Oscar Lucien Ono

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Oscar Lucien Ono

Interior Designers

Oscar Lucien Ono

After a first professional career, including time in London, Oscar Lucien Ono founded the interior design studio Maison Numéro 20 in 2014. Based in Saint-Germain-des-Prés, at the crossroads of art and design, he embodies a new era of interior architecture with a portfolio of private residences, hotels, restaurants, and boutiques worldwide. Known for his eclectic style and bold designs, Oscar Lucien Ono draws from a multitude of sources, reinterpreting them to offer his vision of refinement and elegance. With a degree in art history, he creates captivating dialogues between various creative disciplines and aesthetic movements. Every project designed by Maison Numéro 20 tells a unique story, offering an emotional response to the space, creating what can be described as “design narrative”. With a strong fondness for contrasts, the interior designer works with subtle, understated decors, where the richness of textures and materials is elevated by “chiaroscuro” lighting. Recent works demonstrate the studio’s breadth and inventiveness. Oscar’s Aurea installation at Salone del Mobile Milano 2026 captivated audiences with its visionary approach to architectural fiction. In hospitality, his portfolio includes the 5-star Villa Mirae, a Relais & Châteaux in Cap d’Antibes, and Le Soleia, a four-star hotel in Nice, alongside international ventures across the globe. Residential projects span Paris, Madrid, and Ibiza, with a number of exciting new works in the pipeline, reflecting his ongoing exploration across disciplines and design typologies.

Other clients

Aline Asmar D'Amman

Aline Asmar D'Amman

Andreea Braescu

Andreea Braescu

Ateliers ARKAL

Ateliers Lison de Caunes

Ateliers Lison de Caunes

Bel Ouvrage

Callender Howorth

Callender Howorth

Camille Aryeh

Chalet ALPEN VALLEY

Chalet ALPEN VALLEY

Charles-Emmanuel Deppierraz

Charles-Emmanuel Deppierraz

Christian Lacroix Maison

Christian Lacroix Maison

Christophe-Nicolas Biot

Christophe-Nicolas Biot

Cole & Son

Colefax and Fowler

Colefax and Fowler

Curated Room

Écrin Blanc

Eric Brand

Fabrice Juan

FASSEN

HestiaLiving Everyday

HestiaLiving Everyday

Hill House Interiors

Hill House Interiors

Ina Rinderknecht

Ina Rinderknecht

Jane Churchill

Jannelli&Volpi

Jeanne & The Forest

Jeanne & The Forest

Juliette Rubel

Kelly Hoppen CBE

Kelly Hoppen CBE

L'Arboisie

La Tartane St Tropez

La Tartane St Tropez

Label Experience

Label Experience

Larsen

Leblon Delienne

Leblon Delienne

Mamie Megève

Manuel Canovas

Martyn Lawrence Bullard

Martyn Lawrence Bullard

Matières Libres

Matières Libres

Maya Altitude

Maya Hôtel Courchevel 1850

Maya Hôtel Courchevel 1850

Métiers Rares

Natalia Miyar

Par Excellence

Refuge de la Traye

Refuge de la Traye

Rodaa studio

Sacha Walckhoff

Sacha Walckhoff

Stéphanie Coutas

Stéphanie Coutas

Studio Louis Morgan

Studio Louis Morgan

Sunbrella

Treme Eats

Tropical Hotel, St Barth

Tropical Hotel, St Barth

Uncanny Studio

Victoria-Maria

White Noise

Oscar Lucien Ono

After a first professional career, including time in London, Oscar Lucien Ono founded the interior design studio Maison Numéro 20 in 2014. Based in Saint-Germain-des-Prés, at the crossroads of art and design, he embodies a new era of interior architecture with a portfolio of private residences, hotels, restaurants, and boutiques worldwide. Known for his eclectic style and bold designs, Oscar Lucien Ono draws from a multitude of sources, reinterpreting them to offer his vision of refinement and elegance. With a degree in art history, he creates captivating dialogues between various creative disciplines and aesthetic movements. Every project designed by Maison Numéro 20 tells a unique story, offering an emotional response to the space, creating what can be described as “design narrative”. With a strong fondness for contrasts, the interior designer works with subtle, understated decors, where the richness of textures and materials is elevated by “chiaroscuro” lighting. Recent works demonstrate the studio’s breadth and inventiveness. Oscar’s Aurea installation at Salone del Mobile Milano 2026 captivated audiences with its visionary approach to architectural fiction. In hospitality, his portfolio includes the 5-star Villa Mirae, a Relais & Châteaux in Cap d’Antibes, and Le Soleia, a four-star hotel in Nice, alongside international ventures across the globe. Residential projects span Paris, Madrid, and Ibiza, with a number of exciting new works in the pipeline, reflecting his ongoing exploration across disciplines and design typologies.

Other clients

Aline Asmar D'Amman

Aline Asmar D'Amman

Andreea Braescu

Andreea Braescu

Ateliers ARKAL

Ateliers Lison de Caunes

Ateliers Lison de Caunes

Bel Ouvrage

Callender Howorth

Callender Howorth

Camille Aryeh

Chalet ALPEN VALLEY

Chalet ALPEN VALLEY

Charles-Emmanuel Deppierraz

Charles-Emmanuel Deppierraz

Christian Lacroix Maison

Christian Lacroix Maison

Christophe-Nicolas Biot

Christophe-Nicolas Biot

Cole & Son

Colefax and Fowler

Colefax and Fowler

Curated Room

Écrin Blanc

Eric Brand

Fabrice Juan

FASSEN

HestiaLiving Everyday

HestiaLiving Everyday

Hill House Interiors

Hill House Interiors

Ina Rinderknecht

Ina Rinderknecht

Jane Churchill

Jannelli&Volpi

Jeanne & The Forest

Jeanne & The Forest

Juliette Rubel

Kelly Hoppen CBE

Kelly Hoppen CBE

L'Arboisie

La Tartane St Tropez

La Tartane St Tropez

Label Experience

Label Experience

Larsen

Leblon Delienne

Leblon Delienne

Mamie Megève

Manuel Canovas

Martyn Lawrence Bullard

Martyn Lawrence Bullard

Matières Libres

Matières Libres

Maya Altitude

Maya Hôtel Courchevel 1850

Maya Hôtel Courchevel 1850

Métiers Rares

Natalia Miyar

Par Excellence

Refuge de la Traye

Refuge de la Traye

Rodaa studio

Sacha Walckhoff

Sacha Walckhoff

Stéphanie Coutas

Stéphanie Coutas

Studio Louis Morgan

Studio Louis Morgan

Sunbrella

Treme Eats

Tropical Hotel, St Barth

Tropical Hotel, St Barth

Uncanny Studio

Victoria-Maria

White Noise