designed by Typical Organization built by Studio A. Stein

about us

 

Block722 is an Athens-based architecture studio, founded in 2009 by architect Sotiris Tsergas and interior designer Katja Margaritoglou.

 

The team combines Greek and Scandinavian heritage, as well as interdisciplinary experience, and creates work that feels confident, natural, and timeless. The studio undertakes a variety of work, from residential to commercial and hospitality, managing in-house all stages of architectural development, from concept design, through to construction and delivery.

 

Solutions always incorporate a focus on quality materials, a crafts-based approach and collaborations with local artisans and artists that interpret the Mediterranean spirit and traditions for the 21st century.

An architectural ethos that places a sense of balance at its heart is among this boutique, yet dynamic practice’s guiding principles. At the same time, Block722’s design solutions are strongly led by each project’s contextual needs and the client’s brief.

 

As a result, the studio has won several high-profile awards and has been featured widely in Greek and international media.

 

 

Sotiris Tsergas | Architect Engineer, Managing Director & Partner              

sotiris@block722.com

 

Katja Margaritoglou | Executive Creative Director & Partner
katja@block722.com 

 

 the team

Vasiliki Moustafatzi | Design & Project Director

MArch, National Technical University of Athens, Greece

vasiliki@block722.com

 

Michael Gryllakis | Construction Manager

MSc Civil Engineer, National Technical University of Athens,

Greece

michael@block722.com

 

Steef Teeuwen | Operations Director

steeuwen@block722.com

 

Natalie Dillon | Operations Support& BIM Manager

MArch, National Technical University of Athens, Greece

MSc in Conservation of Monuments and Sites,

KU Leuven-Raymond Lemaire,

International Center for Conservation, Leuven, Belgium

natalie@block722.com

 

Efi Spyrou | Communication & Artistic Director

MFA& BFA, Athens School of Fine Arts, Greece

BSc in Communication, University of Indianapolis, USA

efi@block722.com

 

Nikos Vlachos | Financial Accounting Manager

MBA, University of Patras, Greece

MSc Institute of Certified Public Accountants of Greece

nikos@block722.com

 

Maria Bekakou | Financial & Legal Assistant

Msc, London School of Economics, UK

maria@block722.com

 

Patricia Fakiolaki | Design Leader

MArch, University of Patras, Greece

patricia@block722.com

 

Georgia Nikolopoulou | Senior Architect Engineer & Design Leader

MArch, National Technical University of Athens, Greece

georgia@block722.com

 

Marilena Michalopoulou | Project Architect

MArch, École Polytechnique, Democritus University of Thrace, Greece

marilena@block722.com

 

Ersi Mantziara| Senior Architect, PA

MA in Architectural design, UTH

MArch, National Technical University of Athens, Greece

EMantziara@block722.com

 

Danai Lazaridi | Senior Interior Designer

MA in Architecture Design, University of Thessaly, Greece

BA in Interior Design, Vacalo Art & Design College,

Athens, Greece

danai@block722.com

 

Katerina Mavromoustaki | Interior Designer

BA in Architecture Design, University of Patras, Greece

katerina@block722.com

 

Athina Papachristou | Architect Engineer

MArch, National Technical University of Athens, Greece

apapachristou@block722.com

 

Eirini Tsakalaki | Senior Architect Engineer, Project Architect
MArch, National Technical University of Athens, Greece
eirinit@block722.com

 

Ioanna Petroulaki | Architect Engineer

MArch, National Technical University of Athens, Greece

ioanna@block722.com

 

Dimitris Aidonis | Senior Architect Engineer
MArch, Democritus University of Thrace, Greece
MA in Advanced architecture, IAAC, Barcelona, Spain
daidonis@block722.com

 

Aigli Lagodimou | Senior Architect Engineer
MArch, National Technical University of Athens, Greece
alagodimou@block722.com

 

Anastasia Dalma | Senior Architect
BA (Hons) Architecture (RIBA Part I), University of Kent, UK
Master of Architecture in Architecture (RIBA Part II), University of Kent, UK
adalma@block722.com

 

Foteini Chapsa | Senior Architect Engineer
MArch, National Technical University of Athens, Greece

fchapsa@block722.com

 

Markella Tzachrista | Architect Engineer
MArch, National Technical University of Athens, Greece
MA in Urban and Regional Planning,

National Technical University of Athens, Greece
MTzachrista@block722.com

 

Nikos Antonoulis | Architect Engineer

Civil Engineering and Surveying Engineering and

Geoinformatics Department (in progress)   

BSc Hons Architectural Studies, Strathclyde University (in progress)  

antonoulis@block722.com

 

Dimitra Stergiou | Architect Engineer            

MArch, École Polytechnique,

Democritus University of Thrace, Greece     

dstergiou@block722.com

 

Nikos Klironomos | Architect Engineer

MArch, École Polytechnique,

Democritus University of Thrace, Greece     

nklironomos@block722.com

 

Anna Papageorgiou | Interior Architect         

Interior Architecture, Decorative arts & object design,

West Attica University 

Msc Interior Architecture: Adaptive reuse, Hasselt University

apapageorgiou@block722.com

 

Elisavet Argyropoulou| Junior Architect

MArch, National Technical University of Athens, Greece

EArgyropoulou@block722.com

 

Chris Reizis | Junior Architect Engineer, 3D Visualizer
MArch, University of Patras, Greece
creizis@block722.com

 

 

 

 

 

Francesca Balfoussia | Design Director

MArch, National Technical University of Athens, Greece

francesca@block722.com

 

Christina Kontou | Senior Architect Engineer & Project Manager

MArch, National Technical University of Athens, Greece

BA in Interior Architecture, University of West Attica, Greece

christina@block722.com

 

Nileta Kotsikou | Interior Design Director & Project Manager

MArch, School of Engineering, University of Patras, Greece

MArch, The Institute for Advanced Architecture of Catalonia, Barcelona, Spain

nileta@block722.com

 

Nikol Chatzigianni | Administrative Manager

MSc, London Metropolitan University, UK

nikol@block722.com

 

Natasa Gounari | HR assistant 

Diploma, Surgery Nursing - IEK SBIE, Athens, Greece
ngounari@block722.com

 

Eleni Tsakalou | Accounting Assistant

MSc, Mathematical Finance &Risk Analysis, University of Athens, Greece

etsakalou@block722.com

 

Elena Milidaki | Design Leader

MArch, National Technical University of Athens, Greece

elena@block722.com

 

Apostolos Karastamatis | Project Architect

MArch, University of Patras, Greece

MA In Interior Design, University of Brighton, UK

apostolos@block722.com

 

Agni Stasinopoulou | Project Architect

BA in Architecture, University of Westminster, UK

MArch, University of Southbank, UK

agni@block722.com

 

Eirini Tsakalaki | Project Architect

MArch, National Technical University of Athens, Greece

eirinik@block722.com

 

Sofia Stefanopoulou | Interior Designer

MSc, National Technical University of Athens, Greece

stephanopoulou@block722.com

 

Gregory Bodiotis | Interior Designer

BA in Interior Architecture, AKTO 'Art & Design Collage', Athens, Greece

grigoris@block722.com

 

Yannis Mantzaris | Ιndustrial Designer

BA in Product Design and Innovation, Industrial Design, Middlesex

University, UK & MA in GEO-Design, Design Academy Eindhoven, Netherlands (on going)

yannis@block722.com

 

Xenia Bouranta | Architect Engineer, Interior Architect
MArch, National Technical University of Athens, Greece
xbouranta@block722.com

 

Electra Polyzou | Architect Engineer
MArch, National Technical University of Athens, Greece
electra@block722.com

 

Kostis Vatanidis | Architect
BSc, University of East London, London, UK  
MSc, TU Delft, Delft, the Netherlands
kvatanidis@block722.com

 

Despoina Kolovou | Architect Engineer
MArch, University of Patras, Greece
MSc, Lighting design, Hellenic Open University, Greece (in progress)
dkolovou@block722.com

 

Iasonas Diavatis | IT Assistant
MEng, Chemical Engineering, National Technical University of Athens, Greece
MSc, Computer Science, Athens University of Economics and Business, Greece
idiavatis@block722.com

 

Nansy Nikolopoulou | Architect Engineer

MSc Research in Architecture: Architectural Design-Space-Culture στο School of Architecture, NTUA, Greece

NNikolopoulou@block722.com

 

Giorgos Tsilomelekis | Junior Architect

MArch, Aristotle University of Thessaloniki, Greece

giorgos@block722.com

 

Tzemil Moustafoglou | Architect Engineer
MArch, École Polytechnique, Democritus University of Thrace, Greece
tmoustafoglou@block722.com

 

Evangelos Evangelou | Junior Architect
MArch, Department of Architecture, University of Ioannina, Greece
eevangelou@block722.com

 

Vasilina Tzouma | Junior Interior Architect

Interior Architecture, Decorative arts & object design, West Attica University         

vtzouma@block722.com

 

Konstantina Chronopoulou | Junior Architect

BSc in Architectural Studies, Cardiff University 

MArch of Architecture, Cardiff University      

kchronopoulou@block722.com

 

Maria Xatzikallia | Junior Architect Engineer

MArch, École Polytechnique, Democritus University of Thrace, Greece

mchatzikallia@block722.com

 

Anita Peslis | Junior Architect Engineer        

MArch, Department of Architecture, University of Ioannina, Greece

apisli@block722.com

 

Panagiotis Konstantopoulos | Junior Civil Engineer
MEng, Civil Engineering, National Technical University of Athens, Greece
pkonstantopoulos@block722.com

 

Aggeliki Kantartzi | Intern Architect Engineer

School of Architecture, Technical University of Crete (in progress)

akantartzi@block722.com

 

Elena Calapis

Cleaning Ambassador

 

recognition

IDA, International Design Awards, Residential Interior Design / Houses - Single/Family Dwelling, Gold winner Interior design award *O Lofos

Architecture MasterPrize 2023, Residential project, winner *O Lofos

Muse Hotel Awards, Resort - World-Class Adult Beach Resort, winners 2023 *Casa Cook Samos

World Luxury Awards, Luxury beachfront hotel & Luxury seaside hotel, Continent winner: Europe, winner* Meraviglia Slow Living

World Architecture Awards 43rd cycle winners 2023, Architecture/Realized category, winner * O Lofos

The Plan Award 2023, shortlisted *O Lofos

DOMA Greek Architecture Awards, Best Work, shortlisted *O Lofos

Archdaily Awards 2023, Building of the Year, nominee * O Lofos

ΑHEAD Awards 2022, shortlisted *Casa Cook Samos

World Luxury Hotel Awards 2022, Best Luxury Concept Hotel, winner *Meraviglia Slow Living 

Ηotel Design Awards 2022, 196+ Forum, winner *Casa Cook Samos

Greek Hotel of the Year 2022, Gold hideaway hotel & Gold all suite hotel, winner *Meraviglia Slow Living

Architizer A+Firm Awards 2021, Best architecture and design firms Europe, special mention *Block722 studio HQ

Big See Interior Design award 2021, Interior workplace, winner *Block722 studio HQ

Big See Interior Design award 2019, winner *Olea All Suite Hotel

Ahead Awards Europe 2019, Resort category, shortlisted *Olea All Suite Hotel

Design Awards 2018, finalist *Olea All Suite Hotel

Interior Design 6th Annual Best of Year Awards NY 2018, Best large resort, winner *Olea All Suite Hotel

100% Hotel Awards 2018, Best resort, best reception, best restaurant, best room, winner *Olea All Suite Hotel

Architects’ Directory honors the late, great Zaha Hadid, July 2016 Issue of Wallpaper* (W*208) *Sotiris Tsergas, Block722  

 

 

about us

 

Block722 is an Athens-based architecture studio, founded in 2009 by architect Sotiris Tsergas and interior designer Katja Margaritoglou.

 

The team combines Greek and Scandinavian heritage, as well as interdisciplinary experience, and creates work that feels confident, natural, and timeless. The studio undertakes a variety of work, from residential to commercial and hospitality, managing in-house all stages of architectural development, from concept design, through to construction and delivery.

 

Solutions always incorporate a focus on quality materials, a crafts-based approach and collaborations with local artisans and artists that interpret the Mediterranean spirit and traditions for the 21st century.

An architectural ethos that places a sense of balance at its heart is among this boutique, yet dynamic practice’s guiding principles. At the same time, Block722’s design solutions are strongly led by each project’s contextual needs and the client’s brief.

 

As a result, the studio has won several high-profile awards and has been featured widely in Greek and international media.

 

 

Sotiris Tsergas | Architect Engineer, Managing Director & Partner              

sotiris@block722.com

 

Katja Margaritoglou | Executive Creative Director & Partner
katja@block722.com 

 

 the team

Vasiliki Moustafatzi | Design & Project Director

MArch, National Technical University of Athens, Greece

vasiliki@block722.com

 

Michael Gryllakis | Construction Manager

MSc Civil Engineer, National Technical University of Athens,

Greece

michael@block722.com

 

Steef Teeuwen | Operations Director

steeuwen@block722.com

 

Natalie Dillon | Operations Support& BIM Manager

MArch, National Technical University of Athens, Greece

MSc in Conservation of Monuments and Sites,

KU Leuven-Raymond Lemaire,

International Center for Conservation, Leuven, Belgium

natalie@block722.com

 

Efi Spyrou | Communication & Artistic Director

MFA& BFA, Athens School of Fine Arts, Greece

BSc in Communication, University of Indianapolis, USA

efi@block722.com

 

Nikos Vlachos | Financial Accounting Manager

MBA, University of Patras, Greece

MSc Institute of Certified Public Accountants of Greece

nikos@block722.com

 

Maria Bekakou | Financial & Legal Assistant

Msc, London School of Economics, UK

maria@block722.com

 

Patricia Fakiolaki | Design Leader

MArch, University of Patras, Greece

patricia@block722.com

 

Georgia Nikolopoulou | Senior Architect Engineer & Design Leader

MArch, National Technical University of Athens, Greece

georgia@block722.com

 

Marilena Michalopoulou | Project Architect

MArch, École Polytechnique, Democritus University of Thrace, Greece

marilena@block722.com

 

Ersi Mantziara| Senior Architect, PA

MA in Architectural design, UTH

MArch, National Technical University of Athens, Greece

EMantziara@block722.com

 

Danai Lazaridi | Senior Interior Designer

MA in Architecture Design, University of Thessaly, Greece

BA in Interior Design, Vacalo Art & Design College,

Athens, Greece

danai@block722.com

 

Katerina Mavromoustaki | Interior Designer

BA in Architecture Design, University of Patras, Greece

katerina@block722.com

 

Athina Papachristou | Architect Engineer

MArch, National Technical University of Athens, Greece

apapachristou@block722.com

 

Eirini Tsakalaki | Senior Architect Engineer, Project Architect
MArch, National Technical University of Athens, Greece
eirinit@block722.com

 

Ioanna Petroulaki | Architect Engineer

MArch, National Technical University of Athens, Greece

ioanna@block722.com

 

Dimitris Aidonis | Senior Architect Engineer
MArch, Democritus University of Thrace, Greece
MA in Advanced architecture, IAAC, Barcelona, Spain
daidonis@block722.com

 

Aigli Lagodimou | Senior Architect Engineer
MArch, National Technical University of Athens, Greece
alagodimou@block722.com

 

Anastasia Dalma | Senior Architect
BA (Hons) Architecture (RIBA Part I), University of Kent, UK
Master of Architecture in Architecture (RIBA Part II), University of Kent, UK
adalma@block722.com

 

Foteini Chapsa | Senior Architect Engineer
MArch, National Technical University of Athens, Greece

fchapsa@block722.com

 

Markella Tzachrista | Architect Engineer
MArch, National Technical University of Athens, Greece
MA in Urban and Regional Planning,

National Technical University of Athens, Greece
MTzachrista@block722.com

 

Nikos Antonoulis | Architect Engineer

Civil Engineering and Surveying Engineering and

Geoinformatics Department (in progress)   

BSc Hons Architectural Studies, Strathclyde University (in progress)  

antonoulis@block722.com

 

Dimitra Stergiou | Architect Engineer            

MArch, École Polytechnique,

Democritus University of Thrace, Greece     

dstergiou@block722.com

 

Nikos Klironomos | Architect Engineer

MArch, École Polytechnique,

Democritus University of Thrace, Greece     

nklironomos@block722.com

 

Anna Papageorgiou | Interior Architect         

Interior Architecture, Decorative arts & object design,

West Attica University 

Msc Interior Architecture: Adaptive reuse, Hasselt University

apapageorgiou@block722.com

 

Elisavet Argyropoulou| Junior Architect

MArch, National Technical University of Athens, Greece

EArgyropoulou@block722.com

 

Chris Reizis | Junior Architect Engineer, 3D Visualizer
MArch, University of Patras, Greece
creizis@block722.com

 

 

 

 

 

Francesca Balfoussia | Design Director

MArch, National Technical University of Athens, Greece

francesca@block722.com

 

Christina Kontou | Senior Architect Engineer & Project Manager

MArch, National Technical University of Athens, Greece

BA in Interior Architecture, University of West Attica, Greece

christina@block722.com

 

Nileta Kotsikou | Interior Design Director & Project Manager

MArch, School of Engineering, University of Patras, Greece

MArch, The Institute for Advanced Architecture of Catalonia, Barcelona, Spain

nileta@block722.com

 

Nikol Chatzigianni | Administrative Manager

MSc, London Metropolitan University, UK

nikol@block722.com

 

Natasa Gounari | HR assistant 

Diploma, Surgery Nursing - IEK SBIE, Athens, Greece
ngounari@block722.com

 

Eleni Tsakalou | Accounting Assistant

MSc, Mathematical Finance &Risk Analysis, University of Athens, Greece

etsakalou@block722.com

 

Elena Milidaki | Design Leader

MArch, National Technical University of Athens, Greece

elena@block722.com

 

Apostolos Karastamatis | Project Architect

MArch, University of Patras, Greece

MA In Interior Design, University of Brighton, UK

apostolos@block722.com

 

Agni Stasinopoulou | Project Architect

BA in Architecture, University of Westminster, UK

MArch, University of Southbank, UK

agni@block722.com

 

Eirini Tsakalaki | Project Architect

MArch, National Technical University of Athens, Greece

eirinik@block722.com

 

Sofia Stefanopoulou | Interior Designer

MSc, National Technical University of Athens, Greece

stephanopoulou@block722.com

 

Gregory Bodiotis | Interior Designer

BA in Interior Architecture, AKTO 'Art & Design Collage', Athens, Greece

grigoris@block722.com

 

Yannis Mantzaris | Ιndustrial Designer

BA in Product Design and Innovation, Industrial Design, Middlesex

University, UK & MA in GEO-Design, Design Academy Eindhoven, Netherlands (on going)

yannis@block722.com

 

Xenia Bouranta | Architect Engineer, Interior Architect
MArch, National Technical University of Athens, Greece
xbouranta@block722.com

 

Electra Polyzou | Architect Engineer
MArch, National Technical University of Athens, Greece
electra@block722.com

 

Kostis Vatanidis | Architect
BSc, University of East London, London, UK  
MSc, TU Delft, Delft, the Netherlands
kvatanidis@block722.com

 

Despoina Kolovou | Architect Engineer
MArch, University of Patras, Greece
MSc, Lighting design, Hellenic Open University, Greece (in progress)
dkolovou@block722.com

 

Iasonas Diavatis | IT Assistant
MEng, Chemical Engineering, National Technical University of Athens, Greece
MSc, Computer Science, Athens University of Economics and Business, Greece
idiavatis@block722.com

 

Nansy Nikolopoulou | Architect Engineer

MSc Research in Architecture: Architectural Design-Space-Culture στο School of Architecture, NTUA, Greece

NNikolopoulou@block722.com

 

Giorgos Tsilomelekis | Junior Architect

MArch, Aristotle University of Thessaloniki, Greece

giorgos@block722.com

 

Tzemil Moustafoglou | Architect Engineer
MArch, École Polytechnique, Democritus University of Thrace, Greece
tmoustafoglou@block722.com

 

Evangelos Evangelou | Junior Architect
MArch, Department of Architecture, University of Ioannina, Greece
eevangelou@block722.com

 

Vasilina Tzouma | Junior Interior Architect

Interior Architecture, Decorative arts & object design, West Attica University         

vtzouma@block722.com

 

Konstantina Chronopoulou | Junior Architect

BSc in Architectural Studies, Cardiff University 

MArch of Architecture, Cardiff University      

kchronopoulou@block722.com

 

Maria Xatzikallia | Junior Architect Engineer

MArch, École Polytechnique, Democritus University of Thrace, Greece

mchatzikallia@block722.com

 

Anita Peslis | Junior Architect Engineer        

MArch, Department of Architecture, University of Ioannina, Greece

apisli@block722.com

 

Panagiotis Konstantopoulos | Junior Civil Engineer
MEng, Civil Engineering, National Technical University of Athens, Greece
pkonstantopoulos@block722.com

 

Aggeliki Kantartzi | Intern Architect Engineer

School of Architecture, Technical University of Crete (in progress)

akantartzi@block722.com

 

Elena Calapis

Cleaning Ambassador

 

recognition

IDA, International Design Awards, Residential Interior Design / Houses - Single/Family Dwelling, Gold winner Interior design award *O Lofos

Architecture MasterPrize 2023, Residential project, winner *O Lofos

Muse Hotel Awards, Resort - World-Class Adult Beach Resort, winners 2023 *Casa Cook Samos

World Luxury Awards, Luxury beachfront hotel & Luxury seaside hotel, Continent winner: Europe, winner* Meraviglia Slow Living

World Architecture Awards 43rd cycle winners 2023, Architecture/Realized category, winner * O Lofos

The Plan Award 2023, shortlisted *O Lofos

DOMA Greek Architecture Awards, Best Work, shortlisted *O Lofos

Archdaily Awards 2023, Building of the Year, nominee * O Lofos

ΑHEAD Awards 2022, shortlisted *Casa Cook Samos

World Luxury Hotel Awards 2022, Best Luxury Concept Hotel, winner *Meraviglia Slow Living 

Ηotel Design Awards 2022, 196+ Forum, winner *Casa Cook Samos

Greek Hotel of the Year 2022, Gold hideaway hotel & Gold all suite hotel, winner *Meraviglia Slow Living

Architizer A+Firm Awards 2021, Best architecture and design firms Europe, special mention *Block722 studio HQ

Big See Interior Design award 2021, Interior workplace, winner *Block722 studio HQ

Big See Interior Design award 2019, winner *Olea All Suite Hotel

Ahead Awards Europe 2019, Resort category, shortlisted *Olea All Suite Hotel

Design Awards 2018, finalist *Olea All Suite Hotel

Interior Design 6th Annual Best of Year Awards NY 2018, Best large resort, winner *Olea All Suite Hotel

100% Hotel Awards 2018, Best resort, best reception, best restaurant, best room, winner *Olea All Suite Hotel

Architects’ Directory honors the late, great Zaha Hadid, July 2016 Issue of Wallpaper* (W*208) *Sotiris Tsergas, Block722