Attic Apartment Renovation MOSTECKÁ
Originally, we were asked to design the interior of a show apartment. But the 59 m² attic space was far from a clean shell ready to be furnished. A massive diagonal reinforced-concrete brace cut through the living area, the layout was dictated by the sloping roof, and the small bedroom had just one narrow dormer window. What started as an interior design project quickly turned into a full renovation of an attic apartment. Mostecká was also one of the first residential developments where we were able to work with an apartment delivered as shell & core. Instead of making client changes to an already finished standard, we had the opportunity to rethink the layout, structural elements and the way individual parts of the apartment were used.
Living room and kitchen under the sloping roof
The biggest problem in the living room was impossible to overlook. A diagonal reinforced-concrete beam ran directly in front of the large studio windows and visually divided the space. We replaced it with a lighter steel truss structure and, instead of hiding it, left it exposed. We kept the living room and kitchen as open as possible. The kitchen continues into a breakfast bar and then into a long shelf beneath the windows, so the individual functions do not create additional separate volumes. Oak is combined with stainless steel, a metallic gold finish and black details. Mirrors on the walls reflect the surrounding rooftops and architecture of Malá Strana back into the apartment. In contrast, the entire private part of the apartment is concealed behind a sliding wall made of wood and mirrors.
A glazed bathroom instead of another dark room
There was very little space left for the bathroom in the middle of the layout and no window of its own. We therefore did not want to separate it from the bedroom with another solid wall. Instead, we used a full-height tinted glass partition that brings daylight from the bedroom into the bathroom while visually connecting the two spaces. The walls of the bathroom, corridor and toilet were finished with an anthracite mosaic render containing mica, which was also used directly inside the shower. The washbasin sits on a countertop finished with stainless-steel mosaic, while a substantial tubular radiator was placed in the corridor because there was not enough room for a conventional bathroom towel radiator. The bathroom and toilet also share a single sliding door. Depending on which room is being used, the door closes either the toilet or the bathroom.
Bedroom with a place beneath the window
The bedroom is small and its only narrow dormer window is positioned so low that it barely works as a view when moving around the room. We therefore designed a raised platform with a mattress directly beneath it. A limitation became a small place to sit or lie down and look out across the rooftops of Malá Strana. The bed itself was designed as a lightweight, visually floating structure with concealed lighting. Instead of a conventional headboard, the entire wall behind it is upholstered. The tinted glass partition also connects the bedroom visually with the bathroom, preventing two small rooms from feeling like two enclosed boxes.
The original attic apartment
Shell & core did not mean an empty box without limitations. The structural system, sloping roof, window positions and very different daylight conditions in the individual rooms were already fixed. Most inconveniently, the largest structural element occupied exactly the part of the apartment intended to become the main living space. So we were not simply choosing finishes, furniture and lighting. We altered the structural solution of the living area, reorganised the private zone and used the awkward spaces beneath the sloping roof for a walk-in wardrobe, storage room and built-in furniture.
When interior design is not enough
Mostecká started as the design of a show apartment for a developer. Once we saw the actual space, however, it was clear that furniture and finishes alone would not solve its problems. Only by intervening in the structure and layout could we make all 59 m² of the attic apartment work as a coherent whole.
We apply the same approach to our RENOVATIONS: first we look at what the building and its structure allow us to do. The interior comes afterwards.
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19. 8. 2026