CO-AP is an award-winning architectural practice which takes a collaborative approach to realising fresh outcomes for each project, with an emphasis on research and development and an inherent regard for sustainability.

Established in 2005, CO-AP has completed a diverse range of projects including houses and apartments, showroom and office fit-outs, hospitality design, events, educational and retail design.

The practice thrives on challenging projects. Tackling difficult sites, complex briefs and strict planning controls enables us to seek alternative approaches to achieve better outcomes, and in doing so question the status quo. Our design process often results in layers of complexity and contradiction but always strives to distill an architecture that is simple, and executed with precision and clarity.



WILL FUNG studied architecture at the University of New South Wales. Upon graduation Will travelled to the Netherlands, where he joined Wiel Arets Architects in 1999 and worked on a diverse range of projects including houses, apartment towers, stadiums, urban masterplans and warehouse facilities. Returning to Sydney, Will was project architect at Engelen Moore, working on a number of retail, commercial and residential projects. Will has been a regular guest critic at the University of New South Wales School of Architecture and a part-time sessional design tutor at the University of Sydney School of Architecture. He was jury chair for single residential projects at the NSW Chapter AIA Awards in 2017 and a co-jury member for the 2013 Australian Interior Design Awards. Will co-founded CO-AP with Charles Markell in 2005.

TINA ENGELEN travelled overseas regularly during her formative years with her parents, who imported architectural design products for their family business DeDeCe. Tina studied interior design at Sydney College of the Arts before becoming features editor at Interior Design & Architecture, a new magazine published by Herbert Ypma. She did design internships with Arclinea and Burley Katon Halliday, formed Daffodil with Danny Venlet and Marc Newson, and undertook private and collaborative projects. Tina co-founded the architectural practice Engelen Moore in 1995, where she realised projects including Price O’Reilly House and worked with property development companies Walker, Australand, Multiplex and Chase Property Group. Engelen Moore had many projects published internationally and won numerous national and international awards, including their apartment building Altair which won both “Best Building in the Australasian Region” and “Best Housing Scheme in the World” at the World Architecture Awards 2002, Berlin. Tina was a jury member for commercial and interior architecture categories at the NSW Chapter AIA Awards in 2014 and was shortlisted for the Gold Medal at the 2015 IDEA Interior Design Awards. Tina joined CO-AP in 2007.

PATRIK BRAUN completed an apprenticeship in the construction industry before studying architecture at the University of Stuttgart, Germany. Following a scholarship at the University of Adelaide in 2000, Patrik joined Engelen Moore in 2002 and became an associate in 2007. He was project architect for a number of residential developments in Auckland, New Zealand, where his responsibilities included concept design, design development, construction documentation and site implementation. Patrik joined CO-AP in 2010.

RACHEL HARRIS is a UK registered architect who completed her studies at the University of Sheffield. She worked for RHWL Architects in London where she became a project architect and gained extensive experience in all aspects of project design and delivery particularly in the residential, education and hospitality sectors.  A highlight here was the involvement from inception to completion of the Orchard Hotel; a 202 bedroom environmentally conscious hotel for the University of Nottingham that was shortlisted for a regional RIBA award. Having decided to move to Sydney, Rachel enjoyed a position at Renato D’Ettorre Architects working on exclusive residential projects before joining CO-AP in 2014.

PHILLIP CHUM graduated from Bachelor of Design in Architecture in 2014 at the University of Technology, Sydney. He has travelled to Cambodia and Korea as part of his university studies, and was also selected to travel to the U.S. studying Modern American architecture in 2015. Phillip is currently completing his Masters in Architecture. Phillip joined CO-AP in 2015.

KINGSLEY MAY graduated from the University of Sydney with a Bachelor of Design in Architecture in 2012. He has had a continued educational relationship with the Aarhus School of Architecture, Denmark studying in both 2012 and 2014, and is currently completing his Masters of Architecture at the University of Sydney. Kingsley has worked extensively on boutique residential projects with Tribe Studio Architects and social housing projects whilst studying. Kingsley joined CO-AP in 2016.

ANASTASIA NIKOPOULOU completed her architectural studies at the National Technical University of Athens in 2005, and Barlett School of Graduate Studies, University College London, in 2007. Anastasia has worked for practices in London and Greece before establishing her own practice in Athens in 2007. She has experience in a wide range of projects from bespoke interior fit-outs and private residences to demanding large-scale masterplanning schemes. Anastasia joined CO-AP in 2016.

MITCHELL BRADFORD completed his undergraduate architectural studies at the Queensland University of Technology, graduating with honours. During his studies he was selected to take part in studios in Hong Kong and Vietnam, and ran several design studios. After completing his masters degree in 2011, Mitchell moved to Sydney where he has gained experience at multiple firms working on a diverse range of projects; predominately large scale mixed use and residential developments as well as small-scale residential, commercial and medical projects. Mitchell joined CO-AP in 2017.

PAST COLLABORATORS: Claire Meller (2009-2011) | Tom Chan (2015-2017)

INTERNSHIPS: Ben Peake (2013) | Raffaele Villano (2013) | Vernon Cheung (2014) | Sam Koopman (2014) | Frederik Reich (2014-15) | Vernon Cheung (2016-17)



NSW Nominated Architect William Fung (registration no. 7199)
VIC Nominated Architect William Fung (registration no. 16469)



2017 / NSW Chapter AIA Awards / Will Fung / Jury Chair for single residential category / NSW

2017 Apr / doubleTALK no.24 / Will Fung & Andrew Burges / Double Talk Speaker Series / Brickworks Studio Hobart / TAS

2016 Oct / Foundations 2016 / Will Fung (panelist) / AIA EmAGN speaker event / Brickworks Studio Sydney / NSW

2016 May / Architect & Builder Relationship / Will Fung & Angel Roumeliotis / Architecture On Show speaker series CIty of Sydney / Surry Hills Library /  NSW

2015 Nov / VALUE / Tina Engelen & Patrik Braun / EmAGN speaker event / Brisbane / Queensland

2015 Nov / CO-AP Architects / Will Fung / Architecture Speaker Series / The University of Adelaide / South Australia

2015 Oct / Architecture by Hand & Mind 60 Years of Architecture at UNSW / Red Centre West Wing UNSW / Sydney

2015 Mar / Zürich Basel Paris Bietigheim Torino Genova Milano Vigevano / Will Fung & Myles Wearing, Phillip Arnold & Sandra Lim recent travels  / Studio L5 / Surry Hills

2014 Oct / To Layer and Distill / Architecture On Show / Woollahra Council / Sydney

2013 Aug / Good Design is Everything / DesignEX Women in Design Speaker Series / Museum of Sydney / Sydney

2012 Oct / 2012 Houses Awards: Stories Behind Winning Projects / Tusculm AIA NSW Chapter / Sydney

2010 Oct / To Layer and Distill / Allen Jack + Cottier offices / Sydney

2009 Nov / To Layer and Distill / National Portrait Gallery / Canberra

2009 Sep – Nov / Portraits + Architecture / National Portrait Gallery / Canberra