InspirationRenovationReal Estate

Raising the roof in a 30 m² attic apartment in Gambetta

Among the narrow streets and shared gardens, a neglected 30-square-meter space is reinvented under the vision of Quentin Sommervogel. In this corner of the capital’s 20th arrondissement, the architect turned constraints into an intimate manifesto for everyday living.

 

“I was primarily looking for a great exposure, a view, and a project to transform,” says Quentin Sommervogel, founder of QSA, Quentin Sommervogel Architecture. When he discovered this apartment, nestled at the back of a leafy courtyard on one end of Rue de Bagnolet, he immediately saw its potential. A former workers’ housing complex from the early 20th century, it is located in an area that retains the memory of working-class Paris, with its workshops, warehouses, and rowhouses. Even today, the co-owned property, with its gardens and diverse neighborhood, preserves its village atmosphere.

 

But time sometimes makes fools of us all. Behind the charm of the place, the apartment itself bore the scars of decades. Two separate rooms connected by a rickety hallway, a ceiling so low it stifled the light, an outdated kitchenette, and above it all, an attic that had never been visited.

 

“Nothing was usable,” recalls the architect. The entire space was stripped down, from the walls to the floors, ceilings to the fireplace, revealing beams hidden beneath the plaster. And suddenly, high above, nearly 12 feet below the roof ridge, an unexpected space offered the promise of light.

 

From this newly found spaciousness, Quentin Sommervogel drew a clear principle: to create a single volume, bathed in light, where each function fits precisely into even the most constrained corner. The bedroom and bathroom are thus concentrated in the north, while living space extends southwards, beneath the exposed slope. For the architect, it’s all about proportion: “The more cramped the space, the more precise you have to be in terms of function and design.” The whole project thus became an exercise in rigor, serving both light and everyday life.

With its cobbled streets and leafy facades, Belleville retains an air of small-town living. Here, time stretches out to the beat of the neighborhood’s easygoing pace.

Set behind the kitchen counter, the entrance hall is designed to blend in seamlessly. The white coat hooks, lined up along the wall, disappear into the decor, while a shelf extends the cabinetry and subtly defines the entrance area.

The kitchen stretches along the main wall before following the curve of the staircase. Made from untreated water-resistant MDF, it features a matte green finish punctuated with white handles.

Against the bright green backdrop of the backsplash, the matte finish of the cabinet fronts gains depth and captures the light. The light wood table matches the blue rug that highlights it, anchoring the open space of the living room. All around, light glides over the maritime pine, amplified by the large windows and roof openings.

The living room is organized around the light-colored sofa and large mahogany cabinet, family heirlooms that were incorporated into the design. On the ceiling, a yellow-painted metal tie rod highlights the structure and adds visual structure to the simplicity of the space.

With this apartment, Quentin Sommervogel applied the principles he champions in his work to his own space: optimizing without constraining, revealing the structure rather than hiding it, and letting light guide the design.

The kitchen counter runs toward the hallway in a continuous row of storage space.

A right turn brings us into the bathroom. Designed as a living space, it makes the most of every inch: the toilet, sink, dressing area, and shower are arranged in a series of custom-made alignments.

The space is split into by the stainless steel sink. Its cylindrical shape contrasts with the beige grid pattern of the porcelain stoneware, softened by a thin frosted glass shelf. The mirrored bathroom cabinet reflects the light and multiplies the perspectives.

At the end of the passageway, the shower nestles into a light-filled alcove. Beige porcelain stoneware extends across the floor and up the walls, unifying the space.

A custom staircase leads to the mezzanine, incorporating storage space that extends the custom-made furniture. The white handles, echoing those in the kitchen, punctuate the fronts and unify the entire project.

The staircase leads to the bedroom, which is located as close as possible to the roof structure. The main beam, which has been preserved and painted white, structures the space and conceals the ventilation duct.

Optimized under the rafters, the insulation preserves volume and regulates the indoor temperatures, while the skylight extends the room into the sky.

Quentin Sommervogel’s Neighborhood Favorites
 
For “Belleville-style” cuisine
MAISON FAITOUT
1 rue Florian, 75020 Paris
A culinary school and bar-restaurant in a disused SNCF building along the Petite Ceinture railroad, with a terrace and very large, quite pleasant garden.
 
For a drink among locals
OCTAVE
1 place Octave Chanute, 75020 Paris
A grocery store selling excellent products, located on one of the corners of the bucolic Campagne in Paris micro-district.
 
For culture and architecture
I like to bring visitors who are unfamiliar with the Campagne à Paris area the series of squares and plazas along Rue de Bagnolet (Jardin de l’Hospice Debrousse, Place Pierre Vaudrey, Square Antoine Blondin, Rue Saint-Blaise, La Petite Ceinture, etc.).

Attic Mezzanine Open kitchen Skylight Stainless steel Wood

Photos : Philippe Billard
Text : Inès Haget

Architect : QSA - Quentin Sommervogel Architecture