Interior architecture & project management · Brittany, France

Letting places
breathe again.

Rennes studio48°06′ N · 1°40′ W
Erquy studio48°38′ N · 2°28′ W
Prevailing windWest–southwest
Photo: Jeanmarierohou, CC BY-SA 3.0

Manifesto

A stone farmhouse in Erquy, an 18th-century apartment in the heart of Rennes. Every place already has a story. Ours begins by listening to it: the thickness of a wall, the creak of a floorboard, the way the sun crosses the room at four o’clock. Only then do we draw. A wall opened, a material revealed, a light moved: often, a single right gesture is enough to change how a place is lived in.

Three winds,
by the sea or in the city

A farmhouse on the coast or an apartment in central Rennes, every project raises the same questions: what should be kept, what should be opened, where can calm be found? Our three beliefs, measured on the Beaufort scale.

Beaufort
10
Endure

Walls that stand their ground

Storms for the house by the sea, centuries and fashions for the stone townhouse: they have weathered a great deal, and they are still standing. We don’t change what has endured, we reveal it.

On the coast, granite laid bare, lime plasters, original timber frames. In town, restored herringbone parquet, cornices, fireplaces and terracotta tiles. Respect for what lasts, a taste for what stands the test of time.

“What has stood still stands.”
Bright room in an old house: soft green walls, pointed-arch windows, wide floorboards and an antique wardrobe
Old house, Heiligengrabe · D. Rabich, CC BY-SA 4.0
Beaufort
4
Open

Letting the breath back in

Over the years, places close in on themselves: small windows turned away from the sea, apartments carved into corridors and dark rooms overlooking a courtyard. We open them up, letting light and air flow, without erasing any of their character.

Partitions removed, enfilades restored, openings widened with respect for the façade, kitchens opened onto daily life. A great draught of fresh air that awakens without erasing.

“Open up without losing the soul.”
Empty sunlit room with two corner windows and a dark wooden floor
Light passing through · aismallard, CC BY-SA 3.0
Outside 9 · Inside 0
9/0
Shelter

Turmoil outside, refuge within

Outside, a storm rumbling over the coast or the bustle of the city. Inside, a place that soothes. We design interiors that feel all the sweeter while the world rushes past the window.

Warm materials, low raking light, careful acoustics, a reading nook facing the sea or the rooftops. The contrast that makes it gentle.

“Sheltered, yet never cut off from the outside.”
Raindrops on a window pane
Behind the glass · Theactivistuk, CC BY-SA 4.0

Expertise

From the first visit to the last lamp

Old houses

Breton farmhouses, village houses, fishermen’s cottages: we read the building before we transform it.

Apartments

18th- and 19th-century buildings, 1930s or more recent apartments in Rennes: reworked layouts, kitchens and bathrooms, bespoke storage.

Space planning

Layouts, circulation, openings. Giving every room back its light and its purpose.

Materials & decoration

Lime, granite, oak, linen, ceramics. Local materials that age beautifully.

Project management

Tendering with local craftspeople, site supervision, coordination with the building’s co-owners. A single point of contact.

Materials & furniture

Materials that age well

We choose materials that gain a patina rather than wear out, and furniture with simple lines that you keep for twenty years. Every project begins with a board of samples you can touch.

Weathered grey wood with deep grain
Weathered woodBrushed timber · natural oil
Dark stained wooden boards
Dark woodStained cladding · wide boards
Pale veined marble
Pale stoneHoned marble · worktops & basins
Grained brown leather
LeatherVegetable-tanned · seating, handles
Light wood living room with a window seat beneath a large opening onto the ocean
Window seat, all in light timberBuilt-in furniture

Modern, yet timeless

Solid wood, visible joinery, natural fabrics. Bespoke pieces designed with local joiners, mixed with a few vintage finds.

Pared-back living room: daybed, wooden sideboard, floor lamp and tall French windows
Daybed, wooden sideboard, floor lampBespoke & vintage

Method

Taking the time to read a place

A project unfolds in five stages. You always know where we are, and what comes next.

  1. Visit & listeningOn site, with you. How you live, what you wish for, the story of the house.
    1–2 h · free
  2. Survey & assessmentMeasurements, building condition, co-ownership rules, heritage and energy constraints.
    2–3 weeks
  3. Sketch & materialsPlans, perspectives, sample boards to touch.
    3–5 weeks
  4. TenderingCompared quotes from contractors we know and trust.
    3 weeks
  5. Works & handoverWeekly site visits, final inspection, finishing touches.
    varies

Where we work

Between the city and the coast

Two studios, an hour’s drive apart: Rennes and its surroundings on one side, the Penthièvre and Emerald coasts on the other. We work within roughly 50 km of each.

Stone façades of an 18th-century building on Place du Parlement, RennesRennesApartments in the historic centre, Thabor, Sainte-Anne; houses in Cesson-Sévigné, Saint-Grégoire, Bruz
View over the bay and central beach of ErquyErquyCoastal houses: Val-André, Saint-Cast, Fréhel, Lamballe, Saint-Brieuc, Dinan
English Channel Erquy Rennes ≈ 1 h Saint-Brieuc Saint-Cast Dinan Saint-Malo N

Lighting

When evening comes, low light

A well-made room is also judged after dark. We design light in layers (discreet ceiling light, lamps at eye level, grazing wall lights) and always in warm tones, below 2,700 K.

Living room at dusk, pale sofas, wooden coffee table and a candle
Low sofas, wooden table, candleAmbient · 2,200 K
Fabric-shaded lamp in raking light
Fabric shade2,700 K
White pendant light with a glowing filament bulb on a black background
Pendant2,400 K
Wall light with amber bulbs
Wall light2,200 K
Candle flame in a dark holder
Candle1,900 K
1,800 K · candle2,700 K · our evening limit4,000 K6,500 K · daylight

Contact

Tell us
about your place.

We reply within 48 hours and offer a first on-site visit, with no obligation.

bonjour@grandvent.fr · +33 2 99 00 00 00

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