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FOKSAL: A Light-Filled Attic Transformation in the Heart of Warsaw

Perched above the historic streets of Warsaw, Poland, the FOKSAL apartment by indoor, a Polish interior design studio, turns architectural quirks into captivating living spaces. Nestled within the attic of a 19th-century tenement on Foksal Street, the residence defies expectations of what a heritage building’s top floor should be – trading dark, cramped rooms for a luminous, contemporary retreat.

Modern dining area with red chairs, round tables, geometric yellow wall art, a large circular light fixture, and a reflective ceiling panel above.

The apartment’s unusual footprint was the first obstacle. Sloping ceilings, an array of differently shaped windows, and a maze-like layout could have easily felt restrictive. Instead of fighting these elements, the designers embraced them, treating each irregularity as an opportunity for creativity. The transformation began with a focus on natural light. Skylights were strategically installed in the hallway, their mirrored frames and wavy steel panels amplifying the sense of vertical openness. From the moment you step inside, the effect is almost like walking into a space that merges architecture with the sky above.

View of rippling water above a rectangular glass ceiling with shadows from window frames cast on a bright blue sky.

Modern dining area with red sculptural chairs, a round dark table, a large white pendant light, wooden stairs, abstract yellow wall art, and natural light streaming through a skylight.

Light continues as a main element with the stairwell, where perforated steel panels filter sunlight into intricate patterns that move throughout the day. The staircase leads to one of the apartment’s focal points: a round dining table by MDF Italia surrounded by sculptural Bold Chairs from Moustache, set against a radiant, color-drenched painting by Pawel Wasowski.

Close-up of a white perforated metal panel on the left, with an out-of-focus orange and yellow patterned surface in the background on the right.

Modern living room with unique red chairs, a light grey sofa, round tables, geometric decor, and pendant lights hanging from a sloped ceiling. Natural light enters through arched windows.

Located next to the dining area, the living room is centered beneath slanted ceilings that beautifully frame two arched windows. Anchoring the space is a curved, modular sofa by Noti, complemented by a sculptural Vibia Plusminus lighting system above, which adds dynamic contrast to the otherwise pristine white surfaces.

Modern living room with a beige sectional sofa, orange armchair, white coffee table, patterned rug, and wall-mounted bookshelf under slanted ceiling with large arched windows.

A modern interior features a wooden staircase with a white metal upper section, geometric furniture, abstract art, and sunlight streaming through a skylight.

Modern kitchen with a black marble island, white square tile accents, two bar stools, built-in appliances, and wooden flooring; oranges sit on the counter.

Throughout the apartment, contrasts in form create visual interest. The open-plan kitchen features a stone-topped island and cabinetry crafted from wood and ceramic tile – its clean, cubic lines a striking counterpoint to the home’s angular roofline.

Modern kitchen with a white tiled island, three bar stools, a black faucet, teapot, cups, and fruits on the counter; open shelving with dishes in the background.

A modern kitchen features a tiled counter with a black teapot, cup, and saucer, a wooden stool, and open shelving with minimalist dishware in the background.

A black shelving unit with open compartments, displaying a decorative wooden cat figurine and two light-colored bowls.

Minimalist kitchen with dark cabinets, a black marble island, open shelving with decor items, a modern faucet, and several oranges on the countertop.

A modern bench with a marble leg stands against a wood-paneled wall, beneath an abstract mirror and next to a stack of orange and white books.

Modern minimalist entryway with light wood paneling, abstract wall mirror, black bench with mixed legs, and two colored trays on the bench. Sunlight casts patterns on the wall.

Minimalist home office with a black chair, dark desk, wall-mounted shelves holding books, and abstract wall art in a light-filled room.

Modern bathroom with a pink vanity, black countertop, geometric mirror, wall lights, and a glass shower with a handheld showerhead.

The private wing of the apartment shifts the tone from openness to serenity. The bedroom and dressing area are wrapped in warm walnut tones and soft linen textures, fostering a sense of calm that feels worlds away from the city below. The primary bathroom is split into two distinct zones – one with a sleek, glass-enclosed shower, the other dedicated to bathing, featuring a minimalist round tub that becomes a sculptural addition in its own right.

Minimalist bedroom with a blue upholstered bed, beige bedding, round mirror above a floating wooden shelf, and neutral-colored walls and furniture.

A modern bedside table with a clock, a small cup, a stack of books, and a black lamp beside a blue upholstered bed with beige bedding.

Minimalist bathroom with a round freestanding bathtub, wall-mounted faucet, large mirror with vertical lines, and a white towel draped over the tub edge.

Modern bathroom with a large mirror, wall-mounted sink, black vanity, minimalist lighting, a white tub with a towel, and a black stool.

View looking up a modern, white metal staircase with perforated steps and geometric lines against a dark background.

A modern attic office with a skylight, wooden desk, shelves, red armchair, and small side tables on a herringbone wood floor.

For more information on the FOKSAL apartment or indoor, visit indoorprojekt.pl.

Photography by Marcin Grabowiecki.

Caroline Williamson is Editor-in-Chief of Design Milk. She has a BFA in photography from SCAD and can usually be found searching for vintage wares, doing New York Times crossword puzzles in pen, or reworking playlists on Spotify.

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