Meet the Team

Meet the Team


A wide range of expertise, from established architects


Our London studio serves as a creative hub for our growing team which encapsulates a wide range of expertise, from established architects and emerging talent to specialists in project delivery

While our Cornwall base allows the team’s love of the local lifestyle, which imbues all of our work, to thrive.

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Marzouk Al-Bader

Founder /
Creative Designer

Having harboured a lifelong fascination with architectural and interior design, in 2013 Marzouk set out to develop his own striking new build, to serve as a tranquil coastal retreat for him and his family. The result was the RIBA award-winning Sand Dunes, situated on the Cornish beach of Mawgan Porth. Inspired by its grand success and his continuing captivation with the locality and its abundant charms, Marzouk left his 25-year long career in investments to begin an innovative new venture, focussed on offering others the opportunity for more thoughtfully designed homes around the south-west. Marzouk’s vision was to build a design agency with a reflection of his deeply held passions for contemporary design, the local landscape and the simple pleasures of coastal life.

Adam Casey

Founder /
RIBA Registered Architect

Since graduating with a masters degree from Bartlett School of Architecture at the University College London Adam has pursued a career focussed on designing high-end private residential properties. After many years at an award-winning London practice, he co-founded Watershedd with a view to exploring the opportunities offered by projects outside the narrow scope of the urban landscape. Since the company’s inception, he’s relished the challenges presented by a diverse range of sites and particularly enjoyed working closely with clients minded to create bold architectural homes.

Poppy Trevillion

Founder /
RIBA Registered Architect

Poppy graduated with a masters degree at the University of Westminster and joined her family’s esteemed London architectural practice soon after. There, she worked for several years developing state of the art commercial spaces with carefully curated interiors. In cofounding Watershedd, she was excited by the prospect of creating an entirely new practice with its own set of values and aspirations, as well as the opportunity to take an active role in developing impressive homes on her native soil. Her previous experience working on large scale and fast-paced projects has helped Watershedd develop the high level of service that sets it apart, while her discerning eye has driven its artful approach to interior design.

Max Lewis

Project Architect

Having joined Watershedd in 2019 with a Masters in Engineering and Architecture, Max completed his full architectural training at Westminster University and took his place among the team’s qualified practitioners. Before joining Watershedd Max had a diverse architectural experience working on high-rise mix-use projects and high-end residential schemes in Europe and the Middle East. Since joining Watershedd he has particularly enjoyed the creative process behind developing each residential project’s unique identity while expanding his knowledge of environmentally sustainable design.

Alex Dewick-Tew

Project Architect

Alex joined Watershedd in February 2022 after working with a diverse range of architectural practices. Whilst his years of experience have been primarily with private and developer led residential practices of varying scales and qualities, his experience also includes retail, theatre and healthcare design. Alex completed his training and qualified as an architect in 2018 after attending Lincoln, Sheffield and the University of the West of England. Alex’s interest lies in managing projects on site and resolving complex detailing in communication with contractors to achieve both practical and elegant solutions.

Megan Sadler

Senior Interior Designer

Megan has worked in the industry for 12 years having graduated with distinction from Central St Martins, before going on to study Architecture at the University of Newcastle and the University of Westminster before moving into Interior Design and gaining experience with renowned studio’s here and abroad. Over the past 4+ years she has been working on projects in Cornwall, including private residential projects and a large commercial project for an established Cornish-based brand. Megan has been a visiting lecturer of Interior Design at Falmouth University and specialises in materiality and specifying sustainably in Interior Design. Megan has a real passion for sourcing second-hand/ antique furniture and art, both due to her ethos of designing environmentally and her favoured aesthetics and runs sourcing as a part of her work.

Flo Losasso

Studio Assistant

Flo is the newest team member of Watershedd, with a background working in creative agencies and architectural publications in London. She is involved in all aspects of the business acting as studio assistant, whilst also having a keen interest in marine and natural history photography.