Studio Mutual Spaces is a design practice built on the belief that meaningful environments arise from mutual relationships, between people, nature, materials, and the built environment. Our name reflects this core principle: spaces are never created alone. They emerge through exchange, reciprocity, and the interplay of many influences, from cultural memory to ecological context to daily human rituals.
Working across architecture, interiors, landscape, urban strategies, and crafted objects, we approach design as an interconnected ecosystem rather than separate disciplines. This perspective allows us to shape environments that are thoughtful, cohesive, and rooted in place.
Material responsibility sits at the center of our work. We prioritize healthy, sustainable materials and an aesthetic that balances contemporary clarity with cultural depth. Our process is human-centered and research-driven, with a focus on creating spaces that feel emotionally resonant and support well-being.
Above all, we design mutual spaces: environments that cultivate connection — to each other, to our surroundings, and to the stories that define who we are.
Let’s create a mutual space together, where your vision and our design philosophy come together in a shared, thoughtful design journey.
Working across architecture, interiors, landscape, urban strategies, and crafted objects, we approach design as an interconnected ecosystem rather than separate disciplines. This perspective allows us to shape environments that are thoughtful, cohesive, and rooted in place.
Material responsibility sits at the center of our work. We prioritize healthy, sustainable materials and an aesthetic that balances contemporary clarity with cultural depth. Our process is human-centered and research-driven, with a focus on creating spaces that feel emotionally resonant and support well-being.
Above all, we design mutual spaces: environments that cultivate connection — to each other, to our surroundings, and to the stories that define who we are.
Let’s create a mutual space together, where your vision and our design philosophy come together in a shared, thoughtful design journey.
Sümeyye Subasi Gmeiner
Founder of Studio Mutual Spaces
Founder of Studio Mutual Spaces
MSc Architecture & Environment · BSc Architecture · LEED Green Associate
With years of experience designing exhibitions and immersive environments for visitors, Sümeyye has developed a deep understanding of how architecture and design can engage and connect people. Over more than a decade of practice across Europe, Asia, and the United States, Sümeyye has designed exhibitions, architectural spaces, and multidisciplinary environments for institutions and studios including the Carnegie Museum of Art, Volkswagen, GSM Project, deWinder, Neo Studio Architects, Iglhaut von Grote, and NAU Architects. At the Carnegie Museum of Art, she contributed to the 58th Carnegie International, collaborating with over 100 artists and global partners.
Sümeyye founded Studio Mutual Spaces to explore how architecture can deepen the relationship between people, nature, and the built environment. Her background in Architecture & Environment, combined with her LEED training and extensive additional studies in material health and sustainable building practices, has shaped a design approach grounded in material responsibility, ecological awareness, and human-centered thinking.
Sümeyye‘s practice bridges architecture, interiors, exhibition design, and crafted objects, guided by a commitment to healthier materials and thoughtful, place-conscious design. She believes that impactful environments emerge through mutual relationships — between people, stories, and the spaces they inhabit.
Melike Ceyisakar Partner of Studio Mutual Spaces
Partner of Studio Mutual Spaces
Award-Winning Architect · Berlin Timber Award · German Engineers Award
Dipl.-Ing. Architecture · ARB Part III Architect · Architektenkammer Berlin
Melike is an award-winning architect, mother of two, feminist and environmentalist. Her work is shaped by humanist and socially conscious values, with a strong belief that architecture must respond to the urgent challenges of climate change, housing shortage and the creation of more liveable cities.
With over a decade of international experience across Germany, the UK and Turkey, she has worked on social and luxury housing, mixed-use, retail, cultural and infrastructure projects for offices including Zaha Hadid Architects, SWP Timber Design, FDA Architecture, USO, JDS Architects and Gerber Architekten.
At SWP Timber Design in Berlin, she was Executive Architect and Head of Design for the Lynar Timber Social Housing project, leading detailed design, tender and construction. The project won the Berlin Timber Award and the German Engineers Award, and was nominated for the German Timber Award, reflecting her expertise in timber construction, sustainable housing and building delivery.
At Zaha Hadid Architects in London, she worked as Senior Architect on a large mixed-use project in Istanbul, taking a key coordination role between the London design team, the Turkish local office, consultants and municipal authorities. At FDA Architecture in London, she was Executive Architect for the Selfridges Retail Space by Neri&Hu, delivering tender packages, construction drawings and furniture detailing within the constraints of a heritage-listed building.
Her earlier experience includes large-scale mixed-use design in China with USO, an office tower in Istanbul with JDS Architects, and the first-prize-winning Riyadh Metro Station competition with Gerber Architekten.
Through Mutual Spaces, Melike brings together sustainable design, timber construction, life-cycle thinking, construction detailing and project management. Her approach is rooted in ecological awareness, material responsibility and human-centred design, creating architecture that is not only sustainable, but aesthetically strong.
📧 studio.mutualspaces@gmail.com
Studio Mutual Spaces is a design practice built on the belief that meaningful environments arise from mutual relationships, between people, nature, materials, and the built environment. Our name reflects this core principle: spaces are never created alone. They emerge through exchange, reciprocity, and the interplay of many influences, from cultural memory to ecological context to daily human rituals.
Working across architecture, interiors, landscape, urban strategies, and crafted objects, we approach design as an interconnected ecosystem rather than separate disciplines. This perspective allows us to shape environments that are thoughtful, cohesive, and rooted in place.
Material responsibility sits at the center of our work. We prioritize healthy, sustainable materials and an aesthetic that balances contemporary clarity with cultural depth. Our process is human-centered and research-driven, with a focus on creating spaces that feel emotionally resonant and support well-being.
Above all, we design mutual spaces: environments that cultivate connection — to each other, to our surroundings, and to the stories that define who we are.
Let’s create a mutual space together, where your vision and our design philosophy come together in a shared, thoughtful design journey.
Working across architecture, interiors, landscape, urban strategies, and crafted objects, we approach design as an interconnected ecosystem rather than separate disciplines. This perspective allows us to shape environments that are thoughtful, cohesive, and rooted in place.
Material responsibility sits at the center of our work. We prioritize healthy, sustainable materials and an aesthetic that balances contemporary clarity with cultural depth. Our process is human-centered and research-driven, with a focus on creating spaces that feel emotionally resonant and support well-being.
Above all, we design mutual spaces: environments that cultivate connection — to each other, to our surroundings, and to the stories that define who we are.
Let’s create a mutual space together, where your vision and our design philosophy come together in a shared, thoughtful design journey.
Sümeyye Subasi GmeinerFounder of Studio Mutual Spaces
Founder of Studio Mutual Spaces
MSc Architecture & Environment ·
BSc Architecture · LEED Green Associate
With years of experience designing exhibitions and immersive environments for visitors, Sümeyye has developed a deep understanding of how architecture and design can engage and connect people. Over more than a decade of practice across Europe, Asia, and the United States, Sümeyye has designed exhibitions, architectural spaces, and multidisciplinary environments for institutions and studios including the Carnegie Museum of Art, Volkswagen, GSM Project, deWinder, Neo Studio Architects, Iglhaut von Grote, and NAU Architects. At the Carnegie Museum of Art, she contributed to the 58th Carnegie International, collaborating with over 100 artists and global partners.
Sümeyye founded Studio Mutual Spaces to explore how architecture can deepen the relationship between people, nature, and the built environment. Her background in Architecture & Environment, combined with her LEED training and extensive additional studies in material health and sustainable building practices, has shaped a design approach grounded in material responsibility, ecological awareness, and human-centered thinking.
Sümeyye‘s practice bridges architecture, interiors, exhibition design, and crafted objects, guided by a commitment to healthier materials and thoughtful, place-conscious design. She believes that impactful environments emerge through mutual relationships — between people, stories, and the spaces they inhabit.
Melike CeyisakarPartner of Studio Mutual Spaces