Team

An ambitious, creative and
hard working team.

  • Sarah Harrison (ARB RIBA)

    Director

    ISarah 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)

    Director

    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 (ARB RIBA)

    Architect

    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.

  • Katie Beeby (ARB RIBA)

    Architect

    Katie is a Certified Passive House Designer, assisting us in our goals to deliver buildings that use a fraction of the energy while offering users exceptional comfort and air quality all day, every day. Passive House buildings may look typical from the outside, they are planned and executed to achieve a higher standard of envelope and technology.

    Katie qualified as an architect in 2016 after completing her RIBA Part I and II at Newcastle University. Katie is an experienced Project Architect who, through experience early on in her career of running smaller interior fit out focused projects, has gone on to gain experience running large complex projects in design led practices. Before rejoining Harrison Stringfellow, Katie worked as Project Architect for Cottrell & Vermeulen Architecture on a £10M Hindu Temple Hall and at Foster Wilson Architects, where she was the Project Lead at Stage 3 for a £2M extension and refurbishment of an existing children’s theatre in London.

    Katie’s interests not only lie in creating architecture that is highly sustainable, but are socially responsive that connect and serve their communities.

  • Jessie St. Clair (ARB RIBA)

    Architect

    Jessie is a creative, organised and collaborative member of the HSA team and recently qualified as an architect having completed her Part 3 in November 2021. She is currently the project architect for the Growing Sudley walled garden and changing rooms projects and ran several online engagement events with community members during the lockdown period. She has particular interest in low carbon materials, and is a member of the ACAN Natural Materials working group supporting an interest in how natural material practice often aligns with traditional building skills and heritage projects. This is being put into practice in the office through several ongoing research and development projects.

    Jessie previously completed a term abroad at Lund University Sweden as part of her masters at the University of Nottingham and joined the HSA team shortly after her graduation in 2019.

  • Bonnie Jackson (ARB RIBA)

    Architect

    Bonnie completed her Part I at the University of Sheffield and Part II at the University of Liverpool, before joining HSA in 2022. An Erasmus semester in Berlin broadened her interest in the balance between art and architecture. Her design ethos comes from her interest in architecture as a social
    issue, and how the built environment can be used as a design tool to improve equity and the wellbeing of its users.

    Bonnie’s thesis project focused on translating activism into a new architectural typology which could initiate sustainable social change, and was nominated for the Architect’s Journal Student Award.

  • Alan Ross (ARB RIBA)

    Alan has gained experience in a number of practices in the UK, whilst also working in Bern, Switzerland.

    His primary role has been to lead on the delivery of key projects within practices, heading construction information, design team co-ordination and site attendance to ensure delivery of intended design intent and detailing.

    Alan graduated from University of Liverpool and continues to attend as a guest critic and tutor to various Universities. Alan was previously a Technical Director at shedKM

  • 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.

  • Lauryn Thomson

    Part II Architectural Assistant

    Lauryn completed her Part I at the University of Nottingham and her Part II at the University of Sheffield, before joining HSA in 2024. Her master’s dissertation delved into the role of how creativity and community identity can foster a sense of place with architecture. With a strong interest in social architecture and how it can be created with low-impact bio-based materials.

    Lauryn’s thesis explored how a regenerative typology could be designed around rewilding the landscape while building a symbiotic community, and was nominated for the RIBA Silver Medal.

  • Lucy Matthews

    Part I Architectural Assistant

    Lucy graduated from Newcastle University in 2024 and joined us in the summer later that year. Thinking through making, Lucy utilises the tools of model-making, sculpture and theory to access architecture. Lucy’s graduation project was an inner-city Primary school that focused on the preservation of craft from form to function, with the building itself operating as a test-bed for material innovation.

    Before joining Harrison Stringfellow, she worked in Newcastle as a Prototyping Assistant for The Hub for Biotechnology in The Built Environment which involved designing and building/growing a 3 metre tall pavilion from mycelium and wool composite. ‘The Growing Room’  was displayed at the National Museum of Scotland for the Edinburgh Science Festival 2024. She also has delivered talks for the Women’s Giving Circle, a social enterprise that aids women and girls from disadvantaged backgrounds in STEM subjects.