A small studio with a long view
Founded in 2011 by Mara Halden and Theo Ash, we have completed more than 140 homes and workplaces across the South West, from Victorian terraces to new timber-framed houses.
Why we started Halden & Ash
We met on a hospital project in 2006 and spent years watching good ideas get value-engineered away. We set up the studio to do the opposite: fewer projects, more attention, and a partner who answers the phone.
Today we are nine people in a converted print works in Stokes Croft. We are RIBA Chartered, a certified B Corp, and we measure the embodied carbon of every building we design.
In numbers
Small team, steady track record
15
years in practice
140+
homes & workplaces completed
9
architects & designers
38%
average embodied-carbon saving vs. RIBA 2025 baseline
Let's talk about your home
Tell us about your site, your brief and your budget. We reply to every enquiry within two working days.
