About

We are a design firm and cultural engine where interiors are shaped by global thinking, cultural curiosity, and human impact.

Our work is grounded in human behaviour, sensory awareness, and cultural fluency, giving form to ideas that resonate and endure.

We partner with leaders in hospitality, wellness, and forward-thinking development who see design as a strategic tool—one that builds trust, drives performance, and leaves a meaningful cultural mark. Whether we are creating a hospitality concept, a longevity intervention, or a multi-unit habitat, we translate complexity into clarity and vision into place.

Our practice thrives at the intersection of disciplines: interior design and art, human science and storytelling. As both a design studio and an art consultancy, we deliver a rare integration that strengthens identity, deepens emotional connection, and builds cultural relevance from the ground up.

Design is never static. It evolves. That’s why experimentation is embedded in our process—from prototyping spatial ideas to exploring sensory strategies and material futures. Every discovery in our studio informs the precision and creativity we bring to our clients’ projects, ensuring solutions that are both innovative and enduring.

Mason Studio is a Certified B Corporation, reflecting our belief that purposeful design leads to powerful business. It reduces waste, repurposes intelligently, and strengthens the communities it touches.

At the heart of our practice is the Cultural Hub, a living laboratory where ideas are tested through exhibitions, collaborations, and conversation. Here, artists, educators, nonprofits, and forward-thinking brands come together to explore new directions in culture and design. The Hub is more than a studio. It’s a civic gesture that proves leadership begins with listening, convening, and building together.

Co-Founder, Executive Director

Ashley Rumsey

BID Hons, NCIDQ, IDC, ARIDO, LEED AP

Ashley Rumsey brings the highest standards to both the design vision of projects and the management of the Mason Studio team. An advocate of purposeful design, Ashley has been a key part of the development of Mason Studio’s innovative research-based process. She ensures design decisions are thoughtfully evaluated based on their potential contribution to the end user, design process, and client’s goals. Her collaborative approach ensures a broad-based perspective, leveraging the skills and knowledge of the entire team to fully inform each design project. As a respected leader in the Canadian design community, Ashley has also been featured in international design media and regularly participates in thought leadership at notable conferences and events.

Co-Founder, Creative Director

Stanley Sun

BID Hons, BSC Hons, NCIDQ, IDC, ARIDO, BCIN

Stanley Sun’s vision is informed by a unique blend of formal studies in human sciences, fine arts and interior design. Approaching each challenge with a combined scientific and humanistic perspective, he first observes how people experience and react to the built environment to create a rational and intuitive design solution. Of particular interest to Stanley’s practice is the science of light and the physiological and psychological response people have to light. As an advocate for Canadian design, Stanley has been published widely and has participated as a keynote speaker at leading design conferences. He is also a sessional instructor at his alma mater, Toronto Metropolitan University.

Awards

  • - Core 77 / Notable Built Environment: The Invisible Tide
  • - DesignTO / Best in Festival: The Invisible Tide
  • - Canadian Interiors / Best of Year in Retail Design: The Clinica
  • - DesignTO / Best In Festival: Nourish Event
  • - IDA / Runxi Towers - Gold in Residential Interior Design / Housing - Multi Unit Dwellings
  • - APR / Chinese Design - Gold Winner Interior Built
  • - World Interiors News / Bronze - Residential Interiors - Runxi Towers
  • - ACD Awards / Resilient Retail Concept
  • - Gold Key Awards / Kimpton Saint George Hotel
  • - ARIDO / Award of Excellence - Kimpton Saint George Hotel
  • - World Interiors / Gold - Jing'an Townhouse, Shanghai
  • - Restaurant & Bar Design Awards / Virtuous Pie
  • - ARIDO / Award of Merit - PurParket
  • - ARIDO / Award of Merit - Virtuous Pie
  • - Canadian Interiors / Best of Canada - PurParket
  • - IDS / Best Booth Design
  • - ARIDO / Award of Merit: Andaz Hotel
  • - ARIDO / Award of Merit: Picnic Food
  • - Best of Canada Awards / Andaz Hotel
  • - Best of Canada Awards / Picnic Food
  • - ARIDO / Award of Merit: La Banane
  • - ARIDO / Award of Merit: Cabin Residences
  • - ARIDO / Award of Merit: Village Juicery

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