Registered Company: 9722441     |     |     07929 354 612     |     Based in Surrey, UK

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Janna works collaboratively with other designers and freelancers to create the Grain Architecture Team.

Janna Laan Lomas

Janna completed her Part II Architecture at the Centre for Alternative Technology (CAT) in January 2014, and in 2015 Janna founded Grain Architecture Ltd, with a strong focus on designing for long-term environmental, social and economic responsibility. She also volunteers with NBUK (Natural Building UK), which is a non-profit organisation educating about and promoting the use of natural materials in construction. 


Grain Architecture has worked on a number of projects from bus stops and small residential extensions, to unique new-build houses and a large rural low-cost eco-housing development. Janna is excited by the creativity of designing spaces (she loves a floor plan!), and is passionate about opportunities for making a positive impact through architecture and rural community development. 

Founding Director & Designer

Kirsty Cassels

Kirsty is an experienced Part II architectural assistant from the South West coast of Scotland. She studied her BArch part time at the Glasgow School of Art while working full time in an Architects office and she studied her DipArch at the Centre for Alternative Technology where she met Janna. She has over ten years experience of working in practice for several different practices on projects ranging from small domestic extensions, to large multi million commercial developments.

Her passion is working with natural building materials and making architecture design and building more accessible to the general public. She was Vice Chair and Director of the Scottish Ecological Design Association for two and a half years, and she has been involved in many live volunteer builds over the past seven years either as a participant or a teacher. She loves a good brick pattern and has a bond she designed and implemented on a project named after her in Sierra Leone!

Architectural Designer

Olivia Harrison

Olivia joined our team this summer after working at Hill Holt Wood on a traditional log cabin design and build. She studied Part I architecture at Bath University, and she's now working part time for Grain Architecture whist doing her Part II architectural qualification at CAT (Centre for Alternative Technology). More info and photo coming soon.. 

Architectural Assistant

Marta Llorens

Marta has been freelancing from London for Grain since early 2019. She studied at Bath University and Oxford Brookes University, and completed her architectural qualifications at Westminster in 2018. She has experience working on a range on project scales including high end residential projects, and has a keen interest in sustainability. More info and photo coming soon.. 



Peggy is the 5 year old Tibetan Terrier who keeps us all in check. She tells us when it's time for lunch and when to stop work for the day. She also motivates us and de-stresses the office with her 'zen' vibe. She's a very clever dog with a Masters degree in Tricks and Office management, as a real asset to the team. We're currently teaching her Vectorworks. 

Office Manager

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We're always open to collaborating with other designers and architectural practices. Please get in touch via the contact form or email us if you are interested in discussing an opportunity.