1st Edition

Double-Design for Durable Architecture Long-life Fabric and Function for the Democratisation of Space

By Michael Cassidy Copyright 2026
354 Pages 131 Color Illustrations
by Routledge

354 Pages 131 Color Illustrations
by Routledge

354 Pages 131 Color Illustrations
by Routledge

In this book, Michael Cassidy argues that the built environment should be designed to last physically for a very long time, saving on valuable material resources. By incorporating flexibility and adaptability into every design, buildings remain functionally useful for as long as they last without the need for wasteful demolition. This approach, which he calls Double-Design, has two complementary... Read more

1. BASIS FOR DOUBLE-DESIGN

2. ARCHITECTURE AND PEOPLE

3. DESIGN IMPERATIVES TO ACHIEVE USE LONGEVITY

4. DESIGN IMPERATIVES TO ACHIEVE MATERIAL LONGEVITY

5. CASE STUDY AND PRECEDENTS

6. THE WAY FORWARD

7. IMPLEMENTATION AND IMPACT

8. CONCLUSIONS AND FUTURE RESEARCH

Biography

Michael Cassidy graduated in 1962 with First Class Honours in Architecture from University College, London, and received his Master's degree in 1970 in City and Regional Planning from the University of California, Berkeley, where he was a Harkness Fellow. The University of Plymouth recently awarded him his Doctorate in Architecture. Following experience in hospital research, teaching and design, he was appointed leader of the Environmental Studies Group in the Greater London Council. From 1975, he worked as an architect and planner in private practice and has been responsible for the design and execution of more than one million square meters of buildings in twenty-six countries. He has held academic positions at University College, London, the Regent's Street Polytechnic (now University of Middlesex), Washington University, St Louis, the Centre for Planning and Development Research, UC, Berkeley, Kuwait University Department of Architecture and Gulf University for Science and Technology. He is a Registered Architect in the UK. He has published widely in the technical press and has held exhibitions of his paintings in Kuwait and Mexico.

“Double-Design is a visionary concept that has the potential to redefine architecture for a sustainable future; it addresses key challenges of resource efficiency, waste reduction, and uncertainty. Double-Design offers a pathway to reconcile tradition with innovation. It is a call to architects to embrace their role not just as creators of buildings, but as stewards of a built environment that serves both present and future generations”

Axel Ilhuicamina, Architect, Mexico

“Music to the ear in a world that is stridently discordant. A few thousand years ago humans took shelter in caves to protect themselves from changes in the environment. As the species succeeded, accommodation was expanded by excavating additional spaces; simple and effective with little environmental impact. Numbers have caused us now to operate in the built environment but we would be well advised to retain the same principles where shelter is more or less permanent and can be adapted to fulfil changing roles and requirements. Double-Design […] will make sufficient differences to the environment to make the future desirable again.”

Richard A D’Arcy, Architect and CAD Pioneer 

“I see Double-Design as one of several strategies that could lead to more responsive and inclusive environments. At a concept absorption level – with Universal Design pointing towards ergonomics, inclusivity and personalisation, and Sustainable Design addressing the energy (operational and embodied) consumption – I have a sense that Double-Design is a wider overarching framework – about ‘place-making over time’ giving the environment – and its fabric – time to breathe over a couple of generations.”

Rod Bond, Architect and IT Researcher, Ireland, UK

“In learning to become an architect, it is to some extent far more important to acquire an attitude and a manner than a specific to-do list.  [This] book is a great place for clarification and understanding many frustrations, confusions and complexities faced by students and architects at different career stages. Longitudinally, buildings last and should last for a long time. So do and should our architectural career and our education.”

Quinsan Ciao, Professor of Architecture, China