ceiling. It’s exactly this collision between a retro principle and a contemporary detail that we enjoy most in renovations.

A desperate original condition

The original condition was on the edge. A divided apartment, inserted mezzanines, damaged floors, missing details. And yet there was still something in it worth saving.

These are exactly the projects that interest us most. Not because we turn them into something new. But because we find again what was already there long ago.

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Why we love renovations

Curious about how we approach interior design projects like these? Read more about it here in the section RENOVATIONS—it’s our favorite area of expertise.

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by Radka - 20. 4. 2026

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