Our Bristol office is headed up by Arif, who also has a trade background.

He is passionate about disrupting the current status quo both in the house building and house selling market.  He envisions a future where we not only build better, but fairer. Business geekery is his element, along with strategic interpretation of Hartwyn’s wilder ambitions. A pragmatist and a big picture thinker, Arif drives Hartwyn forwards with integrity and passion.


Joe runs our Lancaster office, where he provides technical support and project management for our projects.

Joe has worked at the sustainable end of construction for over 20 years.  With a strong background in conventional building he has consistently worked towards a more integrated approach where low carbon materials and heritage trades walk hand-in-hand with modern building science. A natural materials advocate and building science geek, Joe is passionate about pushing the conversation forward and moving the industry towards the zero carbon targets it needs to meet.

Together we work across the UK using and encouraging materials and techniques which are more accessible than believed and less harmful to the planet.


What we do is more than a job, it’s part of who we are.  

Which means the values we hold ourselves to dictate more than how we do business. 

We find, as with most things, that simple is best.

  • Honesty and Integrity – we will do what we say we will and we will own our actions.
  • Abundance – Think big! For us and everyone we work with. 
  • Collaboration – Team work makes the dream work! It’s cheesy, but it’s true. 

Sitting hand in hand with our values, is our vision:

Making Natural the New Normal

By natural we mean low carbon. We mean helping the industry take stock of the tools at its disposal and normalising our approach.

Policy Documents

What do you want to do?