wombat is a small, personal and friendly, design-focussed practice with a passion for eco sensitive design.


Tim Williams is the Principal and has 35 years international and local experience including many wonderful projects for some extraordinary clients. Tim has a Bachelor of Architecture with Honours degree from the University of NSW and more recently, a Master of Science with Distinction in Architecture, Energy and Sustainability, from London Metropolitan University.


Tim is a passionate advocate for the International Living Future Institute’s Living Building Challenge and in January 2022 became Tasmania’s first Living Future Accredited (LFA) Professional. This was followed by Tim receiving the Living Future Institute of Australia’s (LFIA) coveted Hummingbird Award in November 2022. This award recognises people in the LFIA community that have made outstanding contributions to accelerate the uptake of regenerative design and help build a LivingFuture. If you are wondering where the idea for the Hummingbird Award comes from, hear the 2 minute tale from the first African woman, Nobel Peace Prize winner, Wangari Maathai, HERE.



wombat is proficient designing to the stringent and seriously challenging requirements of the Living Building Challenge – “a philosophy, advocacy tool and certification program that promotes the most advanced measurement of sustainability in the built environment.” We also design new projects to the German Passivhaus Standard, “the most stringent energy standard in the world”. As well as designing buildings, Tim offers Environmentally Sustainable Design (ESD) Consultancy services to private, educational and community-focussed clients.


Tim has experience across many project types, including: private houses, secondary dwellings, renovations, alterations and additions; warehouse/loft apartments; schools, early learning centres and universities; hotel, retail and airport interiors; exhibitions.


Tim was born and educated in Sydney but has lived and worked in Morocco, Denmark, France, the UK and Sydney before settling in Hobart. He has taught postgraduates as a guest lecturer at London Metropolitan University and since returning from overseas to Australia in 2011, Tim has also been a Lecturer and Design Tutor within the faculties of Architecture at the University of Technology Sydney and the University of Canberra. Following Tim’s arrival in Hobart, he was appointed as a Lead Tutor in an architectural, sustainability-focussed design subject at the University of Tasmania.


Tim has setup wombat to create meaningful and inspirational, truly regenerative projects, with you.


To view Tim’s extensive portfolio of previous projects and full CV, please contact Tim for a free consultation.

wombat’s approach


To lead the way towards self-sustaining and regenerative projects fit for the 21st century and beyond.


To foster and explore a collaborative, ecologically-sensitive and integrated design approach and thus create a paradigm shift in the way we design our living and built environments.


To touch the earth lightly.


To seek out and to inspire forward-thinking clients to go

above-and-beyond current legislative standards of environmental and social sustainability.


To advocate and promote this approach at a public level.