About the Studio

THISS is an RIBA chartered, London based architecture and design studio We work on commercial, residential and conceptual projects at all scales, across the UK and abroad. Our projects are typically collaborations with clients who share our global, adventurous perspectives and with those who are seeking a taste of the spacious and material experience of nature, woven into their day-to-day environment. We develop and uncover unique and exciting spaces with a strong grounding in context and place, whether it be a residential home, restaurant, retreat, factory, bookshop or collection of beehives Inspired by ancient technologies and engaging in a conscious relationship with the landscape, we use carefully selected materials, low-impact methodologies and digital crafting tools wherever possible.

Associate Director:

Antonia Halse

Architectural Assistant:

Maciej Adaszewski

Collaborators :

ìssí nanabeyin    Nina Jua Klein    William Cheshire   

Charlotte Coulais    Ivan Morison
    Ben Brashaw    Duncan Strong   

Lee Gonzales    Afshin Dehkordi    Elisa Franceschi

About Us


Tamsin is an ARB and RIBA registered Architect with experience in the retail, hospitality, commercial, education and residential sectors.

Prior to founding THISS, Tamsin worked for Niall McLaughlin Architects to deliver highly crafted, large scale buildings. Formerly Tamsin worked for Michaelis Boyd Architects gaining experience in the hospitality and retail sectors as well as working to deliver high end residential projects in West London and Southern France. Tamsin previously lived in Iceland working for a local landscape-driven design practice focusing on projects in the tourist and hospitality sectors (when not skiing across frozen Arctic landscapes).

Tamsin is a Senior Teaching Fellow at the Bartlett School of Architecture where she runs a Design Unit focusing on contemporary making and experimental processes. This context of research and experimentation keeps the studio astride of innovations in design, concepts, critical theory and digital manufacturing.


Sash is a registered ARB Architect and Designer. He has extensive experience in the arts, commercial and private residential sectors.

Sash specialises in remote urbanism and landscape. Through extensive exploration and collaboration, Sash has engaged and participated with geographically marginal communities in Japan, Russia and across the Middle East to explore the relationship between nature and the built environment.

Sash has over 15 years of experience leading complex design and building projects. He has worked at various architectural practices including Hawkins Brown and Wiel Arets Architects in Amsterdam and has collaborated with artists Carl Robertshaw and Ivan Morison to create improbable flying kites and sculptures.

Sash studied Architecture at The Bartlett. He is a Design Tutor at The London Metropolitan School of Art, Architecture & Design, and is a guest tutor at The Bartlett and The University of Nottingham.

Outside of the studio Sash is two-time sport kite world champion and cycled unassisted from London to Delhi in 2011.


2013 • RIBA President’s Medal

2013 • Sir Bannister Fletcher Medal

2010/12/14 • World Sport Kite Champions

Selected Publications + Exhibitions

2019 • Dezeen, Ikea Upcycles furniture into colourful homes for Wildlife. Web.

2019 • Wildhomes, an exhibition of homes for wildlife in Sutcliffe Park, London

2016 • RIBA Journal, ‘Breaking Boundaries’

2015 • RIBA President’s Inauguration Exhibition, London (and travelled internationally)

2014 • RIBA Education Yearbook, ‘Magnitogorsk’

2013 • 100% Design, ‘Paper Space’. London – Exhibition of a CNC machined oak and waterjet cut steel table made by THISS works

2013 • Design Boom, Sash Scott Reading, Heather + Ivan Morison: Three Cubes Collide Kite. Web.

2013 • Wallpaper Magazine, World Architecture Graduates Directory

2013 • Architectural Review, ‘Russia Under the Spotlight’

2010 • London Festival of Architecture, Union Street Urban Orchard – Exhibition of a CNC machined plywood flatpack prototype for a bus stop.

© 2020

© 2021