Low impact house design architect
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Although every project is unique, all our designs are guided by our desire to deliver high quality environments that use available resources responsibly for the benefit of future generations. We believe that good quality design develops through observation and the active process of learning by doing. The maker culture, with its focus on technology and open-source sharing of ideas, greatly inspires our design values. We take pleasure in the handmade, the use of local, natural materials and the enjoyment of simple things. We believe that real luxury derives from the ability to live in harmony with one's environment. The inspiration for our work is rooted in our knowledge that we are an integral part of the natural world. Our ultimate goal is to make sustainable and low impact living accessible to all.


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Building Regulations

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Planning & Listed  Building Applications

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Concept Design

We are architects and designers who specialise in contemporary architecture with a green agenda. We are based in Camarthenshire, Llandeilo.


Project Management

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One Planet Development

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3D Rendering


​Mark Waghorn ARB

Mark studied architecture at Cambridge University and the University of North London and gained full qualification as an architect while working at DGA Architects in London. After becoming an associate and successfully completing numerous projects, Mark left DGA in 2006 to establish his own architectural practice. He moved to Wales in 2012.


Nancy Mills
Architectural Assistant

Nancy recently moved to Wales from Glasgow where she gained her Part II at Glasgow School of Art. After gaining her Part I at Plymouth University she worked in Bristol on multiple listed buildings and structures. She is now looking to channel her experience in conservation to more sustainable design solutions at MWD.

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Wil Garrard
Architectural Assistant

Wil graduated from the Liverpool John Moores University in 2021,  where he studied Bachelor of Art (Hons) Architecture (RIBA Part I).Wil enjoys the process of designing a building starting out with a simple idea. He has a keen interest in sustainability and he is inspired by architectural designs that include all the senses in order to create a holistic atmosphere.


Eduardo Castaneda Bracho
​Marketing Manager

Eduardo originates from the Basque Country in Northern Spain and lived in Spain and Germany before moving to the UK. He is a communications specialist and has years of experience working as a Broadcast PR consultant for many international clients. As a director of Mark Waghorn Design, Eduardo is responsible for all marketing and communications activities. Eduardo is fluent in German, Spanish and English.


Morgan Leyshon
Architectural Assistant

Morgan graduated from the University of Wales, Trinity St David’s in 2020 where he studied his Part I. He has a keen interest in compact living and sustainability, endeavouring to design with inclusivity and access in mind.

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Owen Wallbank ARB
Senior Architect

Owen qualified as an Architect at the University of Lincoln. Having worked in London for 8 years, he moved back to Wales in 2021. He is experienced in large scale residential projects, office fitouts and house refurbishments. Owen has a keen interest in the conservation of listed historic buildings and how they can be adapted for modern living.

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Sophie Zara James
Architectural Assistant and Project Manager

Sophie is a Welsh Part II Architectural Assistant come Project Manager who grew up in Cairo, Egypt, and South Wales. She studied her Part I in London Metropolitan University and continued her studies at the Centre for Alternative Technology in Mid Wales. She endeavours to work towards a world where sustainable architecture is the norm. She is excited to continue this endeavour in rural Wales at MWD.

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Roma Richardson
Architectural Assistant

Roma recently finished her BA in Architecture at the University of Sheffield. She enjoys creating innovative designs with a particular interest in low carbon buildings with a sustainable future.

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Huw Wallbank

Huw spends much of his time snoozing in his bed, waking only to greet visitors.


 We love it, it’s so much more amazing than anything we expected or set out to build. It would have seemed wrong to have knocked down the old house, and keeping it has definitely enhanced, not compromised, the space we’ve ended up with.  The whole house is turning out to be so much more than we ever expected!! We are still chuffed to bits with how it’s taking shape and can’t wait to move in.



Mrs Sioned Timothy., Carmarthenshire