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About Hart Miller Design

Shaping sustainable spaces where good things happen; that’s the position we start every project from. Whether it’s a coffee shop or a workplace we’re creating, these spaces are about collaboration and ideas.

The world is a different place to how it was a few years ago and our needs and wants for spaces have been redefined. This hasn’t changed the way we design as we have always looked at each project without any templates or preconceptions of what it will look like.

We’re designers, we’re not a design & build company. This is an important distinction as we bring lateral co-design to all of our work. We’re obsessed with sustainability and not as a token gesture. This runs deep within both Hart Miller Design and our sister company MARK Product.

When you work with Hart Miller Design you get a team of thinkers who understand how people use a space and not just checking a list of requirements.



Anna Hart

Anna is the founder of Hart Miller Design and heads the design studio, working on a varied portfolio of projects that span hospitality and workplace.

She brings 20 years of experience and insight in understanding the culture, brand and aspirations of our clients from the outset. She then leads from the front, ensuring our design team deliver spaces that put people at their heart. In 2017 Anna was awarded FX Product Designer of the Year for her work across disciplines and together with John was awarded Mixology Design Team of the Year.

John Miller

John is co-director of Hart Miller Design. As well as working with Anna on the overall strategy and direction of the practice, John’s day-to-day focus in on our furniture brand MARK Product.

As a design team, John and Anna develop products which are used by leading businesses worldwide. Our clients include EY, BBC, WWF, Tate, RCA, Amazon, Facebook, Google, Globe Theatre and the British Red Cross. Before founding Hart Miller, John was the Director of the School of Design at Falmouth University where he was responsible for launching the interior design and fashion courses.


Interior Architecture

We are a multidisciplinary interior design studio. Designing cross-sector for businesses that put people first, our mission is to inject life into our work, designing environments where good things can happen.

Our work spans offices, hospitality, retail and education spaces. We are driven to make the world around us a better place and we like to challenge, inspire and innovate by putting feeling in to the spaces we design.

Working as a close team allows us to take a personal approach to our work, getting to know our clients and building longstanding relationships to drive their ambitions.

Product Design

MARK Product was created in Cornwall in 2007 through a shared passion for furniture, design and a belief in British manufacturing craft.

Pouring our energy, perception and experience from the worlds of furniture and interior design, manufacturing, healthcare, technology and education into countless conversations and ideas, they conceived a vision for a new furniture company.

MARK blends Anna and John’s different but complimentary approaches, personal service with high-volume capacity, and Cornish and urban perspectives. Drawing on talent from across Cornwall and the UK, skilled craftspeople from the creative, automotive, marine and textiles industries bring the MARK vision to life.


We have a responsibility to help you operate a sustainable business. Our sustainability strategy follows the principles of our sustainability strategy Do Net Good impact. This process enables our clients to make informed decisions and focuses on Community, Lifespan and Materials. 

We are informed

Our sustainability strategy has been developed with industry experts, Element Four. This works in line with the UN Sustainability Goals and is being implemented across our design studio and our manufacturing brand MARK. We are signatories of Science Based Targets and currently have our B Corp application in for assessment. 

material choices

When specifying materials we look at natural materials first, recycled second. We provide clients choice, enabling informed decisions to be made.

thinking about our community

Sustainable procurement can often mean looking for products closer to home. It’s important we consider who is making the product and that they are being fairly paid as well as transport costs. 


There is often a good case to be made for the re-use of existing products and furniture. Our business can refurbish and recondition many items to enable a longer life span. When looking at new we balance cost with lifespan and end of life e.g. can it really be recycled or is it destine for landfill? 

We design for end of life

In its lifetime a building can be refurbished 30-40 times. It’s therefore our responsibility to consider the end-of-life of materials and products that are used. We consider recycling or refurbishing options as part of our specification process.