Degree Zero Architects, co-founded and run by Dimitris Kolonis and Zetta Kotsioni, is an architectural studio based in Athens. They both studied and worked abroad, specifically in Greece, Cyprus, the USA and more recently the UK. 

Since 2001 the studio has focused on residential, hospitality and public projects, as well as, participated in several international competitions. With emphasis on delivering quality services, the studio always addressed each project as a challenge, identifying the particulars of its context, aiming to create its distinct identity. Concurrently, their separate construction company managed several development projects.

Dimitris and Zetta worked for Zaha Hadid Architects as Associates from 2012 until 2019. They were involved in various scale projects and typologies, gaining a wide experience and developing a know-how on advanced design and construction techniques. 


In  2019  they  moved  back  to  Greece  and  rebranded  their  architectural  and  construction  firms  to Degree Zero Architects.


Degree Zero Architects utilise their extensive industry expertise and passion to deliver projects with an emphasis on design, programmatic innovation and construction quality. Degree Zero Architects aims for innovation in term of thinking and design approach, materials and processes.

Dimitris Kolonis
Dipl.Arch, MArch, MBA, TEE


Dimitris is a registered architect in Greece since 1997. He has developed a major variety of residential, hospitality, mixed-use and commercial projects. Prior to ZHA, Dimitris has worked for practices in Greece and New York and run his own architectural and construction firm in Athens for over a decade.

Dimitris received his degree in Architecture from the Aristotle University of Thessaloniki in Greece in 1997. In 2000 he gained his master’s degree in Architecture from the Pratt Institute in New York and in 2019 an MBA in real estate and construction management from the University College of Estate Management in London. He has lectured in Athens and Rhodes and has been registered as an architect in Greece and the UK.


Zetta Kotsioni
Dipl.Arch, MArch, TEE


Zetta is a registered architect in Greece since 2000. She has worked in leading practices in Greece and the UK where she has gained wide experience on high end residential, hospitality, mixed-use and retail projects. She also led her own architectural studio in Athens working on private projects from design to construction, as well as public projects and international competitions.


Zetta has attained her diploma in Architecture at the Aristotle University of Thessaloniki. She then continued her postgraduate studies at the Architectural Association, London where she obtained her MArch from the Design Research Laboratory. She has lectured in Athens and Rhodes and has been registered as an architect in Greece and the UK. In 2013 Zetta also studied Fashion Pattern-making at St Martins College in London.



Dec. 2020

Publication of Oculis at Archisearch

Competition Entry with OF.Studio


Publication of Oculis at Designboom

Competition Entry with OF.Studio

Oct. 2020

Architectural Forum: Man On The Moon

Archisearch and Design Ambassador

Aug. 2020

Interview in Gala - Proto Thema

Architects' Brain Gain

by Thanasis Diamantopoulos

July 2020

Degree Zero Architects to participate at the

Design and Construction Forum

"Building the Future in Greece"


May 2020

Invited Reviewers

at Archisearch Portfolio Reviews

April 2020

Podcast: Advise to Young Architects


Feb. 2019

Participation with ZHA on the competition for the

New Archaeological Museum of Sparta

Publication at Archisearch

Publication at LIFO

Jan. 2020

Architectural Practice Degree Zero Architects

is founded

Oct. 2017

Speakers at the Conference of Architecture and Tourism in Rhodes Greece

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Oct. 2017

Interview in Kathimerini

by Pagona Lapsati

Mar. 2017

Speakers at ESO Conference of Architecture and Interior Design at Onassis Stegi in Athens, Greece


Nov. 2016

Interview in Archisearch, Greece

20121003_StSaviours Primary School.jpg

Sep. 2014

Participation at the STEAM event

at St. Saviours Primary School, London, UK

Nov. 2011

Publication in Archisearch

Apr. 2009

Entry at the World Architecture Festival 2009

Nov. 2008

Publication in Close-up Magazine


Jan. 2007

Publication in Domino Magazine

Jun. 1999

3rd award at the competition Cyborg City: Mechanical Islands for New York