An ambitious, creative,
hard-working team


An ambitious, creative,
hard working team.

Sarah Harrison (ARB RIBA)


Sarah is adept at negotiating the planning system and finding creative solutions for tricky sites. She ensures that quality management and organisation complement design and creative development.

With a wealth of experience, Sarah is now also an RIBA examiner, mentoring part 1 and 2 students through their office-based employment placements.

Sarah graduated from Liverpool University in 2002, having completed part of her studies at Sheffield University. Before co-founding HSA, she worked at a large commercial practice, reaching associate level.

Su Stringfellow (ARB RIBA)


Su has extensive site and detailing experience, having worked for a number of design practices before co-founding HSA. She also regularly reviews at local universities.

As project architect for the £11m refurbishment of the Grade II* listed Midland Hotel in Morecambe, Su was part of the Urban Splash team which earned the RIBA Crown Estate Conservation Award in 2009. 

Su graduated from Sheffield University in 2001 and, during her studies, travelled to the USA to explore methods of consultation after receiving the Sir HK Stephenson scholarship. 

Michael Noon

Part 2 Architectural Assistant

Michael Joined HSA having worked in London for several years for residential and commercial practice Moreno Masey where he worked on a number of high-end residential projects, negotiating a mixture of Grade Listed properties on Grosvenor sites across Central London.

Before this, Michael graduated from Liverpool University where he also spent time studying in Berlin developing an interest in temporary architecture and sustainable development.

Michael is currently studying for his Part 3.

Flynn Williams

Part 1 Architectural Assistant

Flynn graduated from Manchester School of Architecture in the summer of 2018 following which he moved to Liverpool to join HSA.  He was construction manager of his ateliers summer exhibition, designing and constructing large scale display installations.

With an active interest in art and design, Flynn received a distinction in his art foundation studies and has been involved in stage design for events such as Pangea music festival.

Maria Walker

Part 1 Architectural Assistant

In 2018, Maria graduated with a Bachelor of Architecture from Victoria University of
Wellington in New Zealand. During her studies she spent a semester abroad in 2017 at the
University of Liverpool where she developed an interest in environmentally and socially
sustainable design. This interest in sustainable living extends to her everyday life,
volunteering activities and participation in the 2018 Hello Wood summer school.

Before joining HSA, Maria worked as a teaching and research assistant at Victoria University.
During this time, she researched how virtual reality can be used to improve and facilitate the participatory design process of urban design.

Esmé Mortimore

Finance and Office Administrator 

Esmé joined HSA in 2017 having taken a career break following the birth of her child. Before this, Esmé worked at Bank of America for 13 years where she was the advertising account manager for Direct Promotional campaigns.

Achievements during her career include managing advertising campaigns for some of the world’s most recognisable brands within international sport, leading charities and a variety of blue chip organisations.

Esmé has a keen interest in interior design and has previously worked as an assistant designer for an independent design consultancy and soft furnishings boutique.

Esmé graduated from Liverpool University in 1997, gaining a BA Honours Degree in English and Sociology.



Collaborative Team

The team boasts a high level of project management experience in co-ordinating high profile and complex projects. This experience has proven highly effective in exposing and resolving significant challenges.

We develop our staff to become confident and skilled in creative problem-solving at all levels and in all aspects of the job. Every project is unique and we respond by listening and with a ‘can do’ approach. Directors continue learning through hands-on experience of delivering projects from inception to completion – and share new skills and knowledge with staff. This approach has resulted in a loyal, communicative team and good staff retention.  All projects are overseen by an experienced director.

Technical Ability

We are an RIBA-chartered practice which meets new projects with the technical ability to fuse creative, yet pragmatic thought. We look to provide specifications that are achievable and sturdy using research and best practice. In the past, we have developed new products with local suppliers in order to achieve historic finishes using modern materials. We produce models and test ideas through prototypes, and work closely with suppliers, manufacturers and contractors to develop robust, practical and value-for-money solutions.

Skill development, empowerment and learning is at the heart of everything we do.